force and pressure

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

• force

• atmospheric pressure

• muscular force

• friction

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

• electrostatic force

• gravitational force

• muscular force

• contact force

Two boys A and B are applying force on a block. If the block moves towards the boy A, which one of the following statements is correct?

• Magnitude of force applied by A is greater than that of B.

• Magnitude of force applied by A is smaller than that of B.

• Net force on the block is towards B.

• Magnitude of force applied by A is equal to that of B.

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

• difference between two forces

• sum of two forces

• both of these

• none of these

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

• A ball of dough rolled into chapati

• Pressing a plastic ball kept on table

• Making model using clay

• All of the above

An example of a non- contact force is

• Force exerted by us to lift a bucket

• Push a stationary car

• Force exerted by magnet

• Hit a cricket ball for a 6 run

Opening the door is an example of which type of force?

• contact force

• spring force

• non-contact force

• magnetic force

Force acting per unit area is called

• non-contact forces

• contact forces

• force

• pressure

The force exerted by a charged body on another charged or uncharged body is called

• gravitational force

• electrostatic force

• non-contact force

• contact force

Force changes the

• motion of body

• speed of body

• shape of body

• all of these