Multiple Choice Questions
1. A stone
is dropped from a cliff. The time during which it covers a distance of 490 m is
a) 10 sec
b)
100 sec
c) 9.8 sec
2. The
braking force needed to bring a car of mass 1200 kg to rest in 5 seconds when
it is moving at
20 m/s is
a) 6000 N
b)
4800 N
c) 2400 N
d)
1200 N
3. In
equation F = ma, the mass m is
a) Rest mass
b) Variable mass
c) Inertial
mass
d) Gravitational mass
4. The
quantitative measure of inertia of a body is
a) Its mass
b) Its weight
c) Its
velocity
d) Force
5. When a
horse pulls a cart, the force that causes the horse to move forward is the
force
a) The cart
exerts on horse
b) The horse exerts on cart
c) The horse
exerts on the ground
d) The ground exerts on horse
6. When a
person jumps off the ground, the reaction force of the ground is
a) Greater
than the weight of the person
b) Smaller than the weight of the person
c) Equal to
the weight of the person
d) Zero
7. The
property of body that opposes any change in its state of motion or rest is
a) Weight
b)
Torque
c) Momentum
8. Motion
of rocket in space is the example of
a) First law
of motion
b) Second law of motion
c) Third law
of motion
d) Law of gravitation
9. Rate of
change of momentum is
a) Weight
b)
Force
c) Mass
d)
Acceleration
10. When a
bullet is fired by a gun, the gun recoils backward with a velocity
a) Less than
that of the bullet
b) Equal to that of the bullet
c) Greater
than that of the bullet
d) None of the above
