Class 9 Force and Laws of Motion MCQ Quiz Set 1

MCQ Quiz – 1 MCQ Quiz – 2 Notes Important Questions NCERT Solutions

Force and Laws of Motion Quiz – 1

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1. When a body is stationary

 
 
 
 

2. A 4000 kg lift is accelerating upwards . the tension in the supporting cable is 64000 N. if g = 10 m/s2, then the acceleration of the lift is

 
 
 
 

3. Newton used the phrase ‘quantity of motion’ for

 
 
 
 

4. When a net force acts on an object, the object will be accelerated in the direction of the force with an acceleration directly proportional to the

 
 
 
 

5. The law which gives a quantitative  measurement of force is

 
 
 
 

6. Momentum has the same units as that of

 
 
 
 

7. The product of force and time is called

 
 
 
 

8. A hammer weighing 3 kg, moving with a velocity of 10 m/s , strikes against the head of a spike and drives it into a block of wood. If the hammer comes to rest in 0.025 s, the impulse associated with a ball will be

 
 
 
 

9. A lift is moving up with an acceleration of 3.675 m/s2. The weight of a man

 
 
 
 

10. 1 dyne is equal to

 
 
 
 

11. A bullet of mass 0.01 kg is fired from a gun weighing   5.o kg. if the initial speed of the bullet is 250 m/s,  calculate the speed with which the gun recoils.

 
 
 
 

12. A force of 6 N acts on a mass of 1 kg which acquires a velocity 30 m/s. The time for which the force acts is

 
 
 
 

13. A force of 5 newton acts on a body of weight 9.80 newton. What is the acceleration produced in m/s2?

 
 
 
 

14. A rocket works on the

 
 
 
 

15. A particle of mass ‘m’ moving with velocity ‘v’ strikes a stationary particle of mass ‘2m’ and sticks to it. The speed of the system will be

 
 
 
 

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