1. Which of the following appliances makes use of the heating effect of electricity?

Size: px
Start display at page:

Download "1. Which of the following appliances makes use of the heating effect of electricity?"

Transcription

1 Name: ( ) Class: Date: ASSIGNMENT Chapter 15: Practical Electricity 25 Multiple-Choice Questions (10 marks) 1. Which of the following appliances makes use of the heating effect of electricity? A Electric escalator B Electric fan C Electric rice cooker D Fluorescent lamp ( C ) 2. Which of the following is a unit of energy? A Coulomb per second B Newton per metre C Volt per coulomb D Watt second ( D ) 3. A 50 Ω resistor is connected in series with a 9.0 V battery. What is the power loss in the resistor? A 0.45 W B 0.62 W C 1.6 W D 5.6 W ( C ) 4. The earth wire of an electrical appliance should be connected to the A fuse. B metal casing. C neutral wire. D plastic handle. ( B ) 5. The cost of electricity is 27 cents per kwh. What is the cost of using a W iron at maximum power for 45 minutes? A 12.2 cents B 14.6 cents C 24.3 cents D 1458 cents ( C ) 2013 Marshall Cavendish International (Singapore) Private Limited 1

2 6. Which of the following statements is true? A B C D A fuse should be connected to the live wire. A fuse allows the circuit to work only if the fuse rating is equal to the operating current. A fuse should not be used if there is an earth wire connected to the casing of the appliance. A fuse should have a current rating equal to the operating current of the appliance. ( A ) 7. The power rating and the duration of usage of four electrical appliances are summarised in the table below. Appliance Power rating Time used Fan 250 W 6 hours Lamp 100 W 5 hours Rice cooker 2.5 kw 45 minutes Washing machine 3.5 kw 30 minutes Which appliance consumes the most energy? A Fan B Lamp C Rice cooker D Washing machine ( C ) 8. The diagram shows an electrical appliance with a metal casing (indicated by the dotted line) connected to the power supply. Where should a switch be placed? Live wire A B Metal casing represented by the dotted line Neutral wire Earth wire C D ( A ) 2013 Marshall Cavendish International (Singapore) Private Limited 2

3 9. A student draws a circuit, shown below, to show how an appliance should be connected to a fuse and the household mains. Live wire 240 V power supply Neutral wire 3 A 240 V, 550 W Identify the error in the circuit. A The fuse rating is too high. B The fuse rating is too low. C The fuse is connected wrongly. D The switch is connected wrongly. ( C ) 10. Which of the following conditions is not considered a hazard to the user? A Connecting the earth wire to the casing of the appliance B Exposed wires due to damaged insulation C Overloading of appliances in one socket D Using electrical appliances in damp conditions ( A ) 2013 Marshall Cavendish International (Singapore) Private Limited 3

4 Structured Questions (15 marks) 11. Resistors are connected to a 9.0 V d.c. power source as shown in the diagram below. ε = 9.0 V 10 Ω 20 Ω (a) Calculate the current flowing through the 10 Ω and 20 Ω resistors. [1] I = V R = 9 V 30 Ω = 0.3 A [1 m] The current flowing through both resistors is the same, as they are connected in series. (b) Calculate the power dissipated in the 10 Ω and 20 Ω resistors. [2] P 10 = I 2 R = (0.3 A) 2 10 Ω = 0.9 W [1 m] P 20 = (0.3 A) 2 20 Ω = 1.8 W [1 m] 2013 Marshall Cavendish International (Singapore) Private Limited 4

5 (c) In another circuit, two unknown resistors and Y are connected in parallel with the 9.0 V source. ε = 9.0 V 0.6 A 0.3 A Y Calculate the power dissipated by resistors and Y. [2] P = IV = 0.6 A 9.0 V = 5.4 W [1 m] P Y = IV = 0.3 A 9.0 V = 2.7 W [1 m] 12. The cost of a unit (kwh) of electricity is 27 cents. The table shows the daily usage of certain home appliances. Appliance Power rating Time used Electric kettle 200 W 30 min Water heater 800 W 45 min Television 1.5 kw 4 hours (a) Calculate the total energy used in a month in terms of kwh. (Assume there are 30 days in a month.) [4] Energy used by electric kettle = 0.2 kw h 30 days = 3 kwh [1 m] Energy used by water heater = 0.8 kw h 30 days = 18 kwh [1 m] Energy used by television = 1.5 kw 4 h 30 days = 180 kwh [1 m] Total energy = 3 kwh + 18 kwh kwh = 201 kwh [1 m] 2013 Marshall Cavendish International (Singapore) Private Limited 5

6 (b) Calculate the cost of electricity usage at the end of the month. [1] Cost = energy cost per kwh = 201 kwh $0.27 = $54.27 [1 m] 13. (a) An appliance is connected to the live and neutral wires of the a.c. mains supply. Explain what is meant by live and neutral in terms of potential. [2] The live wire connects the appliance to the high voltage mains and is at a high potential. [1 m] The neutral wire completes the circuit by providing a return path to the supply for the current and is always at zero potential. [1 m] (b) A washing machine and a television are connected in parallel to the 230 V mains supply, as shown in the diagram below. Fuse A x Fuse Y 230 V mains supply Washing machine 1.2 kw Television 0.9 kw (i) Suggest a suitable fuse rating for fuse. [2] Using P = IV, Current I flowing through washing machine = 1200 W 230 V = 5.22 A Current I flowing through the television = 900 W 230 V = 3.91 A Total current flowing through fuse = 5.22 A A = 9.13 A [1 m] Suggested fuse rating = 10 A [1 m] B x 2013 Marshall Cavendish International (Singapore) Private Limited 6

