MEDIUM
7th Chhattisgarh Board
IMPORTANT
Earn 100

What are conductors and insulators of heat? Give two examples of each. 

Important Questions on Transfer of Heat

MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 2
A water tank is cool in summer while it is hot in winters, why?
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 3
How does a blanket keep you warm in winter nights if it not a source of heat?
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 4
Why do birds sit with their wings spread out in winters?
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 2
Why are the chimneys of factories where coal is burnt made very tall?
EASY
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 1
The energy received from the sun has more heat while the energy received from the moon has negligible heat. Why?
EASY
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 2
People like to wear white clothes in summer. Why?
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 3
The air between the double-layered bottles is evacuated. Explain this fact related to how a thermos flask is constructed.
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 8 - Transfer of Heat>Answer these>Q 3
Both the layers of the double-layered bottle are painted silver. Explain this fact related to how a thermos flask is constructed.