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CTET Prep: Science Questions - Physics - Heat
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In thermodynamics, heat is the thermal energy transferred between systems due to a temperature difference. In colloquial use, heat sometimes refers to thermal energy itself. Thermal energy is the kinetic energy of vibrating and colliding atoms in a substance.

CTET Prep: Science Questions - Physics - Heat
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25 Questions

1. A glass container cracks when very hot tea is poured into it. A probable reason for this is the
2. A body cools from 60°C to 50°C in 10 minutes when kept in air at 30°C. In the next 10 minutes its temperature will be
3. At a given volume and temperature, the pressure of a gas
4. Freezing mixture is a mixture
5. Paraffin wax contracts on solidification the melting point of wax
6. If the temperature inside a room is increased, the relative humidity will
7. A gas behaves as an ideal gas more closely at
8. When water is heated from 0°C to 10°C its volume
9. The temperature of water at the bottom of a waterfall is higher than that at the top because
10. The best conductor of heat among the following is
11. Temperature can be expressed as a derived quantity in terms of
12. At normal temperature, due to a puncture, the compressed air inside the tube of a car wheel suddenly starts coming out. Then, the air inside the tube
13. The change of a solid into vapour directly is called
14. The thermal conductivity of a plate depends on
15. Woollen clothes keep the body warm because
16. Heat capacity of substance is infinite. It means
17. Choose the correct statement
18. Some quantity of water at room temperature is placed in an open pan and allowed to evaporate. After sometime the temperature of water
19. A solid metal ball has a spherical cavity. If the ball is heated, the volume of the cavity will
20. A gas in a metallic cylinder is suddenly compressed by a piston which is maintained at the same position with the passage of time the pressure of air
21. A piece of blue glass heated to a high temperature and piece of red glass at room temperature are taken inside dimly-lit room. Then,
22. If the atmospheric temperature and the due point are nearly equal then
23. Which of the following is the example of ideal black body?
24. A block of steel heated to 100°C is left in a room to cool. Which of the curves shown in the figure represents the decrease of temperature with time? temperature Time A B C
25. If the thermal capacity of a body is infinite, then

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