# 4.1. Physics Module Form 4 Chapter 4 - Heat GCKL UNDERSTANDING THERMAL EQUILIBRIUM. What is thermal equilibrium?

Save this PDF as:

Size: px
Start display at page:

Download "4.1. Physics Module Form 4 Chapter 4 - Heat GCKL UNDERSTANDING THERMAL EQUILIBRIUM. What is thermal equilibrium?" ## Transcription

1 Physics Module Form 4 Chapter 4 - Heat GCKL UNDERSTANDING THERMAL EQUILIBRIUM What is thermal equilibrium? 1. (, Temperature ) is a form of energy that flows from a hot body to a cold body. 2. The SI unit for (, temperature) is Joule, J. 3. ( Heat, ) is the degree of hotness of a body 4. The SI unit for (heat, ) is Kelvin, K. 5. When thermal equilibrium is reached, the net rate of heat flow between the two bodies is (, equal) 6. There is no net flow of heat between two objects that are in thermal equilibrium. Two objects in thermal equilibrium have the temperature irrespective of shape, mass, size or type of surface. Calibration of thermometer 7. The of an object is important in the construction of a thermometer. It is a physical quantity which is sensitive to and changes linearly with the change in temperature of the object. 4-1

2 Physics Module Form 4 Chapter 4 - Heat GCKL (l 0 )/ ice point : the temperature of pure melting ice/0 0 C 9. ( l 100 )/steam point: the temperature of steam from water that is boiling under standard atmospheric pressure /100 0 C 10. The lengths of the mercury column in the mercury-in-glass thermometer is 2.6 cm at 0 O C and 22.6 cm at 100 O C. When the thermometer is placed in hot water, the length of the mercury column is 16.9 cm. Calculate the temperature of the hot water. Answer : Liquid-in-glass thermometer 11. The liquid used in glass thermometer should (a) Be easily (b) Expand and contract rapidly over a range of temperature (c) Not to the glass wall of the capillary tube 12. List the characteristic of mercury (a) liquid (b) Does not to the glass (c) uniformly when heated (d) point C (e) point C 13. Which modification increases the sensitivity of the thermometer? A. Increasing the size of the bulb B. Increasing the thickness of the bulb C. Reducing the diameter of the capillary tube D. Reducing the length of the capillary tube 4-2

3 Physics Module Form 4 Chapter 4 - Heat GCKL 2010 Check Yourself 1 1. The diagram below shows a thermometer is used to measure the temperature of hot water. When the thermometer and the hot water are in thermal equilibrium, which of the following is not correct? A. The temperature of hot water is equal to the temperature of the thermometer B. No heat flow between thermometer and hot water C. Heat flows from hot water to thermometer D. Heat flows from thermometer to hot water 4. Diagram below shows the liquid levels from the bulb in three thermometers P, Q and R at certain temperatures. 2. Which of the following characteristics does a liquid-in-glass thermometer work? A. Volume of a fixed mass of liquid B. Length of the liquid C. Resistance of the liquid D. Pressure of the liquid What is the temperature reading at thermometer R? A O C B O C C O C D O C 3. Which of the following temperatures corresponds to zero on the Kelvin scale? A. 273 O C B. 0 O C C O C D. 100 O C 4-3

4 4.2 4 UNDERSTANDING SPECIFIC HEAT CAPACITY Definition of Heat Capacity 1. Quantity of energy required to raise the temperature of an object by 1 0 C. 2. The unit of heat capacity is 3. Beaker A has (greater, same, less) heat capacity than beaker B. A B 4. This means that the (bigger, smaller) the mass, the (larger, smaller) the amount of heat stored. Definition of Specific Heat Capacity 1. Quantity of energy required to raise the temperature of of a substance by 1 0 C. 2. The unit of specific heat capacity is 3. An object with low specific heat capacity can be heated up, as it requires less heat to increase its temperature by 1 0 C. It can be cooled due to little amount of heat stored in it. 4. An object with high specific heat capacity takes time to heat up, as it requires more heat to increase its temperature by 1 0 C. It is to cool down due to larger amount of heat stored in it. Q = Pt Pt = mc Q = Heat supplied P = Power of heater T = Time in seconds M = mass of substance C = Specific heat capacity = Increase in temperature 4-4

5 Determining the heat capacity of aluminium block 1. The purpose of wrapping the aluminium blok with wool to or of heat from the surrounding. 2. Oil in the holes for housing thermometer and the immersion heater is to improve the of heat from the heater to the thermometer through the aluminium block. 3. The immersion heater of 50 W rated power is used for 5 minutes to heat up the aluminium block. If the mass of the alumimium block is 1.0 kg and the rise in temperature is 16 0 C, what is the specific heat capacity of aluminium? Pt C Jkg -10 C -1 m Specific heat capacity calculated is usually than the standard value because some is lost to the surroundings. Aim To investigate the relationship between temperature rise and mass of water Experiment 80 0 C 60 0 C 80 0 C 40 0 C Hypothesis Manipulated variable Responding variable When the mass of water the temperature rise will. of water in temperature Fixed variable duration, water, weighing scale, rating of heater used Apparatus Thermometer, water, beaker water, weighing scale Setup 4-5

6 Procedure ml of water is placed in a 500 ml beaker. 2. A heater is placed in the water. 3. Heating process is carried out for 1minute. 4. Highest temperature achieved is recorded. 5. Step 2 to 4 is repeated for 200ml, 300ml, 400ml and 500ml of water. Analysis Volume of water used, V (ml) Final temperature, T 2 ( 0 C) Initial temperature, T 1 ( 0 C) Rise in temperature, = T 2 T 1 ( 0 C) 1/ ( 0 C -1 ) Conclusion V 1/ Applications of specific heat capacity Water as heating agent in heating radiator 4-6