7 (ii) State and explain whether fuse Y will blow when points A and B are shorted together. [1] No. When A and B are shorted, current will bypass fuse Y and flow through AB instead. The total resistance in the circuit decreases, resulting in an increase in the current flowing through fuse, which causes it to blow [1 m] Table of Specifications Question no. Type of Syllabus learning Assessment question outcome(s) objectives* No. of marks 1 16(a) K/C (b) K/C (b) A (f) K/C 1 5 Multiplechoice 16(c) A (e), 16(i) K/C (b) A (i) K/C (i) A (d),16(f) K/C (e), 15(f),16(b) A 5 12 Structured 16(c) A (b),16(e), 16(g) K/C/A 5 * K/C: Knowledge/Comprehension A: Application 2013 Marshall Cavendish International (Singapore) Private Limited 7

1 of 23. Boardworks Ltd Electrical Power

1 of 23. Boardworks Ltd Electrical Power 1 of 23 Boardworks Ltd 2016 Electrical Power Electrical Power 2 of 23 Boardworks Ltd 2016 What is electrical power? 3 of 23 Boardworks Ltd 2016 Electrical power is the rate at which energy is transferred

More information

Electrical equations calculations

Electrical equations calculations Task Use the following equations to answer the questions. You may need to rearrange the equations and convert the units. An example has been done for you. P = I x V V = I x R P = I 2 x R E = P x t E =

More information

Electricity. Prepared by Juan Blázquez, Alissa Gildemann. Electric charge is a property of all objects. It is responsible for electrical phenomena.

Electricity. Prepared by Juan Blázquez, Alissa Gildemann. Electric charge is a property of all objects. It is responsible for electrical phenomena. Unit 11 Electricity 1. Electric charge Electric charge is a property of all objects. It is responsible for electrical phenomena. Electrical phenomena are caused by the forces of attraction and repulsion.

More information

Preliminary Course Physics Module 8.3 Electrical Energy in the Home Summative Test. Student Name:

Preliminary Course Physics Module 8.3 Electrical Energy in the Home Summative Test. Student Name: Summative Test Student Name: Date: / / IMPORTANT FORMULAE I = Q/t V = I.R R S = R 1 + R 2 +.. 1/R P = 1/R 1 + 1/R 2 + P = V.I = I 2.R = V 2 /R Energy = V.I.t E = F/q Part A. Multiple Choice Questions 1-20.

More information

Question Bank. Electric Energy, Power and Household Circuits

Question Bank. Electric Energy, Power and Household Circuits Electric Energy, Power and Household Circuits 1. (a) What do you understand by the term electric work? (b) State the SI unit of electric work and define it. (c) Name two bigger units of electric work.

More information

ANSWERS AND MARK SCHEMES. (a) (i) 0.4 A 1. (ii) 0.4 A 1. (b) (i) potential difference = current resistance V 1. (ii) 1.6 V 1

ANSWERS AND MARK SCHEMES. (a) (i) 0.4 A 1. (ii) 0.4 A 1. (b) (i) potential difference = current resistance V 1. (ii) 1.6 V 1 QUESTIONSHEET 1 (a) (i) 0.4 A 1 (ii) 0.4 A 1 (b) (i) potential difference = current resistance 1 2.4 V 1 (ii) 1.6 V 1 (c) showing all working 1 correct answer with units for total resistance: 16 Ω 1 calculate

More information

Calculate the total resistance of this combination. (3)

Calculate the total resistance of this combination. (3) 1 The circuit shows a combination of three resistors. 22 Ω 47 Ω 620 Ω Calculate the total resistance of this combination. Total resistance = (Total for Question = 3 marks) 2 (a) Sketch a graph to show

More information

Electrodynamics. Review 8

Electrodynamics. Review 8 Unit 8 eview: Electrodynamics eview 8 Electrodynamics 1. A 9.0 V battery is connected to a lightbulb which has a current of 0.5 A flowing through it. a. How much power is delivered to the b. How much energy

More information

Revision checklist SP10. SP10 Electricity and Circuits. SP10a Electric circuits. SP10b Current and potential difference

Revision checklist SP10. SP10 Electricity and Circuits. SP10a Electric circuits. SP10b Current and potential difference Electricity and Circuits a Electric circuits Describe the basic structure of an atom (positions, relative masses and relative charges of protons, neutrons and electrons). Recognise the circuit symbols

More information

15 - THERMAL AND CHEMICAL EFFECTS OF CURRENTS Page 1 ( Answers at the end of all questions )

15 - THERMAL AND CHEMICAL EFFECTS OF CURRENTS Page 1 ( Answers at the end of all questions ) 5 - THERMAL AND CHEMICAL EFFECTS OF CURRENTS Page A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be four times doubled halved ( d one-fourth

