Science worksheet for Class III focusing on force and friction, asking students to identify children applying force in different scenarios.

Let's solve the worksheet step by step.

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Worksheet: Unit 7 - Force & Friction

Class: III
Subject: Science
Task: Look at the pictures and circle the children who are applying force.

We need to identify which children in each picture are exerting a push or pull, i.e., applying force. Remember:

> Force is a push or pull on an object that can cause it to move, stop, or change direction.

Now, let’s analyze each image:

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#### a) Children playing cricket
- There are children playing with a bat and ball.
- The child hitting the ball with the bat is applying force (push).
- The bowler also applies force to throw the ball.
- Other players may be standing or watching.

✔ Children applying force: The one batting and the one bowling.

👉 Circle the batter and the bowler.

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#### b) Boy pressing a scale
- The boy is standing on a weighing scale.
- His weight (due to gravity) is acting downward, so he is applying force on the scale.

✔ Yes, he is applying force.

👉 Circle this boy.

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#### c) Two boys pulling a rope (Tug of War)
- Both boys are pulling the rope — they are exerting pulling forces.

✔ Both are applying force.

👉 Circle both boys.

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#### d) Boy using a well to draw water
- He is pulling the rope to lift the bucket from the well.
- This is a pulling force applied to lift the bucket.

✔ He is applying force.

👉 Circle this boy.

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#### e) Children playing football
- One child is kicking the ball → applying force.
- Others might be running or watching.
- Only the one kicking is actively applying force to the ball.

✔ The child kicking the ball is applying force.

👉 Circle only the child kicking the ball.

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#### f) Children reading a book together
- They are sitting and reading — no physical movement or pushing/pulling.
- No visible force being applied to any object.

✘ No force is being applied here.

👉 Do not circle anyone.

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✔ Final Answer:

Circle the following:
- a) The batter and the bowler
- b) The boy on the scale
- c) Both boys in tug of war
- d) The boy pulling the bucket
- e) The child kicking the ball
- f) None

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🔍 Explanation Summary:

Force is needed to:
- Move objects (like kicking a ball)
- Pull or push things (like tug of war, lifting water)
- Even stand on a scale (weight = gravitational force)

But simply reading or standing without interaction doesn't involve active force application.

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