7 2. Heat from hot water is released to the cooler surroundings of a room to achieve 3. Cold water will be recirculated to repeat the process continously 1. Cool water is pumped into the hot water reservoir to absorb a large amount of heat due to its specific heat capacity. Water as a coolant in car engine 4. Hot water is cooled by the air from the cooling fins and the fan 2. specific heat capacity of water allows it to absorb a large amount of from the 3. Cool water is recirculated through the engine blocks and the process continues while the engine is running 1. Cool water is pumped into the hot engine Sea Breeze (wind from the sea) 2. Hot air rises up from the land 1. During the day land gets hotter than the sea because c land c sea 3. Cool air blows from the sea to replace the space left by the hot air and currents in the air are formed Land Breeze (wind from the land) 3. Cooler air blows from the land to replace the space left by the hot air and convection currents in the air are formed. 2. hot air rises from the sea 1. During the night, the sea is hotter than the land because c land c sea 4-7

8 Plastic handle specific heat capacity Household apparatus and utensils Steel specific heat Check Yourself 1 1. Table below shows four types of liquid with their respective specific heat capacities and boiling points. All the liquids have the same mass and same temperatures of 30 o C. If the same amount of heat is supplied to them, which liquid, A, B, C or D will boil first? Liquid Specific heat capacity (Jkg -10 C -1 ) Boiling point ( o C) A B C D Table below shows the specific heat capacity of four different metals. 3. Diagram below shows a bullet moving at a velocity of 60 ms -1 is embedded in a wooden block. Assuming all the energy lost by the bullet is converted to heat energy and is absorbed by the bullet. What is the rise in temperature of the bullet? ( Specific heat capacity of the bullet = 120 Jkg -10 C -1 ) A. 0.5 o C B. 2.0 o C C o C D o C 4. Diagram below shows 200 g of water at 0 o C is poured into a cup containing 400 g of water at 80 o C. Assuming there is no heat loss to the surroundings. Which of the following is the most suitable metal to be used in a rice cooker for fast heating? A. P B. Q C. R D. S What is the final temperature of the mixture? [ Specific heat capacity of water = 4200 Jkg -10 C -1 ] A. 53 o C B. 60 o C C. 66 o C D. 70 o C 4-8

9 5. Diagram below shows the temperature-time graph of two solids X and Y of equal mass but of different substances are heated simultaneously by identical heaters. Which of the following comparison is correct? A. C x > C y B. C x < C y C. C x = C y 4-9

10 4.3 4 UNDERSTANDING SPECIFIC LATENT HEAT Definition of Latent Heat 1. Latent Heat is the total energy or released when a substance changes its state completely at a temperature. 2. Latent Heat of fusion is heat absorbed when changes into or heat released when liquid changes into solid at constant. 3. Latent Heat of vaporization is heat absorbed when changes into or heat released when vapour changes into liquid at constant. 4. Unit for latent heat is. 5. Process in which solid directly changes into vapour is called. Definition of Specific Latent Heat 1. Specific Latent Heat of fusion is heat absorbed when 1 kg changes into or heat released when liquid changes into solid at constant. 2. Specific Latent Heat of vaporization is heat absorbed when 1 kg changes into or heat released when vapour changes into liquid at constant. 3. Unit for latent heat is. 4. When temperature remain constant, energy of the molecules remain constant. However energy absorbed is used to overcome of attraction and atmospheric pressure. 4-10

11 Heating curve Fill the empty boxes for the heating curve below with the following words Solid, liquid, gas, boiling point, melting point, latent heat of fusion, latent heat of vaporization Calculation of specific latent heat of fusion Mass of water collected in Set A = 49.2 g Mass of water collected in Set B = 6.4 g Power of heater = 80 W Time interval of switching on the heater = 3 minutes 1. Calculate energy supplied by the heater. 2. What is the mass of ice melted due to the heat absorbed from the surroundings? 3. Determine the specific latent heat of fusion of ice. Pt (80)(3 60) L = = m 3 ( ) = = 4-11

12 Check Yourself 1 1. Diagram below shows the cooling curve of a Gas. Temperatures T 1 and T 2 represents power of 1 kw. The beaker and its content is resting on an electronic balance which measures the mass of the beaker and its content. T 1 T 2 A. Solidification Room temperature B. Boiling Point Solidification point C. Melting Point Freezing Point D. Melting Point Room temperature 2. Diagram below shows the heating curve of a solid Y of mass 2 kg which is heated by a heater of 70 W power. Which statement below is NOT true? When the water is boiling, it is found that 80 g of water is boiled away in 3 minutes. What is the specific latent heat of vaporization of water? A x 10 6 Jkg -1 B x 10 6 Jkg -1 C x 10 6 Jkg -1 D x 10 6 Jkg Diagram below shows the arrangement of apparatus used to determine the specific latent heat of fusion of ice. There are two identical sets. One of the sets is called a control set which is without a power supply. A. Specific latent heat of Y is Jkg -1. B. Specific heat capacity of solid Y and liquid Y are the same C. Total heat used is 1120 J D. Melting point of Y is 10 o C The aim of the control set is 3. Diagram below shows the arrangement of apparatus used to determine the specific latent heat of vaporization of water. The water in the beaker is heated by an immersion heater with a 4-12

