eVidyarthi

Energy, Class 9 Science

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. A body is acted upon by a force 25 N acquires of 2.5 ms-2 and covers a distance of the force. If the body starts from rest, the Kinetic energy acquired by it is?
 
 
 
 

Question 1 of 20

2. A freely falling body during its fall will have
 
 
 
 

Question 2 of 20

3. A boy climbs on to a wall that is 3.4 m high and gains 2250 J of potential energy. What is the mass of the boy? Take g = 9.8 m/Sec2
 
 
 
 

Question 3 of 20

4. A body of mass 4 kg has a momentum of 25 kg m/s, its K.E. is:
 
 
 
 

Question 4 of 20

5. What happens to K.E. of a body when 3/4 th of mass is removed and its velocity is doubled?
 
 
 
 

Question 5 of 20

6. Elastic potential energy of a body can be achieved by
 
 
 
 

Question 6 of 20

7. If the velocity of a moving car is halved, its kinetic energy would
 
 
 
 

Question 7 of 20

8. A fish with weight 35 kg dives and hits the ground (zero height) with kinetic energy equal to 3500J. Find the height through which fish dived. Take g = 10 m/s2
 
 
 
 

Question 8 of 20

9. Which of the following is not an example of potential energy?
 
 
 
 

Question 9 of 20

10. How fast should a person with mass 50kg walk so that his kinetic energy is 625 J?
 
 
 
 

Question 10 of 20

11. The kinetic energy of a body changes from 12 J to 60 J due to the action of a force of 5N on an object of mass 4 kg. The work done by the force is:
 
 
 
 

Question 11 of 20

12. Two bodies of masses m and 4 m are moving with equal kinetic energy. The ratio of velocities with which they are traveling is :
 
 
 
 

Question 12 of 20

13. If the speed of an object doubles, its kinetic energy becomes
 
 
 
 

Question 13 of 20

14. If two bodies of different masses have the same K.E. then the relation between momentum and mass will be:
Energy Multiple Choice Questions for CBSE Class 9 Physics Topperlearning
 
 
 
 

Question 14 of 20

15. 1 J is the energy required to do ____ of work.
 
 
 
 

Question 15 of 20

16. A body of mass 44 kg is moving at a velocity of 10 m/s is brought to rest in 10mins, the work done is:
 
 
 
 

Question 16 of 20

17. For an object to have gravitational potential energy only, it must be
 
 
 
 

Question 17 of 20

18. A body at rest cannot have:
 
 
 
 

Question 18 of 20

19. Potential energy is energy possessed by an object due to its
 
 
 
 

Question 19 of 20

20. Which would have greater impact; a ball with mass m thrown with speed 20 m/s or a ball with mass m/2 thrown at speed 40 m/s?
 
 
 
 

Question 20 of 20


 

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