Question

explain in detail effets of force with example(5 marks)

Answer 1

Answer:

Explanation:

FORCE CHANGES DIRECTION OF MOTION - EXAMPLE

When a ball hits against a wall, it bounces back in the opposite direction. So the force exerted by the wall on the ball changes its direction of motion.

FORCE CHANGES SHAPE OF OBJECT - EXAMPLE

When a hammer strikes a hot rod, the rod bends. The force exerted by the hammer on the rod changes the shape of the rod.

EXAMPLES FOR EFFECT OF FORCE - EXAMPLE

Force may bring the following change:

1) Can change the state of an object(rest to motion/ motion to rest):For example, pushing a heavy stone in order to move it.

2) May change the speed of an object if it is already moving.For example,catching a ball hit by a batsman.

3) May change the direction of motion of an object.For example,footballer kicks a   moving ball to change its direction.

4) May bring about a change in the shape of an object.For example, blowing air in balloon.

5) May cause some or all of these effects.

FORCE CAN CHANGE THE DIRECTION OF AN OBJECT - EXAMPLE

A side wind can change the direction of a boat sailing in a sea.

FORCE CAN CHANGE THE SPEED OF AN OBJECT - EXAMPLE

Blowing wind or wind storm can change the speed of moving car.

Answer 2

Answer:

Answer

Effect of forces -

1) force can change the shape of the object.

eg - pressing a balloon can change its shape.

2) force can stop the moving object.

eg - A ball can stop by the help of our legs.

3) force can move the object.

eg - Applying force through our legs can make the ball move.

4) force Can attract the object.

eg - Magnet. use to attract the pins ( Magnetic force)

5) force can change the direction of the object.

eg - Ball coming towards can change its direction if we apply the force.

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