13 A. To find the mass of ice melted due to the heat absorbed from the surroundings B. To find the mass of water formed by condensation from the vapour in the air C. To detect any changes in the melting point of the ice D. To find the mass of water evaporated 5. Heat produced in an engine block of car needs to be transferred out promptly to prevent overheating. This is done by circulating a suitable cooling liquid through the engine block. (a) What is meant by specific heat capacity of water is 4200 Jkg -1o C -1? (b) Based on the table above, (i) Explain the suitable characteristics of the cooling liquid to extract heat out of an engine block. High Specific Heat Capacity High specific latent heat of vaporization High boiling point Low rusting rate (ii) Decide which liquid is the most suitable and give reasons for your choice. (c) Total energy released by an engine in 1 hour = 9.0 x 10 7 J Energy breakdown : mechanical 40% and heat 60% Mass of cooling liquid circulating in 1 hour = 150 kg Temperature of water entering the engine = 30 o C Temperature of water exiting the engine = 60 o C Based on the information above, (i) Calculate the power of the engine (ii) Calculate the amount of heat produced by the engine in one hour. (iii) Calculate the specific heat capacity of the cooling liquid. 4-13

14 (d) Suggest two ways to dissipate the heat from the cooling liquid

15 4.4 4 UNDERSTANDING GAS LAWS What is kinetic theory of gases? The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules), all of which are in constant,. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains properties of gases, such as pressure, temperature, or volume, by considering their molecular composition and motion. The of an ideal is a measure of the average of its atoms. Boyles Law Charles Law Pressure Law Define the three gas laws. Formula Condition T = and of gas are constant P = and of gas are constant (temperature must be in scale) V = and of gas are constant (temperature must be in scale) Graphs 4-15

16 Experiment al set up Calculation involving Boyle s Law. Diagram on the right shows an arrangement to investigate the relationship between pressure and volume of a fixed mass of gas at constant temperature. The pressure of the air in the glass tube is measured by a pressure gauge and the pressure can be increased by using the bicycle pump. The pump of the gas is 1.5 x 10 5 Pa when the volume is 80 cm 3. (a) Explain how a gas exerts a pressure on the walls of its container. (b) State the Boyle s law. (c) Find the volume of the gas when pressure is 2.5 x 10 5 Pa (d) Find the pressure of the gas when the volume of the gas is 60 cm 3. (e) A bubble of air rises from the bottom of a pond to the surface. As the bubble reaches the surface, its volume is double its original volume. Assume the temperature is constant, find the depth of the pond. [Atmospheric pressure = 10 m of water] 4-16

17 Question involving Charles Law. (a) State Charles law. (b) Diagrams below shows how (a) the pressure of the gas change with temperature and (b) the volume of the gas change with temperature. (a) (b) (i) (ii) Compare the characteristics displayed by the graphs Relate the information you have mentioned to form a physics concept. (iii) Name the concept. (c) (i) Define pressure. (iv) Using kinetic theory of gas, explain why the pressure of a gas in a fixed container increases with an increase in its temperature

18 Questions involving Pressure Law. Diagram (a) shows the conditon of a snack pack kept in a refrigerator at 18 o C, whereas Diagram (b) shows the condition of the same snack pack in Borneo Highlands at the same temperature at 18 o C. (a) (b) Based on the above information and observation, (a) State one suitable inference. (b) State one suitable hypothesis. (c) With the use of appropriate apparatus, describe an experiment framework to test your hypothesis. In your description, state clearly the following: (i) Aim of the experiment (ii) Variables used in the experiment (iii) List of apparatus and materials pressure gauge, a with volume scale, rubber tube and retort stand. (iv) Arrangement of the apparatus 4-18

19 (v) (vi) The procedure of the experiment which include the method of controlling the manipulated variable and the method of measuring the responding variable 1. The apparatus for the experiment is set up as shown in the diagram 2. The of the syringe is pressed down slowly until the volume of air inside the syringe is 100 cm 3 3. The of the air in the syringe is read from the Bourdon gauge 4. The experiment is repeated with of air fixed at 80 cm 3, 5. Make sure that there is no and no increase in. 6. The way you would tabulate the data Volume, V (cm 3 ) Pressure, P (Pa) (vii) The way you would analyze the data Check Yourself 1 1. Diagram below shows a valve P connecting two cylinders, A dan B. When P is opened, gas from cylinder A moves to cylinder B. Which physical quantities does not change? A. Pressure B. Volume C. Mass D. Density P A. 2.0 x 10-4 m 3 B. 4.0 x 10-4 m 3 C. 5.0 x 10-4 m 3 D. 8.0 x 10-4 m 3 3. Diagram below shows capillary tubes (a) and (b) which are identical. If the atmospheric pressure is 75 cmhg, determine the length of gas column x and the pressure p. 2. The graph in the diagram below shows the relationship between pressure, P and volume, V of a fixed mass of gas at constant temperature. What is the value of V 2? Length x (cm) Pressure p (cmhg) 4-19

20 Physics Module Form 4 Chapter 4 - Heat GCKL 2010 A B C D Diagram below shows a fan is allowed to blow in a closed room for an hour. What are the possible changes to the pressure and temperature of the air in the room? 5. Air at a temperature of 27 o C is kept in a container at a pressure of 1 atmosphere. What is the pressure of the air, in atmosphere, if it is heated to a temperature of 77 o C? A B C D Table below shows the volume and temperature of a fixed mass of gas kept at constant pressure. V (cm 3 ) T( o C) 27 x Temperature Pressure A. Increases no change B. No change increases C. Decreases increases D. Increases Increases What is the value of x? A. 54 o C B. 300 o C C. 327 o C D. 600 o C 4-20

