MCQ Questions

Question No. 1

State True or False and correct the false statement giving reasons

Answer :

(1) Force does not have a proper direction.

(2) Force can be described as push or pull.

(3) There are no benefits from friction.

(4) Rolling friction happens in wheels.

(5) Moving heavier bodies is easy because friction is less.

(6) Wet surfaces have the same friction as dry surfaces

(7) When a piece of iron touches a magnet it becomes a contact force.

Question No. 2

Fill in the blanks

Answer :

(1) Net force of equal and opposite force on a body is ____________.

(2) Two components of force are ____________ and ____________.

(3) Magnetic force is ____________ force.

(4) Friction acts opposite to ____________.

(5) In tug of war we apply ____________ force.

(6) Application of powder in carrom reduces ____________.

(7) Sliding friction is ____________ than static friction.

Question No. 3

Short answer type questions

Answer :

(2) Give an example, how force can change the direction of motion.

(4) What kind of surface will have low friction?

(1) What effect a force can have in the following situations: (a) On a moving body (b) On a body at rest (c) On a soft object

(3) Why is friction considered a contact force?

(6) Why it is sometimes, difficult to walk on a tiled floor?

(5) If you stop pedaling your bike why does it stop even without applying brakes?

Question No. 4

Name the force and its type, in the following examples:

Answer :

(a) A ball falling from a height

(b) A donkey moves a cart

(c) A ball stops rolling

Question No. 5

Long answer type questions

Answer :

(2) What are contact forces? Explain with the help of examples.

(6) What are the advantages of friction? Give two examples.

(1) What can happen when two forces act on a body (a) In opposite direction (b) In the same direction

(3) Why we should be more careful to walk on wet floors?

(4) Explain the three kinds of friction in brief

(5) What are the factors that affect friction?

(7) State three disadvantages of friction and how can we reduce it?

Question No. 6

Match the column

Answer :

Question No. 7

How can we stop a moving body?

Answer :

Force as push or pull must be applied.

Force must be applied in the same direction.

Force can be applied in any direction.

Push or pull must be applied in the opposite direction.

Question No. 8

When we apply force it does not change the :

Answer :

Volume of the body

Mass of the body

Width of the body

Shape of the body

Question No. 9

Muscular force used to lift weights is :

Answer :

A type of non-contact force

A type of gravitational force

A contact force

Muscle power is not a force

Question No. 10

A bar magnet slipped from the hands of Leena and fell to the ground. The main force responsible for its fall to the ground was -

Answer :

Magnetic force

Gravitational force

Force of friction

Muscular force

Question No. 11

Which of the following is not an example of contact force?

Answer :

Person drawing water from a well

Person pushing a small box

Ball falling from a height

Boy braking his bike

Question No. 12

Which of the following is not correct about force?

Answer :

It changes the length of the body.

It can reduce the mass of a body.

It can reduce the volume of a balloon.

It can change the direction of motion of a body.

Question No. 13

A box is being pushed from north to south; in which direction will the force of friction act?

Answer :

North to South

South to North

East to West

West to East

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