More information

ELECTRICITY UNIT REVIEW

ELECTRICITY UNIT REVIEW ELECTRICITY UNIT REVIEW S1-3-04: How does the Atomic Model help to explain static electricity? 1. Which best describes static electricity? a) charges that can be collected and held in one place b) charges

More information

Electricity Test Review

Electricity Test Review Electricity Test Review Definitions; Series Circuit, Parallel Circuit, Equivalent Resistance, Fuse, Circuit Breaker, kilowatt hour, load, short circuit, dry cell, wet cell, fuel cells, solar cells, fossil

More information

ELECTRIC CIRCUITS. Checklist. Exam Questions

ELECTRIC CIRCUITS. Checklist. Exam Questions ELECTRIC CIRCUITS Checklist Make sure you can. State Ohm's law in words. Determine relationship between current, potential difference and resistance at constant temperature using a simple circuit Draw,

More information

Test Review Electricity

Test Review Electricity Name: Date: 1. An operating television set draws 0.71 ampere of current when connected to a 120-volt outlet. Calculate the time it takes the television to consume 3.0 10 5 joules of electric energy. [Show

More information

Electricity. dronstudy.com

Electricity. dronstudy.com Electricity Electricity is a basic part of our nature and it is one of our most widely used forms of energy. We use electricity virtually every minute of every day for example in lighting, heating, refrigeration,

More information

ELECTRICITY. Prepared by: M. S. KumarSwamy, TGT(Maths) Page

ELECTRICITY. Prepared by: M. S. KumarSwamy, TGT(Maths) Page ELECTRICITY 1. Name a device that helps to maintain a potential difference across a conductor. Cell or battery 2. Define 1 volt. Express it in terms of SI unit of work and charge calculate the amount of

More information

Circuits-Ohm's Law. 1. Which graph best represents the relationship between the electrical power and the current in a resistor that obeys Ohm s Law?

Circuits-Ohm's Law. 1. Which graph best represents the relationship between the electrical power and the current in a resistor that obeys Ohm s Law? 1. Which graph best represents the relationship between the electrical power and the current in a resistor that obeys Ohm s Law? 2. A potential drop of 50 volts is measured across a 250- ohm resistor.

More information

Downloaded from

Downloaded from CHAPTER 12 ELECTRICITY Electricity is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena such

More information

Name: Class: Date: 1. Friction can result in the transfer of protons from one object to another as the objects rub against each other.

Name: Class: Date: 1. Friction can result in the transfer of protons from one object to another as the objects rub against each other. Class: Date: Physics Test Review Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. Friction can result in

More information

Closed loop of moving charges (electrons move - flow of negative charges; positive ions move - flow of positive charges. Nucleus not moving)

Closed loop of moving charges (electrons move - flow of negative charges; positive ions move - flow of positive charges. Nucleus not moving) Unit 2: Electricity and Magnetism Lesson 3: Simple Circuits Electric circuits transfer energy. Electrical energy is converted into light, heat, sound, mechanical work, etc. The byproduct of any circuit

More information

11. ELECTRIC CURRENT. Questions and Answers between the forces F e and F c. 3. Write the difference between potential difference and emf. A.

11. ELECTRIC CURRENT. Questions and Answers between the forces F e and F c. 3. Write the difference between potential difference and emf. A. CLSS-10 1. Explain how electron flow causes electric current with Lorentz-Drude theory of electrons?. Drude and Lorentz, proposed that conductors like metals contain a large number of free electrons while

More information

CHAPTER INTRODUCTION TO ELECTRIC CIRCUITS. C h a p t e r INTRODUCTION

CHAPTER INTRODUCTION TO ELECTRIC CIRCUITS. C h a p t e r INTRODUCTION C h a p t e r CHAPTE NTODUCTON TO ELECTC CCUTS.0 NTODUCTON This chapter is explaining about the basic principle of electric circuits and its connections. The learning outcome for this chapter are the students

More information

Conceptual Physical Science 6 th Edition

Conceptual Physical Science 6 th Edition Conceptual Physical Science 6 th Edition Chapter 8: STATIC AND CURRENT ELECTRICITY 1 Chapter 8: STATIC AND CURRENT ELECTRICITY Chapter 8: Read: All Homework: Four problems from the following set: 4, 6,

More information

Study Guide. Science 3103 Electricity. Adult Basic Education Science. Prerequisite: Science Credit Value: 1

Study Guide. Science 3103 Electricity. Adult Basic Education Science. Prerequisite: Science Credit Value: 1 Adult Basic Education Science Electricity Study Guide Prerequisite: Science 3102 Credit Value: 1 Text: Nelson Physics 12: College Preparation; Hirsch, Alan J.; Nelson Thomson Canada; 2004. Science Courses

More information

Science Practice Exam. Chapters 5 and 14

Science Practice Exam. Chapters 5 and 14 Science Practice Exam Chapters 5 and 14 FORMULAS Science and Technology FORMULAS C: concentration m: quantity of solute v: quantity of solution V: potential difference R: resistance I: electric current

More information

Chapter 4. Chapter 4

Chapter 4. Chapter 4 Chapter 4 Energy 1 n Energy, W, is the ability to do work and is measured in joules. One joule is the work done when a force of one newton is applied through a distance of one meter. The symbol for energy,

More information

earth live neutral (ii) What is the colour of the insulation around the wire labelled T? blue brown green and yellow

earth live neutral (ii) What is the colour of the insulation around the wire labelled T? blue brown green and yellow Q. (a) The diagram shows the inside of a three-pin plug. What name is given to the wire labelled S? Draw a ring around the correct answer. earth live neutral () What is the colour of the insulation around

More information

Which of these particles has an electrical charge?