### 4.1. Physics Module Form 4 Chapter 4 - Heat GCKL UNDERSTANDING THERMAL EQUILIBRIUM. What is thermal equilibrium? 4.1 4 UNDERSTANDING THERMAL EQUILIBRIUM What is thermal equilibrium? 1. ( Heat, Temperature ) is a form of energy that flows from a hot body to a cold body. 2. The SI unit for ( heat, temperature) is Joule,

### (ii) the total kinetic energy of the gas molecules (1 mark) (iii) the total potential energy of the gas molecules (1 mark) NAME : F.5 ( ) Marks: /70 FORM FOUR PHYSICS REVISION TEST on HEAT Allowed: 70 minutes This paper consists of two sections. Section A (50 marks) consists of the structure-type questions, and Section B (20

### Put sufficient ice cubes into water (1 M) and wait for equilibrium (both exist) (1 M) NAME : F.5 ( ) Marks: /70 FORM FOUR PHYSICS REVISION TEST on HEAT Allowed: 70 minutes This paper consists of two sections. Section A (50 marks) consists of the structure-type questions, and Section B (20

### Topic 19b. Thermal Properties of Matter Topic 19b The infra-red image of a head shows the distribution of heat. Different colours indicate different temperatures. Which do you think are the warmest regions? Thermal Properties of Matter contents

### PAPER 2 THEORY QUESTIONS PAPER 2 THEORY QUESTIONS 1 Fig. 1.1 shows the arrangement of atoms in a solid block. Fig. 1.1 (a) End X of the block is heated. Energy is conducted to end Y, which becomes warm. (i) Explain how heat is

### 1. Thermal energy is transferred through the glass windows of a house mainly by. D. radiation and convection. (1) 1. Thermal energy is transferred through the glass windows of a house mainly by A. conduction. B. radiation. C. conduction and convection. D. radiation and convection. 2. The specific latent heat of vaporization

### Thermal Physics. Temperature (Definition #1): a measure of the average random kinetic energy of all the particles of a system Units: o C, K Thermal Physics Internal Energy: total potential energy and random kinetic energy of the molecules of a substance Symbol: U Units: J Internal Kinetic Energy: arises from random translational, vibrational,

### S6. (a) State what is meant by an ideal gas... IB PHYSICS Name: DEVIL PHYSICS Period: Date: BADDEST CLASS ON CAMPUS TSOKOS CHAPTER 3 TEST REVIEW S1. Thermal energy is transferred through the glass windows of a house mainly by A. conduction. B. radiation.

### Electricity and Energy 1 Content Statements Keep this in good condition, it will help you pass your final exams. The school will only issue one paper copy per pupil. An e-copy will be placed on the school s web-site. Electricity and Energy 1 Content

### CLASSIFIED 2 PRESSURE THERMAL PHYSICS MR. HUSSAM SAMIR CLASSIFIED 2 PRESSURE THERMAL PHYSICS MR. HUSSAM SAMIR 1. The diagram shows a simple mercury barometer. If atmospheric pressure increases, what happens to level X and to level Y? 2. Four flower vases have

### CALORIEMETRY. Similar to the other forms of the energy, The S.I unit of heat is joule. joule is represented as J. CALORIEMETRY CALORIMETRY Heat is the kinetic energy due to random motion of the molecules of a substance is called heat energy. Heat is a an invisible energy, that causes in us the sensation of hotness

### Thermal Effects. IGCSE Physics Thermal Effects IGCSE Physics Starter What is the difference between heat and temperature? What unit is thermal energy measured in? And what does it depend on? In which direction does heat flow? Heat (Thermal

### NATIONAL 5 PHYSICS THERMODYNAMICS NATIONAL 5 PHYSICS THERMODYNAMICS HEAT AND TEMPERATURE Heat and temperature are not the same thing! Heat Heat is a type of energy. Like all types of energy it is measured in joules (J). The heat energy

### P5 Heat and Particles Revision Kinetic Model of Matter: States of matter P5 Heat and Particles Revision Kinetic Model of Matter: States of matter State Size Shape Solid occupies a fixed volume has a fixed shape Liquid occupies a fixed volume takes the shape of its container

### Chapter: Heat and States Table of Contents Chapter: Heat and States of Matter Section 1: Temperature and Thermal Energy Section 2: States of Matter Section 3: Transferring Thermal Energy Section 4: Using Thermal Energy 1 Temperature

### Handout 10: Heat and heat transfer. Heat capacity 1 Handout 10: Heat and heat transfer Heat capacity Consider an experiment in Figure 1. Heater is inserted into a solid substance of mass m and the temperature rise T degrees Celsius is measured by a thermometer.

