SY 2018/2019 1 st Final Term Revision Student s Name: Grade: 10A Subject: Physics Teacher Signature
Question 1 : Choose the correct answer : 1)Which of the following object will float in a tub of mercury? a) Solid Gold bead b) Ice Cube c)solid Siler Bead d) Crown 2)The unit of pressure is. a) Newton b) Pascal c)constant d)non-turbulent 3) The ideal fluid is also called a) Laminar fluid b)turbulent fluid c)constant Non-turbulent\ 4)The pressure in a fluid decreases as the fluid s velocity increases. a)pascal law b) Bernoulli s principal c) Convection d)convection
5)What is the fluid pressure as a function of depth. a) p= p n +pgh b) p= pp n -pgh c) p= p uu / pgh d) p= p np * pgh 6)Energy is transferred by terminal conduction through collision a) particles b) atom c) energy d) object 7) The most common temperature scales are : a ) Energy, Celsius, Fahrenheit b) Heat, Celsius, Fahrenheit c) Fahrenheit, Kelvin, Celsius d) Fahrenheit, heat, kelvin Fill in the blanks : 1 ) Density is a measure of a quality in a given. 3) The object density is greater than the fluid density, the net force is. 4) A 1 V 1 and A 2 V 2 is a formula of equation. 5) The symbol U stands for. 6) Solids typically have the smallest coefficient of expansion values. 7) is the ice point of Fahrenheit.
8) is an experimental procedure used to measure the energy transferred from one sub to another as heat. 9) The heat capacity of water is. 10)Substances that rapidly transfer energy as a heat are called. 11) The other principal energy transfer mechanism is. 12)The melting point of water is. True and False 1) The weight if an object immersed in a fluid is not the object apparent weight. 2) Liquid have a definite volume, but gas do not have. 3) Gases are compressible and can have densities over a wide range of values. 4) The SI unit of mass density is N 5) Displaced volume of water means the actual volume of water. 6) Blaise Pascal introduces the Pascal principle. 7)Irregular Motion of fluid, called eddy currents. 8)Viscosity does not refers to the amount of internal friction with in a fluid. 9) Energies associated with atomic motion called internal energy. 10) Unit of temperature is Kelvin. Question and Answers : Q1) Define latent heat? _
Q3)What is calorimeter? Q4)Draw a simple Calorimeter. Q5) Define specific heat capacity? Write the formula? Q6)Define the following terms? a) Thermal conduction b) Electromagnetic radiation
Q9 ) Draw transfer of Particle s Kinetic Energy as Heat at 5 o and 11 o C :\ Q10 ) What is heat? Q12) Write the formula for Celsius, Fahrenheit Temperature Conversion and Celsius- kelvin temperature conversion? Q13 ) Define Thermal equilibrium heat and internal energy? Q14 ) Write the continuity equation?
Q18 ) Write the formula for Buoyant force? Q 21: If a bottle of water shaken vigorously, will the internal energy of water change? why and why not? Numerical Problems : -)2.8 kg rectangular air mattress is 2.00 m long and 0.500 m wide, and 0.100m thick. What mass can it support in water before sinking? _ -)A ferry boat is 4.0m wide and 6.0 m long. When a truck pulls onto it, the boat sinks 4.00 cm in the water. What is the weight of the truck?
-)A 1.5 m wide by 2.5 m long water bed weighs 1025 N. Find the pressure that the water bed exerts on the floor. Assume that the entire lower surface of the bed makes contact with the floor. _ -)A 2.0 cm diameter faucet tap fills a 2.5 x 10-2 m container in 40.0 s. What is the speed at which the water leaves the faucet?
-) A natural gas pipeline with a diameter pf 0.520 m delivers 1.55m 3 of gas per second, What is the flow speed of the gas? _ -) A pan of water is heated from 23 o C to 78 o C. What is the range in it s temperature on the kelvin and Fahrenheit scales? _ -)Oxygen condenses into liquid at approximately 90.2 K. To what temperature does this correspond on both the Celsius and Fahrenheit temperature scales?
-)Brass is an alloy made from copper and zinc. A 0.59 kg brass sample at 98.0 0 C is dropped into 2.80kg of water at 5.0 0 C. If the equilibrium temperature is 6.8 0 C, What is the specific heat capacity of brass? _ -) Temperature of one northeastern state range from 105 0 F in the summer to -25 0 F in winter. Express tis temperature in degree Celsius.