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