### GAS LAWS. Boyle s Law: Investigating the dependence of Volume on Pressure (Temperature kept constant) 1 GAS LAWS Boyle s Law: Investigating the dependence of Volume on Pressure (Temperature kept constant) The diagram below shows the apparatus which gives a direct reading for both the volume and pressure

### THERMAL PROPERTIES OF MATTER CHP # 8 HERMA PROPERIES OF MAER Q.1 Differentiate between heat and temperature? (Ans) Heat It can be defined as "the sum of kinetic energy of the molecules present in a substance is called heat". Heat

### Estimate, for this water, the specific heat capacity, specific heat capacity =... J kg 1 K 1. the specific latent heat of vaporisation. 1 A kettle is rated as 2.3 kw. A mass of 750 g of water at 20 C is poured into the kettle. When the kettle is switched on, it takes 2.0 minutes for the water to start boiling. In a further 7.0 minutes,

### PURE PHYSICS THERMAL PHYSICS (PART I) PURE PHYSICS THERMAL PHYSICS (PART I) 1 The kinetic theory of matter states that all matters are made up of or, which are in and motion. forces hold the atoms or molecules together. The nature of these

### 3.1and 3.2 Thermal. Rise in temperature in deg C Final temperature in C A B C D Name: Date: 3.1and 3.2 Thermal 1. During an experiment, a solid is heated from 285 K to 298 K. Which one of the following gives the rise in temperature, in deg C, and the final temperature, in C, of the

### EDULABZ INTERNATIONAL. Heat ASSIGNMENT Heat ASSIGNMENT 1. Fill in the blank spaces by choosing the correct words from the list given below : List : substance, thermal capacity, mass, latent, heat, cold, constant, water, J C 1, fusion, hot.

### Topic 3 &10 Review Thermodynamics Name: Date: Topic 3 &10 Review Thermodynamics 1. The kelvin temperature of an object is a measure of A. the total energy of the molecules of the object. B. the total kinetic energy of the molecules of

### Name... Class... Date... Specific heat capacity and specific latent heat Specific heat capacity and specific latent heat Specification references: P3.2.2 Temperature changes in a system and specific heat capacity P3.2.3 Changes of heat and specific latent heat Aims This is

### High temperature He is hot Lecture 9 What is Temperature and Heat? High temperature He is hot Some important definitions * Two objects are in Thermal contact with each other if energy can be exchanged between them. Thermal equilibrium

### Chapter 1 Heating Processes Chapter 1 Heating Processes Section 1.1 Heat and temperature Worked example: Try yourself 1.1.1 CALCULATING THE CHANGE IN INTERNAL ENERGY A student places a heating element and a paddle wheel apparatus

### PROGRAM OF PHYSICS. Lecturer: Dr. DO Xuan Hoi Room A PROGRAM OF PHYSICS Lecturer: Dr. DO Xuan Hoi Room A1. 503 E-mail : dxhoi@hcmiu.edu.vn PHYSICS 2 (FLUID MECHANICS AND THERMAL PHYSICS) 02 credits (30 periods) Chapter 1 Fluid Mechanics Chapter 2 Heat, Temperature

### 40P (2 x 60 x 60) = 2.5 x 10 6 (4200)(5) P = 1.82 x 10 5 W NAME : F.3C ( ) Marks: /50 Form 3 Physics Assessment on Heat Time allowed: 45 minutes Section A (34 marks) 1. An indoor swimming pool containing 2.5 x 10 6 kg of water uses 40 identical heaters to maintain

### Demonstrate understanding of aspects of heat Demonstrate understanding of aspects of heat Heat Transfer Temperature - temperature is a measure of the average kinetic energy of the particles making up an object (measured in C or K) 0 K = -273 o C

### Chapter 11. Energy in Thermal Processes Chapter 11 Energy in Thermal Processes Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the warmer decreases and the temperature of the cooler

### Preview. Heat Section 1. Section 1 Temperature and Thermal Equilibrium. Section 2 Defining Heat. Section 3 Changes in Temperature and Phase Heat Section 1 Preview Section 1 Temperature and Thermal Equilibrium Section 2 Defining Heat Section 3 Changes in Temperature and Phase Heat Section 1 TEKS The student is expected to: 6E describe how the

### O-LEVELS REQUIREMENT. Name: Class: Date: THERMAL PROPETIES OF MATTER Name: Class: Date: Unit 11 THERMAL PROPETIES OF MATTER 82465685 calvinkongphysics@yahoo.com NOTES O-LEVELS REQUIREMENT Candidates should be able to: 1. describe a rise in temperature of a body in terms

### Chapter 9. Preview. Objectives Defining Temperature. Thermal Equilibrium. Thermal Expansion Measuring Temperature. Section 1 Temperature and Section 1 Temperature and Thermal Equilibrium Preview Objectives Defining Temperature Thermal Equilibrium Thermal Expansion Measuring Temperature Section 1 Temperature and Thermal Equilibrium Objectives

### CIE Physics IGCSE. Topic 2: Thermal Physics CIE Physics IGCSE Topic 2: Thermal Physics Summary Notes Simple kinetic molecular model of matter Molecular model Solids Molecules close together in regular pattern Strong intermolecular forces of attraction

### Name: New Document 1. Class: Date: 83 minutes. Time: 82 marks. Marks: Comments: New Document Name: Class: Date: Time: 83 minutes Marks: 82 marks Comments: Q. Solid, liquid and gas are three different states of matter. (a) Describe the difference between the solid and gas states, in

### PHYS102 Previous Exam Problems. Temperature, Heat & The First Law of Thermodynamics PHYS102 Previous Exam Problems CHAPTER 18 Temperature, Heat & The First Law of Thermodynamics Equilibrium & temperature scales Thermal expansion Exchange of heat First law of thermodynamics Heat conduction

### HEAT HISTORY. D. Whitehall 1 HEAT HISTORY 18 th Century In the 18 th century it was assumed that there was an invisible substance called caloric. When objects got it was assumed that they gained caloric, therefore hot objects should

