MEDIUM
7th CBSE
IMPORTANT
Earn 100

Why does a clinical thermometer has a kink or a constriction in it? 

Important Questions on Temperature and Heat

HARD
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 1
What precautions should be taken while using a laboratory thermometer and a clinical thermometer? 
 
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 5 - Temperature and Heat>Exercises>Q 2
Explain why do gases expand more than solids on heating. 
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. 

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