Question

Give one example each to indicate that the application of a force

1. produces motion
2. stops motion
3. slows down motion
4. changes the direction of motion
5. deforms a body

Answer 1

Force:

1. Force is defined as the push or pull on an object that causes it to change its velocity.
2. Force is an external agent capable of changing a particular body's state of rest or motion.
3. It has a magnitude and direction.
4. The SI unit of force is Newton(N).
5. The Force can be measured using a spring balance.

Examples to indicate that the application of a force:

1. Produces motion- A car originally at rest when pushed, begins to move.
2. Stops motion- A moving bicycle is stopped by applying the brakes.
3. Slows down motion- The speed of a moving vehicle is slowed down by applying the brakes.
4. Changes the direction of motion- A player kicks a moving football to change its direction of motion.
5. Deforms a body- On stretching a rubber string, length increases.