give an example of the following cases :
1. Force can change the direction of motion
2. Force can change the speed of motion
3. Magnetic force
4. Gravitational force
5. Force can change the shape and size of an object
6. Force can produce motion
7. Force can stop motion
8. Mechanical force
Answers
Answer:
1. if we are playing table tennis then the direction of ball is changed in every hit or shot
2. if we push anything it's speed is changed
3. the force which have the power to attract or repel according to the poles the biggest magnet is our earth
4. the force which attract us towards earth ex all the people living in South poles doesn't fall.
5. push a balloon you will get your answer
6. push anything it comes in motion
7. if I catch a ball the force stops the ball
8. the force that us entire our body or the force which contains any one kinetic energy or potential energy
Explanation:
explanation is not needed thanks for the chance
Your examples are as follows:-
1) When a cricket ball is hit by the batsmen. It tends to change the direction of the ball.
Hence an example of "Force can change the direction of motion."
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2)Say a car is moving with a constant speed. Adn suddenly a truck hits the car at the back. (Hence force applied which tends to change the speed of the motion.
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3) The compass shows north direction. (Hence compass is being attracted by a force. And that force is called Magnetic force.
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4) When we throw a ball in the air it comes back to the earth. (An example of gravitational force.)
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5)When we strech a rubber band it tends to change the shape.
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6) When we push a object say a ball which was is rest.
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7) Goalkeeper stops the football by applying force on the football (An example of Force stops the motion.)
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8) Sum of kinetic and potential Energy is known as Mechanical energy.
So When we throw a ball from a peak It undergoes mechanical energy.
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