Physics Practice: Heat & Energy (Mock Test 1 - Basic)
1. Heat is a form of energy that flows from a body at a higher temperature to a body at a lower temperature. Its S.I. unit is:
2. The degree of hotness or coldness of a body is called its:
3. $1\text{ calorie}$ is approximately equal to ________ Joules.
4. The S.I. unit of temperature is:
5. Anomalous expansion of water occurs between ________.
6. Water has maximum density at ________.
7. The transfer of heat in liquids and gases primarily takes place by:
8. Heat from the Sun reaches the Earth through:
9. Good absorbers of radiant heat are also ________ radiators of heat.
10. Energy possessed by a body by virtue of its motion is called:
11. The sum of kinetic and potential energy of a body is its total ________ energy.
12. A stretched rubber band possesses ________ energy.
13. Greenhouse effect is primarily caused by the trapping of ________ radiation.
14. Which of the following is a renewable source of energy?
15. The freezing point of pure water in Fahrenheit scale is:
16. When water freezes into ice, its volume ________.
17. A device used to convert light energy into electrical energy is:
18. During the change of state of a substance, the temperature ________.
19. Land breeze blows during the ________.
20. The law of conservation of energy states that energy can neither be created nor ________.