### Unit 11: Temperature and heat Unit 11: Temperature and heat 1. Thermal energy 2. Temperature 3. Heat and thermal equlibrium 4. Effects of heat 5. Transference of heat 6. Conductors and insulators Think and answer a. Is it the same

### 4.3.1 Changes of state and the particle model Density of materials. ρ = m. Content. Key opportunities for skills development 4.3 Particle model of matter The particle model is widely used to predict the behaviour of solids, liquids and gases and this has many applications in everyday life. It helps us to explain a wide range

### Ordinary Level Physics Long Questions: TEMPERATURE AND HEAT Ordinary Level Physics Long Questions: TEMPERATURE AND HEAT Temperature 2014 Question 7 (a) [Ordinary Level] The temperature of an object can be measured using a thermometer which is based on a suitable

### 3. EFFECTS OF HEAT. Thus, heat can be defined as a form of energy that gives the sensation of hotness or coldness 3. EFFECTS OF HEAT In the previous class you have learnt that heat is a form of energy. Heat can be obtained from various sources like the sun, fire, etc. When we read the weather forecast we observe that

### Comparing the actual value and the experimental value on heat. By conservation of energy Topic: Heat 1. Temperature and thermometers a. Temperature: - measure degree of hotness. -measure the average kinetic energy of molecules in random motions. b. Fixed points: -Lower fixed point: temperature

### Tick the box next to those resources for which the Sun is also the source of energy. 1 (a) The source of solar energy is the Sun. Tick the box next to those resources for which the Sun is also the source of energy. coal geothermal hydroelectric nuclear wind  (b) Fig. 4.1 shows a solar

### Kinetic Theory of Matter 1 Temperature and Thermal Energy Kinetic Theory of Matter The motion of the particles in matter is described by kinetic theory of matter. Matter is composed of particles that are atoms, molecules, or ions

### Temperature and Its Measurement Temperature and Its Measurement When the physical properties are no longer changing, the objects are said to be in thermal equilibrium. Two or more objects in thermal equilibrium have the same temperature.

### Matter and Thermal Energy Section States of Matter Can you identify the states of matter present in the photo shown? Kinetic Theory The kinetic theory is an explanation of how particles in matter behave. Kinetic Theory The three Shun Lee Catholic Secondary School S.3 Physics 2nd Term Test (2016-17) Level : Secondary 3 Subject : Physics Date : 6 April 2016 (Thursday) Time : 11:15 a.m. - 11:35 a.m. Time Allowed : 20 minutes Full

### Change in temperature of object of mass m kg. -T i. T= T f. Q mc PHYS1001 Physics 1 REGULAR Module 2 Thermal Physics SPECIFIC HEAT CAPACITY PHASE CHANGES CALORIMETRY Energy Mechanical energy: kinetic and potential Thermal energy: internal energy, Σ(KE + PE) Chemical

### JSUNIL TUTORIAL,SAMASTIPUR PH: CBSE Class-7 Science Heat and temperature solve questions and Notes CBSE Class-7 Science Heat and temperature solve questions and Notes Fill in the blanks : (a) The hotness of an object is determined by its temperature. (b) Temperature of boiling water cannot be measured

### * Defining Temperature * Temperature is proportional to the kinetic energy of atoms and molecules. * Temperature * Internal energy * Defining Temperature * We associate temperature with how hot or cold an object feels. * Our sense of touch serves as a qualitative indicator of temperature. * Energy must be either added or removed from

### Study Guide Unit 3 Chapter 6 DRAFT Study Guide Unit 3 Chapter 6 DRAFT Unit 3 BIG IDEAS Energy can be transformed from one type into another. Energy transformation systems often involve thermal energy losses and are never 100 % efficient.

### SPH3U1 Lesson 03 Energy THERMAL ENERGY AND LATENT HEAT LEARNING GOALS Students will learn: Heat changes the amount of thermal energy in an object Temperature is a measure of the average thermal energy in an object Heat capacity

### A).5 atm B) 1 atm C) 1.5 atm D) 2 atm E) it is impossible to tell 1. ne atmosphere is equivalent to A) 1.00 g ml 1 B) 22,400 ml ) 273 K D) 760. mmhg E) 298 K 2. A cylinder contains 2.50 L of air at a pressure of 5.00 atmospheres. At what volume, will the air exert a

### THE PARTICLE MODEL AND PROPERTIES OF THE GASES, LIQUIDS AND SOLIDS. STATES CHANGES THE PARTICLE MODEL AND PROPERTIES OF THE GASES, LIQUIDS AND SOLIDS. STATES CHANGES The particle model of a gas A gas has no fixed shape or volume, but always spreads out to fill any container. There are

### Homework - Lecture 11. Homework - Lecture 11. Name: Topic: Heat Capacity and Specific Heat Type: Numerical 1. Two liquids, A and B, are mixed together, and the resulting temperature is 22 C. If liquid A has mass m and was initially

### Chapter 11. Energy in Thermal Processes Chapter 11 Energy in Thermal Processes Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the warmer decreases and the temperature of the cooler

### Thermodynamics Test Wednesday 12/20 Thermodynamics Test Wednesday 12/20 HEAT AND TEMPERATURE 1 Temperature Temperature: A measure of how hot (or cold) something is Specifically, a measure of the average kinetic energy of the particles in

### There are four phases of matter: Phases of Matter HEAT SCIENCE There are four phases of matter: Phases of Matter There are four phases of matter: Phases of Matter Animation States of Matter Solids Solids: Are rigid, crystalline Hold their shape Have little

### Compiled and rearranged by Sajit Chandra Shakya 1 (a) (i) The kinetic theory of gases leads to the equation m = kt. (b) Explain the significance of the quantity m... the equation to suggest what is meant by the absolute zero of temperature...

