1. . The total kinetic energy of all the molecules of a body is called:
(A) Temperature
(B) Thermal energy
(C) Heat
(D) Calorie
2. . The average kinetic energy of all the molecules of a body is called:
(A) Heat
(B) Temperature
(C) Momentum
(D) Internal energy
3. . The unit of heat is:
(A) Kelvin
(B) Centigrade
(C) Fahrenheit
(D) Calorie
4. . One Calorie is equal to:
(A) 4.18 Joule
(B) 252 Joule
(C) 746 Watt
(D) 252 B.T.U
5. . The amount of heat required to raise the temperature of a substance through one degree centigrade is called its:
(A) Heat of fusion
(B) Heat of vaporization
(C) Latent Heat
(D) Specific Heat
6. . Specific heat of water is equal to:
(A) 4200 J/kg
(B) 1000 J/kg
(C) 4.2 J/kg
(D) 420 J/kg
7. . The S.I unit of temperature is:
(A) Fahrenheit
(B) Kelvin
(C) Centigrade
(D) Calorie
8. . 0 K is equal to:
(A) 273°C
(B) 273°F
(C) –273°C
(D) –273°F
9. . According to Boyle’s law:
(A) V ∝ T
(B) V ∝ P
(C) V = constant
(D) V ∝ 1/P
10. . According to Charles’ law:
(A) V ∝ T
(B) V ∝ P
(C) V = constant
(D) V ∝ 1/T
11. . The relationship between coefficient of linear expansion (α) and coefficient of volumetric expansion (β) is:
(A) β = α
(B) β = 2α
(C) β = 3α
(D) β = α/3
12. . The instrument used to measure humidity is called:
(A) Barometer
(B) Thermometer
(C) Hygrometer
(D) Hydrometer