Which of these particles has an electrical charge? Which of these particles has an electrical charge? A. Proton. B. Electron. C. Ion. D. All of the above. Which is the predominant carrier of charge in copper wire? A. Proton. B. Electron. C. Ion. D. All

More information

CHAPTER ONE. 1.1 International System of Units and scientific notation : Basic Units: Quantity Basic unit Symbol as shown in table 1

CHAPTER ONE. 1.1 International System of Units and scientific notation : Basic Units: Quantity Basic unit Symbol as shown in table 1 CHAPTER ONE 1.1 International System of Units and scientific notation : 1.1.1 Basic Units: Quantity Basic unit Symbol as shown in table 1 Table 1 1.1.2 Some scientific notations : as shown in table 2 Table

More information

Electron Theory of Charge. Electricity. 1. Matter is made of atoms. Refers to the generation of or the possession of electric charge.

Electron Theory of Charge. Electricity. 1. Matter is made of atoms. Refers to the generation of or the possession of electric charge. Electricity Refers to the generation of or the possession of electric charge. There are two kinds of electricity: 1. Static Electricity the electric charges are "still" or static 2. Current Electricity

More information

7.1 ANALYSING ELECTRIC FIELDS AND CHARGE FLOW

7.1 ANALYSING ELECTRIC FIELDS AND CHARGE FLOW 7.1 ANALYSING ELECTRIC FIELDS AND CHARGE FLOW State the relationship between electron and electric current Where does charge come from? Matter is made up of tiny particles called atoms. At the center of

More information

Review. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Review. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. When more devices are added to a series circuit, the total circuit resistance: a.

More information

10 N acts on a charge in an electric field of strength 250 N.C What is the value of the charge?

10 N acts on a charge in an electric field of strength 250 N.C What is the value of the charge? Year 11 Physics Electrical Energy in the Home Name: 1. Draw the electric field lines around a) a single positive charge b) between two opposite charged bodies c) two parallel plates + + + + + + + - - -

More information

Trade of Electrician. Power and Energy

Trade of Electrician. Power and Energy Trade of Electrician Standards Based Apprenticeship Power and Energy Phase 2 Module No. 2.1 Unit No. 2.1.6 COURSE NOTES SOLAS Electrical Course Notes - Unit 2.1.6 Created by Gerry Ryan - Galway TC Revision

More information

Greek Letter Omega Ω = Ohm (Volts per Ampere)

Greek Letter Omega Ω = Ohm (Volts per Ampere) ) What is electric current? Flow of Electric Charge 2) What is the unit we use for electric current? Amperes (Coulombs per Second) 3) What is electrical resistance? Resistance to Electric Current 4) What

More information

8. Electric circuit: The closed path along which electric current flows is called an electric circuit.

8. Electric circuit: The closed path along which electric current flows is called an electric circuit. GIST OF THE LESSON 1. Positive and negative charges: The charge acquired by a glass rod when rubbed with silk is called positive charge and the charge acquired by an ebonite rod when rubbed with wool is

More information

6. In a dry cell electrical energy is obtained due to the conversion of:

6. In a dry cell electrical energy is obtained due to the conversion of: 1. If a wire of uniform area of cross section is cut into two halves (equal in size), the resistivity of each part will be: a) Halved. b) Doubled. c) Becomes four times its initial value. d) Remains the

More information

LESSON 5: ELECTRICITY II

LESSON 5: ELECTRICITY II LESSON 5: ELECTRICITY II The first two points are a review of the previous lesson 1.1.ELECTRIC CHARGE - Electric charge is a property of all objects and is responsible for electrical phenomena. -All matter

More information

4.2.1 Current, potential difference and resistance

4.2.1 Current, potential difference and resistance 4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design

More information

Information for Makeup exam is posted on the course website.

Information for Makeup exam is posted on the course website. Information for Makeup exam is posted on the course website. Three resistors are connected to a 6-V battery as shown. The internal resistance of the battery is negligible. What is the current through the

More information

Chapter 3. Chapter 3

Chapter 3. Chapter 3 Chapter 3 Review of V, I, and R Voltage is the amount of energy per charge available to move electrons from one point to another in a circuit and is measured in volts. Current is the rate of charge flow

More information

Insulators Non-metals are very good insulators; their electrons are very tightly bonded and cannot move.