### ST. STEPHEN S GIRLS COLLEGE Mid Year Examination PHYSICS Time Allowed: 1 hour 30 minutes NAME: F.3 ( ) MARKS: F.3 Physics Mid Year Examination 2005-2006 page 1 Form 3 193 students ST. STEPHEN S GIRLS COLLEGE Mid Year Examination 2005-2006 PHYSICS Time Allowed: 1 hour 30 minutes YRKwong, WYYau NAME: F.3 ( ) MARKS:

### 5. Temperature and Heat Leaving Cert Physics Long Questions 2017-2002 5. Temperature and Heat Please remember to photocopy 4 pages onto one sheet by going A3 A4 and using back to back on the photocopier Contents Temperature:

### Chapter 10 Temperature and Heat Chapter 10 Temperature and Heat Thermodynamics deals with 1. Temperature. 2. The transfer and transformation of energy. 3. The relationship between macroscopic properties and microscopic dynamics. Temperature

### CHAPTER 3 TEST REVIEW IB PHYSICS Name: Period: Date: # Marks: 52 Raw Score: IB Curve: DEVIL PHYSICS BADDEST CLASS ON CAMPUS CHAPTER 3 TEST REVIEW 1. Water at a temperature of 0 C is kept in a thermally insulated container.

### Per 5 Activity Solutions: Thermal Energy, the Microscopic Picture er 5 Activity Solutions: Thermal Energy, the Microscopic icture 5. How Is Temperature Related to Molecular Motion? ) Temperature Your instructor will discuss molecular motion and temperature. a) Watch

### Exam questions: HEAT. 2. [2003 OL][2004 OL][2005 OL][2006 OL][2007 OL][2008 OL] Name two methods by which heat can be transferred. Exam questions: HEAT Specific heat capacity of copper = 390 J kg 1 K 1 ; Specific heat capacity of water = 4200 J kg 1 K 1 s.h.c. of aluminium = 910 J kg -1 K -1 ; Specific latent heat of fusion of ice

### Phase Change Diagram. Rank Solids, liquids and gases from weakest attractive forces to strongest: Unit 11 Kinetic molecular theory packet Page 1 of 13 Chemistry Unit 11 Kinetic Theory Unit Quiz: Test Objectives Be able to define pressure and memorize the basic pressure units. Be able to convert to/from:

### Calorimetry. A calorimeter is a device in which this energy transfer takes place Calorimetry One technique for measuring specific heat involves heating a material, adding it to a sample of water, and recording the final temperature This technique is known as calorimetry A calorimeter

### Thermal Energy. Practice Quiz Solutions Thermal Energy Practice Quiz Solutions What is thermal energy? What is thermal energy? Thermal energy is the energy that comes from heat. This heat is generated by the movement of tiny particles within

### 1. How much heat was needed to raise the bullet to its final temperature? Name: Date: Use the following to answer question 1: A 0.0500-kg lead bullet of volume 5.00 10 6 m 3 at 20.0 C hits a block that is made of an ideal thermal insulator and comes to rest at its center. At

### Chapter 12. Temperature and Heat Chapter 12 Temperature and Heat 12.1 Common Temperature Scales Temperatures are reported in degrees Celsius or degrees Fahrenheit. Kelvin Scale 100 o C or 212 o F T K = T + 273.15 Temperature changes,

### Heat and Temperature Chapter 4 Heat Heat and Temperature Heat is a form of energy Heat is the energy of random motion of molecules constituting the body. It flows from a hot body to a cold body. Unit of heat is joule (J) and

### Chapter 17 Temperature and heat Chapter 17 Temperature and heat 1 Temperature and Thermal Equilibrium When we speak of objects being hot and cold, we need to quantify this by some scientific method that is quantifiable and reproducible.

### Chapter 13 - States of Matter. Section 13.1 The nature of Gases Chapter 13 - States of Matter Section 13.1 The nature of Gases Kinetic energy and gases Kinetic energy: the energy an object has because of its motion Kinetic theory: all matter is made if particles in

### Al-Saudia Virtual Academy Online tuiton Pakistan Online Tutor Pakistan. Heat Al-Saudia Virtual Academy Online tuiton Pakistan Online Tutor Pakistan Heat Nature of Heat: Heat is the transfer of energy (every in transit) from one body to another due to the temperature difference

### SPECIFIC HEAT CAPACITY AND HEAT OF FUSION SPECIFIC HEAT CAPACITY AND HEAT OF FUSION Apparatus on each table: Thermometer, metal cube, complete calorimeter, outer calorimeter can (aluminum only), balance, 4 styrofoam cups, graduated container,

### Unit 4: The Nature of Matter 16 16 Table of Contents Unit 4: The Nature of Matter Chapter 16: Solids, Liquids, and Gases 16.1: Kinetic Theory 16.2: Properties and Fluids 16.3: Behavior of Gases 16.1 Kinetic Theory Kinetic Theory kinetic

### IGCSE Double Award Extended Coordinated Science IGCSE Double Award Extended Coordinated Science Physics 5 - Thermal Properties of Matter Thermal Expansion You need to know thermal expansions for solids, liquids, and gases, and their applications. Thermal

### Chapter 14 Temperature and Heat Nicholas J. Giordano www.cengage.com/physics/giordano Chapter 14 Temperature and Heat Thermodynamics Starting a different area of physics called thermodynamics Thermodynamics focuses on energy rather than

