Science M.C.Q. [I MARKS]

Tyres of vehicles have grooves on their surface:

Does a falling body accelerate? Why?

In the circuit shown in Figure when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?

The force between two charged bodies is called?

Which one of the following forces is a contact force?

The net force on an object is zero if the two forces act on it in

A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus

Gravity is

A ball rolling on the ground slows down and finally stops. This is because of

Which of the following is proper example(s) to explain that force on an object may change its shape

If two forces act in the opposite directions on an object, the net force acting on it is the

A push or pull on an object is called

Which one of the following forces is a contact force?

Two objects repel each other. This repulsion could be due to

When the hammer strikes the gong of an electric bell, which of the following force is responsible for the movement of hammer?

State of motion is described by

Leaves fall down on the ground due to

The strength of force is expressed by its

When two forces act in opposite directions, then net force acting is the

A spring balance is used for measuring

The force exerted by our muscle is called

Force changes the

The force exerted by a charged body on another char

The force exerted by the earth to pull the object towards itself is called

Force acting on per unit area is called

The pressure which is exerted by air around us is known as