Insulators Non-metals are very good insulators; their electrons are very tightly bonded and cannot move. SESSION 11: ELECTRIC CIRCUITS Key Concepts Resistance and Ohm s laws Ohmic and non-ohmic conductors Series and parallel connection Energy in an electric circuit X-planation 1. CONDUCTORS AND INSULATORS

More information

Current Electricity.notebook. December 17, 2012

Current Electricity.notebook. December 17, 2012 1 Circuit Diagrams and Assembly 1. Draw a circuit diagram containing a battery, a single throw switch, and a light. 2. Once the diagram has been checked by your teacher, assemble the circuit. Keep the

More information

Chapter 21 Electric Current and Circuits

Chapter 21 Electric Current and Circuits Chapter 21 Electric Current and Circuits 1 As an introduction to this chapter you should view the following movie. If you cannot click on the link, then copy it and paste it into your web browser. http://www.ionaphysics.org/movies/vir.mp4

More information

CURRENT ELECTRICITY Q.1

CURRENT ELECTRICITY Q.1 CUENT EECTCTY Q. Define Electric current an its unit.. Electric Current t can be efine as the time rate of flow of charge in a conuctor is calle Electric Current. The amount of flow of charge Q per unit

More information

4.2.1 Current, potential difference and resistance Standard circuit diagram symbols. Content. Key opportunities for skills development WS 1.

4.2.1 Current, potential difference and resistance Standard circuit diagram symbols. Content. Key opportunities for skills development WS 1. 4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design

More information

670 Intro Physics Notes: Electric Current and Circuits

670 Intro Physics Notes: Electric Current and Circuits Name: Electric Current Date: / / 670 Intro Physics Notes: Electric Current and Circuits 1. Previously, we learned about static electricity. Static electricity deals with charges that are at rest. 2. Now

More information

Electricity Final Unit Final Assessment

Electricity Final Unit Final Assessment Electricity Final Unit Final Assessment Name k = 1/ (4pe 0 ) = 9.0 10 9 N m 2 C -2 mass of an electron = 9.11 10-31 kg mass of a proton = 1.67 10-27 kg G = 6.67 10-11 N m 2 kg -2 C = 3 x10 8 m/s Show all

More information

Electricity Questions Part 2

Electricity Questions Part 2 Electricity Questions Part 2 35 Questions Name: Class: Date: Time: Marks: Comment s: Q. (a) The diagram shows the traces produced on an oscilloscope when it is connected across different electricity supplies.

More information

Chapter.16 / Section.1: Electric Charge. Q=Ne Total Charge=number of electrons transferred fundamental charge

Chapter.16 / Section.1: Electric Charge. Q=Ne Total Charge=number of electrons transferred fundamental charge Revision Sheet for the Final Exam Academic Year: 2018/2019 First Term Subject: Physics Grade: 12 Student s name:. Date: 26/11/2017 Required Material: Chapter 16: Electric Forces and Fields, Sections: (1,

More information

Current, Charge and Power

Current, Charge and Power Current, Charge and Power Match up the electrical quan66es, with their abbrevia6ons and units. I V E power ampere Ω Energy Ohms Voltage volts resistance waas joule P current Can you provide any defini6ons

More information

Name... Class... Date...

Name... Class... Date... The power of lamps Specification references: P2.4.1 Power P2.4.2 Energy transfers in everyday appliances (part) MS 1a, 2a, 3b, 3c, 3d WS 1.2, 2.6, 3.1, 3.3 Aims In this practical, you will observe the

More information

Standard circuit diagram symbols Content Key opportunities for skills development

Standard circuit diagram symbols Content Key opportunities for skills development 4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design

More information

Use these circuit diagrams to answer question 1. A B C

Use these circuit diagrams to answer question 1. A B C II Circuit Basics Use these circuit diagrams to answer question 1. B C 1a. One of the four voltmeters will read 0. Put a checkmark beside it. b. One of the ammeters is improperly connected. Put a checkmark

More information

Physics Module Form 5 Chapter 2- Electricity GCKL 2011 CHARGE AND ELECTRIC CURRENT

Physics Module Form 5 Chapter 2- Electricity GCKL 2011 CHARGE AND ELECTRIC CURRENT 2.1 CHARGE AND ELECTRIC CURRENT Van de Graaf 1. What is a Van de Graaff generator? Fill in each of the boxes the name of the part shown. A device that... and... at high voltage on its dome. dome 2. You

More information

Static Electricity. Electric Field. the net accumulation of electric charges on an object

Static Electricity. Electric Field. the net accumulation of electric charges on an object Static Electricity the net accumulation of electric charges on an object Electric Field force exerted by an e - on anything that has an electric charge opposite charges attract like charges repel Static

More information

Lesson Plan: Electric Circuits (~130 minutes) Concepts

Lesson Plan: Electric Circuits (~130 minutes) Concepts Lesson Plan: Electric Circuits (~130 minutes) Concepts 1. Electricity is the flow of electric charge (electrons). 2. Electric Charge is a property of subatomic particles. 3. Current is the movement of

More information

Section 1 Electric Charge and Force

Section 1 Electric Charge and Force CHAPTER OUTLINE Section 1 Electric Charge and Force Key Idea questions > What are the different kinds of electric charge? > How do materials become charged when rubbed together? > What force is responsible

More information

What is an Electric Current?

