Here we are sharing Force and Motion Question & Answer that you can check for prepare exam.
Force and Motion Question & Answer
Q. A body is moving with uniform velocity its acceleration is:
Ans. Zero
Q. A bus starts from rest and moves with uniform acceleration of 0.1m/s2.The velocity of the bus after 2 minutes will be:
Ans. 12 ms-1
Q. Which of the following quantities is not a vector:
Ans. Mass
Q. A force 100 makes an angle of 30 deg with the horizontal.The vertical component of the force will be:
Ans. 100 sin30 deg
Q. The area under the velocity-time graph gives:
Ans. Total distance traveled
Q. A car is moving with a uniform velocity of 60 ms-1.A retardation of ms-2 produced by applying brakes.The car will stop in a time of:
Ans. 4 second
Q. In uniform circular motion the speed of the body:
Ans. Remains constant but velocity changes
Q. The angular velocity of the second’s hand of a clock is:
Ans. π/30 red/s
Q. if a body is moving in a circle of radius r with constant speed v, its angular velocity is given as:
Ans. v/r
Q. A vector is defined by:
Ans. Magnitude, Direction
Q. Displacement is a:
Ans. Vector quantity
Q. Which is true for Newton’s third law of motion:
Ans. Action and reaction are not equal but opposite
Q. The slope of velocity time graph shows:
Ans. Acceleration
Q. The rate of change of displacement is called:
Ans. Velocity
Q. The slops of the velocity-time graph for retarded motion is:
Ans. Negative
Q. l radian is equal to:
Ans. 573 deg
Q. Angular speed of a body which is moving with unit velocity in a circle of radius l m.
Ans. l rad/s
Q. A bomb of mass 20 gm strikes a target with a velocity of 500 cms-1.If the resisting force is 104 dynes the bullet will penetrate through:
Ans. 2.5 m
Q. A force produce an acceleration of ms-2 in a mass of 1 kg.The force is called one:
Ans. 1 Newton
Q. If velocity of a body remains the same the momentum of the body depends upon:
Ans. Mass
Q. A force of 110 N acts on a body for 0.1 second.The change in momentum of the body is:
Ans. 11 Ns
Q. A body of mass 50 kg is suspended by a spring balance.The acceleration due to gravity is 10 ms-2.The weight of the body is:
Ans. 500 N
Q. The property of a body due to which it can not change its state of rest or uniform motion by itself is called:
Ans. Inertia
Q. A body has a weight W on the surface of earth.The weight is:
Ans. The force with which it is attracted towards the earth
Q. When a fast moving bus suddenly takes a turn the passengers are thrown in the outward direction.It is due to:
Ans. Inertia of direction
Q. To open a door easily the handle should be fixed:
Ans. At maximum distance from the hinges
Q. Rockets work on the principle of conservation of:
Ans. Linear momentum
Q. The unit of force is:
Ans. Newton
Q. A body is taken 500 m below the surface of earth in a mine.Its weight will:
Ans. Decreases
Q. A body of mass m is moving with velocity v.The momentum p of the body is given as:
Ans. p=mv
Q. Newton’s second law of motion gives the relation between:
Ans. Force and momentum
Q. Momentum of a truck at rest is:
Ans. Zero
Q. Formula for the measurement of force is base on:
Ans. Newton’s second law of motion
Q. Quantity of motion contained in a body is called:
Ans. Momentum
Q. Produced of force(F) and time(t) for which force acts on body is called:
Ans. Impulse
Q. The ratio of force of friction (F)to the normal reaction (R)is called:
Ans. Co-efficient of friction
Q. We can’t walk on ice properly because of:
Ans. Lesser friction