11. What is a SI Unit of Velocity…………..
a) Nm-1 b) ms-2 c) m/s
12. Shortest distance between two points is called
a) distance b) speed c) displacement
13. Newton’s First law of motion is also known as law of
a) speed b) rest
c) inertia d) force
14. Quantity of matter contained in the body is called______.
a) mass b) volume
c) area d) weight
15.Quantity of motion contained in a body is called
a) force b) inertia
c) momentum d) gravity
16. Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision__________.
a) remains constant
b) retains more momentum
c) losses some momentum
d) None of above is true
17. Weight of a body can be measured using a spring balance, it differs from place to place because of variation in _________.
a) acceleration b) gravitational pull
c) velocity d) size of spring balance
18. It is easier to push an empty shopping cart than a full one, because the filled cart has more mass than the empty one. This can be expressed by
a) F > m b) F < m
c) Fa 1/m d) F µ m
19. Centrifugal force is always directed
a) towards centre
b) away from centre
c) along the circular path
d) all sides
20. Friction opposes motion between two bodies in contact because of
a) charges on bodies
b) weight of bodies
c) roughness of surfaces
d) None of above
