EASY
4th CBSE
IMPORTANT
Earn 100

What are the different effects of force?

Important Questions on Force, Work and Energy

MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>Assess Zone>Q F
Give five examples where force is applied and work is done.
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>Assess Zone>Q G
Name the different type of forces. Explain each by giving examples.
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>Assess Zone>Q G
What is work? What do you understand by ‘work done’? Explain.
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>Out of The Box>Q 1
What would happen if there is no frictional force?
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>Out of The Box>Q 2
What do you think would happen if the Earth looses its gravitational pull?
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>In Real Life>Q 1
Machines help us in many ways they make our work easier and reduce time. Machines help us exert mechanical force. We should take care of different machines such as fans, sewing machines and cars. These get worn out due to frictional force. Find out the ways by which we can reduce frictional force and thereby take care of the machines. 
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>FUN ZONE>Q 1

Find out the names of four different sports that involve different types of forces and complete the table below. One has been done for you. 

SI.No. Sports  Forces applied
1 Roller skating 
 		 Muscular, mechanical and frictional force
2    
3    
4    
5    
MEDIUM
4th CBSE
IMPORTANT
Stride Ahead With SCIENCE 4.>Chapter 9 - Force, Work and Energy>Crosslinks>Q 1
Write an essay on the topic ‘Friction: A necessary evil’.