MEDIUM
7th CBSE
IMPORTANT
Earn 100

Explain why do gases expand more than solids on heating. 

Important Questions on Temperature and Heat

MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 3
Why does a thermos flask have a vacuum between its walls, is shiny inside and has a narrow neck to pour liquids?
HARD
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 4
With the help of an experiment, explain how the heat is conducted from the heated end of the rod to its other end. 
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 5
Solar heaters are devices that are non-polluting sources of energy. Why are their surfaces painted black? 
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 6
Explain with the help of an experiment that convection occurs in liquids. 
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 7
What kind of clothes should we wear in summer and winter? Why? 
HARD
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Picture-Based Questions

Look at the given picture and label it. Also, mention the process by which heat is being transferred. 

Question Image

MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 1
Can we use a clinical thermometer to measure the temperature of boiling water? Why or why not? 
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 2
Why is it advised to paint the outer walls of the houses present in hot regions using white or light colours?