### Page 1 SPH3U. Heat. What is Heat? Thermal Physics. Waterloo Collegiate Institute. Some Definitions. Still More Heat SPH3U Thermal Physics electrons and holes in semiconductors An Introductory ourse in Thermodynamics converting energy into work magnetism thin films and surface chemistry thermal radiation (global warming)

### Chapter 1 - Temperature and Heat Chapter 1 - and Heat and Heat It doesn t make a difference what temperature a room is, it s always room temperature. -Steven Wright David J. Starling Penn State Hazleton Fall 2013 and Heat Thermodynamics

### AP PHYSICS 2 WHS-CH-14 Heat Show all your work, equations used, and box in your answers! 1 108kg AP PHYSICS 2 WHS-CH-4 Heat Show all your work, equations used, and box in your answers! James Prescott Joule (88 889) James Prescott Joule studied the nature of heat, and discovered its relationship to

### Chemistry States of Matter Lesson 9 Lesson Plan David V. Fansler Chemistry States of Matter Lesson 9 Lesson Plan David V. Fansler States of Matter The Nature of Gases Objectives: Describe the motion of gas particles according to the kinetic theory; Interpret gas pressure

### Chapters 17 &19 Temperature, Thermal Expansion and The Ideal Gas Law Chapters 17 &19 Temperature, Thermal Expansion and The Ideal Gas Law Units of Chapter 17 & 19 Temperature and the Zeroth Law of Thermodynamics Temperature Scales Thermal Expansion Heat and Mechanical Work

### Thermodynamics. Thermodynamics is the study of the collective properties of a system containing many bodies (typically of order 10 23! Thermodynamics Thermodynamics is the study of the collective properties of a system containing many bodies (typically of order 10 23!) Chapter18 Thermodynamics Thermodynamics is the study of the thermal

### PhysicsAndMathsTutor.com 1 PhysicsAndMathsTutor.com 1 Q1. In an experiment to measure the temperature of the flame of a Bunsen burner, a lump of copper of mass 0.12 kg is heated in the flame for several minutes. The copper is then

### Thermodynamics - Heat Transfer June 04, 2013 THERMODYNAMICS - Heat and Heat Transfer: Heat (Q) is a form of Energy that is transferred between an object and another object or its surrounding environment due to a difference in Temperature. Heat is

### Chapter 19 Entropy Pearson Education, Inc. Slide 20-1 Chapter 19 Entropy Slide 20-1 Ch 19 & 20 material What to focus on? Just put out some practice problems Ideal gas how to find P/V/T changes. E.g., gas scaling, intro to the ideal gas law, pressure cooker,

### 12. Heat of melting and evaporation of water VS 12. Heat of melting and evaporation of water 12.1 Introduction The change of the physical state of a substance in general requires the absorption or release of heat. In this case, one speaks of a first

### National 5 Physics. Electricity and Energy. Notes National 5 Physics Electricity and Energy Notes Name. 1 P a g e Key Area Notes, Examples and Questions Page 3 Conservation of energy Page 10 Electrical charge carriers and electric fields and potential

### Physical Science Chapter 5 Cont3. Temperature & Heat Physical Science Chapter 5 Cont3 Temperature & Heat What are we going to study? Heat Transfer Phases of Matter The Kinetic Theory of Gases Thermodynamics Specific Heat (Capacity) Specific Heat Latent Heat

### A). Yes. B). No. Q15 Is it possible for a solid metal ball to float in mercury? Q15 Is it possible for a solid metal ball to float in mercury? A). Yes. B). No. The upward force is the weight of liquid displaced and the downward force is the weight of the ball. If the density of the

### CPO Science Foundations of Physics. Unit 8, Chapter 26 CPO Science Foundations of Physics Unit 8, Chapter 26 Unit 8: Matter and Energy Chapter 26 Heat Transfer 26.1 Heat Conduction 26.2 Convection 26.3 Radiation Chapter 26 Objectives 1. Explain the relationship

### Solid Liquid Gas 1. Solids have a fixed volume and a definite shape. 1 MATTER:- Anything or everything which occupies space and has mass is called matter. This word is used to cover all the substances and the material from which the universe is made. For example, the air

### Figure 1.1. Relation between Celsius and Fahrenheit scales. From Figure 1.1. (1.1) CHAPTER I ELEMENTS OF APPLIED THERMODYNAMICS 1.1. INTRODUCTION. The Air Conditioning systems extract heat from some closed location and deliver it to other places. To better understanding the principles

### Chapter 14 Temperature and Heat Chapter 14 Temperature and Heat To understand temperature and temperature scales. To describe thermal expansion and its applications. To explore and solve problems involving heat, phase changes and calorimetry.

### Quiz C&J page 316 (top), Check Your Understanding #6:... use a straw Quiz on Chapter 11 Quiz 9 1. C&J page 316 (top), Check Your Understanding #6:... use a straw Quiz 9 1. C&J page 316 (top), Check Your Understanding #6:... use a straw 2. What volume of helium has the same Chapter 3 Phases of Matter Physical Science CH 3- States of Matter 1 What makes up matter? What is the difference between a solid, a liquid, and a gas? What kind of energy do all particles of matter have? Outline Chapter 5 Matter and Energy 5-1. Temperature 5-2. Heat 5-3. Metabolic Energy 5-4. Density 5-5. Pressure 5-6. Buoyancy 5-7. Gas Laws 5-8. Kinetic Theory of Gases 5-9. Molecular Motion and Temperature