Multiple Choice Questions
Multiple Choice Questions
Q.1. An athlete runs some distance before taking a long jump, because :
(a) he gains energy to take him through the long distance
(b) it helps to apply larger force
(c) by running action and reaction forces increase.
(d) by running he gives himself large inertia of motion
Q.2. While dusting a carpet we suddenly jerk or beat it with a stick because :
(a) inertia of rest keeps the dust in its position and the dirt is removed by moment of the carpet away
(b) inertia of motion removes the dirt
(c) no inertia is involved it is due to practical experience
(d) none of these
Q.3. A man is at rest in the middle of pond on perfectly smooth ice. He can get himself to the shore by making use of Newton’s :
(a) first law
(b) second law
(c) third law
(d) all the laws
Q.4. Inertia is that property of a body by virtue of which the body is :
(a) unable to change by itself its state of rest
(b) unable to change by itself its state of uniform motion
(c) unable to change by itself its direction of motion
(d) all of these
Q.5. A force can be completely described by :
(a) its magnitude
(b) its direction
(c) its magnitude and direction
(d) neither magnitude nor direction
Q.6. The SI unit of force is :
(a) newton
(b) newton per second
(c) newton-metre
(d) newton per square metre
Q.7. Which of the following has the largest inertia ?
(a) a pin
(b) a pen
(c) your physics book
(d) your school bag
Q.8. The rate of change of momentum is :
(a) velocity
(b) acceleration
(c) force
(d) impulse
Q.9. A jet engine works on the principle of Newton’s :
(a) first law of motion
(b) second law of motion
(c) third law of motion
(d) none of these
Q.10. Action-reaction forces act:
(a) on the same body
(b) on different bodies
(c) along different lines
(d) in the same direction
Q.11. The acceleration of a body is to be doubled from its initial value. By what factor is the acting force to be increased?
(a) half
(b) two
(c) four
(d) one
Q.12. The momentum of a body of given mass is proportional to its:
(a) speed
(b) volume
(c) density
(d) shape
Q.13. Newton’s second law of motion gives us a measure of :
(a) force
(b) momentum
(c) inertia
(d) acceleration
Q.14. When a net force acts on an object the object will be accelerated in the direction of force with an acceleration proportional to :
(a) force on the object
(b) velocity of object
(c) mass of object
(d) inertia of object
Q.15. The action-reaction forces:
(a) must act on the same object
(b) may act on same object
(c) may act on different objects
(d) must act on different objects
Q.16. A gun recoils after firing to conserve :
(a) velocity
(b) momentum
(c) force
(d) speed
Q.17. The quantitative definition of force is given by :
(a) Newton’s first law of motion
(b) Newton’s second law of motion
(c) Newton’s third law of motion
(d) Law of conservation of momentum.
Q.18. The qualitative definition of force is given by :
(a) Newton’s first law of motion
(b) Newton’s second law of motion
(c) Newton’s third law of motion
(d) Law of conservation of momentum
Q.19. When balanced forces act on a body, the body is :
(a) either at rest or moving with constant velocity
(b) moving with variable speed
(c) moving with variable velocity
(d) accelerating
Q.20. If a body experiences a net zero unbalanced force, then body:
(a) can be accelerated
(b) moves with constant velocity
(c) cannot remain at rest
(d) none of these
Follow on Facebook page – Click Here
Google News join in – Click Here
Read More Asia News – Click Here
Read More Sports News – Click Here
Read More Crypto News – Click Here