Dear Parents, CLASS 7 PHYSICS
Chapter : HEAT AND IT'S EFFECTS
Worksheet
1. Heat is a form of _________ .
2. Heat energy is also called as __________ energy.
3. Matter in all forms -solids , liquids or gas- ___________ in heating.
4. Heat flows from a region of __________ temperature to a region of
______temperature.
5. Railway tracks are constructed with gaps in the rails to allow the metal
rails to ________ due to the heat of summer and the heat generated by
________.
6. Can you suggest one more example in your daily life that uses the
principle of expansion of solids?
7. Cooking vessels should be made of ______ conductors.
8. Give one example where heat energy can be converted to other forms of
energy.
Regards, Principal
Answers
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Answer:
energy,2. thermal energy
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