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Class 7 Science Chapter 3 Heat Quiz 13 (25 MCQs)

Quiz Instructions

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1. The word Latent means
2. A house burns down. The vinyl siding of the house next door warps due to
3. Convert:253 C to K:
4. A dryer heats clothes to dry by using .....
5. About 30% of the sun's incoming energy never reaches Earth because it is .....
6. During CONDUCTION heat is transferred by the movement of currents within a fluid.
7. Flow of heat by conduction is generally observed in case of
8. At A Campsite There Are Tents Of Three Shades. One Made With Black Fabric And Other Is White Fabric And One Is Black And White Combination. Which Will You Prefer For Resting On A Hot Summer Afternoon?
9. Air prevents ..... from our body to the .....
10. Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
11. In case of ..... the cool air moves from the land toward sea
12. Light coloured clothes absorb heat faster.
13. What is a reliable measure of the hotness of an object .....
14. The temperature scale on which water freezes at 0 and boils at 100
15. In class we put some candles on a medal spoon. We help one end of the spoon over a flame and watched the heat travel through the spoon and melt the candles on the other side. What kind of heat transfer was this?
16. Heat that is transferred because of touching is called .....
17. A puddle on a sidewalk would MOST LIKELY feel warm because .....
18. General effect of Heat is/are:
19. A device used to control the temperature
20. The flow of heat transfer creates a circular motion known as a convection current.
21. What is the unit in which temperature is commonly measured?
22. About 30% of the solar energy that reaches the atmosphere is reflected back into space. About 20% is absorbed by the air. What percentage reaches earth's surface?
23. It is the transfer of heat between substances that are in direct contact with each other.
24. Lisa has a bottle of water. How can she increase the thermal energy of the water?
25. The Law of Conservation of Energy states:
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