In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.
Taking out paste from a toothpaste tube.
Agent - Hand of the person squeezing the tube.
Object - Toothpaste tube
Effect - The paste comes out of the tube on squeezing.
In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.
A load suspended from a spring while its other end is on a hook fixed to a wall.
Agent - Suspended Load
Object - The spring
Effect - Elongation of the spring upon suspension of load.
Give two examples of situations in which applied force causes a change in the shape of an object.
The shape of an object can be changed due to applied force. For example:
1. When force is applied on a lump of dough on a plate.
2. The spring fitted under the seat of a bicycle gets compressed when you sit on the seat.
In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.
Squeezing a piece of lemon between the fingers to extract its juice.
Agent exerting the force is Fingers
Object on which the force acts is Lemon
Effect of force is Lemon juice is extracted by squeezing.
Give two examples each of situations in which you push or pull to change the state of motion of objects.
Objects are pushed or pulled inorder to change it's state of motion.
Examples of push are:
1) We push a door to open it.
2) A football player kicks the ball and pushes it.
Examples of pull are:
1) We pull the desk to change its position.
2) The rope is pulled, to draw a bucket of water from a well.
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