Physics Practice: Heat (Mock Test 5 - Ultimate Comprehensive)
1. Heat is defined as energy in ________ due to temperature difference.
2. The normal temperature of a healthy human body on the Fahrenheit scale is:
3. A ________ is used to prevent the mercury level from falling on its own in a clinical thermometer.
4. Which of the following is the most effective method of heat transfer in a vacuum?
5. Solids expand ________ than liquids when heated through the same temperature range.
6. Water has its maximum density at ________.
7. A bimetallic strip is used in fire alarms because it ________ on heating.
8. Woolen clothes keep us warm in winter because wool is a poor conductor and ________ air.
9. The SI unit of heat capacity is ________.
10. During the change of state from liquid to solid, heat is ________.
11. A thermos flask prevents heat loss by conduction and convection using ________.
12. The boiling point of water on the Kelvin scale is ________.
13. In which of the following is heat transfer the fastest?
14. When we heat one end of a metal rod, the other end becomes hot due to ________.
15. Land breeze flows from ________ to ________.
16. Cooking utensils are often black at the bottom because black surfaces ________ more heat.
17. Heat energy is measured in Calories. $1 \text{ kcal}$ is equal to ________ $J$.
18. The process of vaporization that occurs only at the surface of a liquid is ________.
19. Which of the following has the highest specific heat capacity?
20. The increase in length of a solid on heating is called ________ expansion.