What is an Electric Current? Electric Circuits NTODUCTON: Electrical circuits are part of everyday human life. e.g. Electric toasters, electric kettle, electric stoves All electrical devices need electric current to operate. n this

More information

AP Physics Electricity and Magnetism #3 Capacitors, Resistors, Ohm s Law, Electric Power

AP Physics Electricity and Magnetism #3 Capacitors, Resistors, Ohm s Law, Electric Power Name Period AP Physics Electricity and Magnetism #3 Capacitors, Resistors, Ohm s Law, Electric Power Dr. Campbell 1. The two plates of a capacitor hold +2500 µc and -2500 µc of charge, respectively, when

More information

What is electricity? Charges that could be either positive or negative and that they could be transferred from one object to another.

What is electricity? Charges that could be either positive or negative and that they could be transferred from one object to another. Electricity What is electricity? Charges that could be either positive or negative and that they could be transferred from one object to another. What is electrical charge Protons carry positive charges

More information

9. Which of the following is the correct relationship among power, current, and voltage?. a. P = I/V c. P = I x V b. V = P x I d.

9. Which of the following is the correct relationship among power, current, and voltage?. a. P = I/V c. P = I x V b. V = P x I d. Name: Electricity and Magnetism Test Multiple Choice Identify the choice that best completes the statement. 1. Resistance is measured in a unit called the. a. ohm c. ampere b. coulomb d. volt 2. The statement

More information

Resistivity and Temperature Coefficients (at 20 C)

Resistivity and Temperature Coefficients (at 20 C) Homework # 4 Resistivity and Temperature Coefficients (at 0 C) Substance Resistivity, Temperature ( m) Coefficient, (C ) - Conductors Silver.59 x 0-0.006 Copper.6 x 0-0.006 Aluminum.65 x 0-0.0049 Tungsten

More information

Chapter 17 Electric Current and Resistance Pearson Education, Inc.c

Chapter 17 Electric Current and Resistance Pearson Education, Inc.c Chapter 17 Electric Current and Resistance 2010 Pearson Education, Inc.c 1 Units of Chapter 17 Batteries and Direct Current Current and Drift Velocity Resistance and Ohm s Law Electric Power 2010 Pearson

More information

52 VOLTAGE, CURRENT, RESISTANCE, AND POWER

52 VOLTAGE, CURRENT, RESISTANCE, AND POWER 52 VOLTAGE, CURRENT, RESISTANCE, AND POWER 1. What is voltage, and what are its units? 2. What are some other possible terms for voltage? 3. Batteries create a potential difference. The potential/voltage

More information

ELECTRICITY Electric Fence Experiment.

ELECTRICITY Electric Fence Experiment. ELECTRICITY Electric Fence Experiment. Can you guess what will happen? What would life be like without electricity? List 4 things that you would miss the most: 1) 2) 3) 4) Positive and Negative Charge

More information

Unit 3 BLM Answers UNIT 3 BLM 3-46

Unit 3 BLM Answers UNIT 3 BLM 3-46 UNIT 3 BLM 3-46 Unit 3 BLM Answers BLM 3-3, Charge Transfer Diagrams 1. Positively charged objects should have more (+) than ( ). Negatively charged objects should have more ( ) than (+). 2. They must

More information

NATIONAL 5 PHYSICS ELECTRICITY

NATIONAL 5 PHYSICS ELECTRICITY NATIONAL 5 PHYSICS ELECTRICITY ELECTRICAL CHARGE CARRIERS AND CURRENT Electrical Charge Electrical charge exists in two distinct types positive charge and negative charge. It is also possible for an object

More information

SECONDARY SCHOOLS ANNUAL EXAMINATIONS 2005 Educational Assessment Unit Education Division. FORM 4 PHYSICS Time: 1 hr. 30 min.

SECONDARY SCHOOLS ANNUAL EXAMINATIONS 2005 Educational Assessment Unit Education Division. FORM 4 PHYSICS Time: 1 hr. 30 min. SECONDARY SCHOOLS ANNUAL EXAMINATIONS 2005 Educational Assessment Unit Education Division FORM 4 PHYSICS Time: 1 hr. 30 min. NAME: CLASS Answer all the questions in the spaces provided on the Exam Paper.

More information

Chapter 7. Electricity. Teacher Answer Key. Broughton High School of Wake County

Chapter 7. Electricity. Teacher Answer Key. Broughton High School of Wake County Teacher Answer Key Broughton High School of Wake County 1 Chapter 7 Electricity Physical Science Vocabulary 2 Vocabulary for Chapter 7 Electricity Vocabulary Word Definition 1. Charging by Contact 2. Charging

More information

ENGI 1040: ELECTRIC CIRCUITS Winter Part I Basic Circuits

ENGI 1040: ELECTRIC CIRCUITS Winter Part I Basic Circuits 1. Electric Charge ENGI 1040: ELECTRIC CIRCUITS Winter 2018 Part I Basic Circuits atom elementary unit of a material which contains the properties of that material can be modeled as negatively charged

More information

Equivalent resistance in Series Combination

Equivalent resistance in Series Combination Combination of Resistances There are two methods of joining the resistors together. SERIES CONNECTION An electric circuit in which three resistors having resistances R1, R2 and R3, respectively, are joined

More information

Electricity Review completed.notebook. June 13, 2013

Electricity Review completed.notebook. June 13, 2013 Which particle in an atom has no electric charge associated with it? a. proton c. neutron b. electron d. nucleus Jun 12 9:28 PM The electrons in a metal sphere can be made to move by touching it with a

More information

(b) State the relation between work, charge and potential difference for an electric circuit.

