Action and reaction are equal and opposite and they act on?
  • Same body
  • different bodies
  • None of these
Which one of these is not vector quantity?
  • Impulse
  • Momentum
  • Force
  • None of these
There are two statements made Statement A: A Rate of change of momentum corresponds to force Statement B: Rate of change of momentum corresponds to Kinetic Energy Which one of the following is correct?
  • A only
  • B only
  • Both A and B are correct
  • Both A and B are wrong
which one of these is not a correct formula?
  • $F=ma^2$
  • Impulse=change in momentum
  • $Force=ma$
  • $p=mv$
The inertia of an object tends to cause the object?
  • to decelerate due to friction
  • to resist any change in its state of motion
  • to increase the speed
  • None of these
An object of mass 200kg is accelerated uniformly from a velocity of 4m/s to 8m/s in 2 seconds. What is the formula for Impulse?
  • Impulse=change in Momentum
  • Impulse=Force exerted
  • Impulse=mass X velocity
  • None of these
What is the final momentum of the object?
  • 400 kg m/s
  • 800 kg m/s
  • 1600 kg m/s
  • none of these
find the magnitude of the force exerted on the object?
  • 800 N
  • 100 N
  • 200 N
  • 400 N
A force of 50 N acts on a mass of 500 g resting on a friction less surface. What is the acceleration produced?
  • 5 m/s2
  • 25 m/s2
  • 100 m/s2
  • 10 m/s2
A object of mass 5 g is pushed on a table. The object starts moving at a speed of 15 m/s and stops in 5 seconds. Find the force of friction exerted by the table on the object.?
  • .01 N
  • .012 N
  • .115 N
  • .015 N
The change in momentum of a body in 0.02 sec is 10 kg m/s. Find the force acting on this body?
  • 5000 N
  • 10 N
  • 1000 N
  • 500 N
A truck of mass 100 kg starts at rest and moves in a straight road with constant acceleration 5 m/s2 .What is the momentum after 5 sec?
  • 2500 Kg m/s
  • 250 kg m/s
  • 500 kg m/s
  • none of these
What is a force?
  • a) A colour
  • b) A push or pull
  • c) A sound
  • d) A machine
Which force acts opposite to motion?
  • a) Magnetic force
  • b) Frictional force
  • c) Muscular force
  • d) Gravitational force
According to Newton’s First Law, an object at rest remains at rest unless acted upon by a __________.
  • a) balanced force
  • b) net force
  • c) magnetic force
  • d) weak force
The SI unit of force is __________.
  • a) Joule
  • b) Newton
  • c) Watt
  • d) Pascal
Which law explains action and reaction forces?
  • a) Newton’s First Law
  • b) Newton’s Second Law
  • c) Newton’s Third Law
  • d) Law of Gravitation
What happens when you kick a football?
  • a) It changes colour
  • b) It changes shape only
  • c) It moves
  • d) Nothing happens
Which force pulls objects towards the Earth?
  • a) Frictional force
  • b) Electrostatic force
  • c) Gravitational force
  • d) Magnetic force
Which of the following helps us walk without slipping?
  • a) Gravity
  • b) Friction
  • c) Magnetism
  • d) Electricity
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