Question

5. In the following situations identify the agent exerting the force and the
object on which it acts. State the effect of the force in each case.
(a) Squeezing a piece of lemon between the fingers to extract its juice.
(b) Taking out paste from a toothpaste tube.
(c) A load suspended from a spring while its other end is on a hook fixed
to a wall.
(d) An athlete making a high jump to clear the bar at a certain height.
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Answer 1

Answer:

(a) Squeezing a piece of lemon between the fingers to extract its juice.

Agent exerting force: - Fingers

Object: - Lemon

Effect: - Change in Shape.

b) Taking out paste from a toothpaste tube.

(c) A load suspended from a spring while its other end is on a hook fixed to a wall.

Agent exerting force: - Load

Object: - Spring

Effect: - Change in shape of spring(d) An athlete making a high jump to clear the bar at a certain height.

Agent exerting force: - Muscles

Object: - Athlete

Effect: Change in state of motion.

Agent exerting force: - Fingers

Object: - Toothpaste tube

Effect: - Change in shape of toothpaste tube