(b) State the relation between work, charge and potential difference for an electric circuit. Question Bank on Ch-Electricity 1. (a) Define the S.I unit of potential difference. (b) State the relation between work, charge and potential difference for an electric circuit. Calculate the potential

More information

Physics Module Form 5 Chapter 2- Electricity GCKL 2011 CHARGE AND ELECTRIC CURRENT

Physics Module Form 5 Chapter 2- Electricity GCKL 2011 CHARGE AND ELECTRIC CURRENT 2.1 CHARGE AND ELECTRIC CURRENT Van de Graaf 1. What is a Van de Graaff generator? Fill in each of the boxes the name of the part shown. A device that produces and store electric charges at high voltage

More information

Electrical Circuits. Winchester College Physics. makptb. c D. Common Time man. 3rd year Revision Test

Electrical Circuits. Winchester College Physics. makptb. c D. Common Time man. 3rd year Revision Test Name... Set... Don.... manner~ man makptb Winchester College Physics 3rd year Revision Test Electrical Circuits Common Time 2011 Mark multiple choice answers with a cross (X) using the box below. I A B

More information

1. What is heating effect of current? What is its cause?

1. What is heating effect of current? What is its cause? GRADE: X PHYSICS (ELECTRICITY) DOMESTIC ELECTRIC CIRCUITS: SERIES OR PARALLEL Disadvantages of series circuits for domestic wiring : In series circuit, if one electrical appliance stops working, due to

More information

STUDY GUIDE CHAPTER 5 ELECTRICITY AND MAGNETISM 1) ASSOCIATE ELEMENTARY PARTICLES WITH THEIR ELECTRICAL CHARGE

STUDY GUIDE CHAPTER 5 ELECTRICITY AND MAGNETISM 1) ASSOCIATE ELEMENTARY PARTICLES WITH THEIR ELECTRICAL CHARGE Name Date STUDY GUIDE CHAPTER 5 ELECTRICITY AND MAGNETISM 1) ASSOCIATE ELEMENTARY PARTICLES WITH THEIR ELECTRICAL CHARGE Scientists now know that an atom is composed of even smaller particles of matter:

More information

PHYSICS 570 Master's of Science Teaching. Instructor Richard Sonnenfeld

PHYSICS 570 Master's of Science Teaching. Instructor Richard Sonnenfeld 1 PHYSICS 570 Master's of Science Teaching 1 Electricity Lecture 10 Current, Power, Resistance, and Ohm's Law. Instructor Richard Sonnenfeld mpsonnenfeld@gmail.com 575 835 6434 Big ideas If you know Voltage,

More information

G E F D. 1. The diagram shows an electronic circuit. Write down the names of the components in the list below. A =... B =... C =... D =...

G E F D. 1. The diagram shows an electronic circuit. Write down the names of the components in the list below. A =... B =... C =... D =... 1. The diagram shows an electronic circuit. + 9 V G E A F D B C 0 V (a) Write down the names of the components in the list below. A =... B =... C =... D =... E, F and G =... (5) watford grammar school

More information

https://www.youtube.com/watch?v=yc2-363miqs

https://www.youtube.com/watch?v=yc2-363miqs https://www.youtube.com/watch?v=yc2-363miqs SCIENCE 9 UNIT 3 ELECTRICITY Remember: In the last unit we learned that all matter is made up of atoms atoms have subatomic particles called, protons, neutrons

More information

STATEWIDE CAREER/TECHNICAL EDUCATION COURSE ARTICULATION REVIEW MINUTES

STATEWIDE CAREER/TECHNICAL EDUCATION COURSE ARTICULATION REVIEW MINUTES STATEWIDE CAREER/TECHNICAL EDUCATION COURSE ARTICULATION REVIEW MINUTES Articulation Agreement Identifier: _ELT 107/ELT 108 (2011-1) Plan-of-Instruction version number (e.g.; INT 100 (2007-1)). Identifier

More information

Electric current is a flow of electrons in a conductor. The SI unit of electric current is ampere.

Electric current is a flow of electrons in a conductor. The SI unit of electric current is ampere. C h a p t e r at G l a n c e 4. Electric Current : Electric current is a flow of electrons in a conductor. The SI unit of electric current is ampere. Current = Charge time i.e, I = Q t The SI unit of charge

More information

National 5 Physics. Electricity and Energy. Notes

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

More information

SECONDARY SCHOOL ANNUAL EXAMINATIONS 2002 Educational Assessment Unit - Education Division

SECONDARY SCHOOL ANNUAL EXAMINATIONS 2002 Educational Assessment Unit - Education Division SECONDARY SCHOOL ANNUAL EXAMINATIONS 2002 Educational Assessment Unit - Education Division FORM 4 PHYSICS TIME: 1 hr 30 min NAME: CLASS: Answer all the questions in the spaces provided on the Examination

More information

Note on Posted Slides. Flow of Charge. Electricity/Water Analogy: Continuing the Analogy. Electric Current

Note on Posted Slides. Flow of Charge. Electricity/Water Analogy: Continuing the Analogy. Electric Current Note on Posted Slides These are the slides that I intended to show in class on Tue. Mar. 18, 2014. They contain important ideas and questions from your reading. Due to time constraints, I was probably

More information

DC Circuits. Circuits and Capacitance Worksheet. 10 Ω resistance. second? on the sodium is the same as on an electron, but positive.

DC Circuits. Circuits and Capacitance Worksheet. 10 Ω resistance. second? on the sodium is the same as on an electron, but positive. Circuits and Capacitance Worksheet DC Circuits 1. A current of 1.30 A flows in a wire. How many electrons are flowing past any point in the wire per second? 2. What is the current in amperes if 1200 Na

More information

Electric Current. Chapter. Activity 1

Electric Current. Chapter. Activity 1 Chapter 11 n previous classes, you had learnt about electric current, battery, electric circuit and its components. What do you mean by electric current? Which type of charge (positive or negative) flows

More information

New Year 12 Students

New Year 12 Students New Year 12 Students As you may be aware there have been many changes to the way A-Levels are run in most subjects and science specifically has seen major changes. Here is a brief outline of the course:

More information

!E = (60.0 W)( s) = 6.48 " 10 5 Wi s!e = 6.48 " 10 5 J (one extra digit carried)

!E = (60.0 W)( s) = 6.48  10 5 Wi s!e = 6.48  10 5 J (one extra digit carried) Chapter Review, pages 40 4 Knowledge. (b). (b) 3. (c) 4. (d). (b) 6. (c) 7. (a) 8. (d) 9. (c) 0. True. False. Carbon capture and storage is a technology that captures carbon dioxide leaving the smokestack,

More information

PHY2F (JAN08PHY2F01) General Certifi cate of Secondary Education January ADDITIONAL SCIENCE Unit Physics P2. PHYSICS Unit Physics P2

PHY2F (JAN08PHY2F01) General Certifi cate of Secondary Education January ADDITIONAL SCIENCE Unit Physics P2. PHYSICS Unit Physics P2 Surname Other Names For Examiner s Use Centre Number Candidate Number Candidate Signature General Certifi cate of Secondary Education January 2008 ADDITIONAL SCIENCE Unit Physics P2 PHYSICS Unit Physics

More information

Electricity CHAPTER ELECTRIC CURRENT AND CIRCUIT

Electricity CHAPTER ELECTRIC CURRENT AND CIRCUIT CHAPTER 12 Electricity Electricity has an important place in modern society. It is a controllable and convenient form of energy for a variety of uses in homes, schools, hospitals, industries and so on.

More information

Electroscope Used to are transferred to the and Foil becomes and

Electroscope Used to are transferred to the and Foil becomes and Electricity Notes Chapter 17 Section 1: Electric Charge and Forces Electric charge is a variety of independent all with one single name. Electricity is related to, and both (-) and (+) carry a charge.

More information

CHARGE AND ELECTRIC CURRENT:

CHARGE AND ELECTRIC CURRENT: ELECTRICITY: CHARGE AND ELECTRIC CURRENT ELECTRIC CHARGE ELECTRIC CURRENT ELECTRIC CIRCUIT DEFINITION AND COMPONENTS EFFECTS OF ELECTRIC CURRENT TYPES OF CIRCUITS ELECTRIC QUANTITIES VOLTAGE CURRENT RESISTANCE

More information

YEAR 11- Physics Term 1 plan

YEAR 11- Physics Term 1 plan YEAR 11- Physics Term 1 plan 2016-2017 Week Topic Learning outcomes Week 1 5.1.2 Nucleus of the Atom Describe the composition of the nucleus in terms of protons and neutrons State the charges of protons

More information

K.TEJPAL SINGH TGT SCI KV RAJKOT

K.TEJPAL SINGH TGT SCI KV RAJKOT High Ordered Thinking Skills Electricity 1. What is the difference between a conductor and an insulator? 2. What is the difference between open and closed circuits? Draw diagrams for both. 3. Define parallel

More information

MITES Middle School Introduction To Engineering Systems

MITES Middle School Introduction To Engineering Systems MITES Middle School Introduction To Engineering Systems 2 Expectations for Behavior Be Respectful To teacher, To Peers, To Facilities Follow 1 st Request From Teachers or Peers Golden Rule Treat others

More information

A Review of Circuitry

A Review of Circuitry 1 A Review of Circuitry There is an attractive force between a positive and a negative charge. In order to separate these charges, a force at least equal to the attractive force must be applied to one

More information

National 5 Physics. Language Wikipedia. Electricity

National 5 Physics. Language Wikipedia. Electricity National 5 Physics Catlin.Fatu@English Language Wikipedia Electricity Throughout the Course, appropriate attention should be given to units, prefixes and scientific notation. tera T 10 12 x 1,000,000,000,000

More information

The equation which links current, potential difference and resistance is:

The equation which links current, potential difference and resistance is: An electrical circuit is shown in the figure below. The current in the circuit is direct current. What is meant by direct current? Tick one box. Current that continuously changes direction. Current that

More information