Force

Topic: Force and Energy — Science and Technology (Age 9, Kenya)

A force is a push or a pull. Forces make things start moving, stop moving, change direction, or change shape. We feel forces every day at home, school and on the playground.

Easy words

• Push — to move something away from you (e.g., push a door).
• Pull — to bring something closer to you (e.g., pull a chair).
• Direction — the way the object moves.
• Change of shape — force can squash or stretch things (e.g., squeeze play dough).

What forces do

• Make things start moving (kick a ball).
• Make things stop (catch a ball).
• Change the speed or direction (push a toy car to turn).
• Change shape (squeeze a sponge or press clay).

Simple examples from Kenya

• Kicking a football at the school field — you use a force with your foot (push).
• Pulling a bucket of water from a shallow well — you pull the bucket up.
• Pushing a class chair to put it under the desk — a push moves the chair.
• Carrying a jerrycan — you use force to lift it up (pull or push with your hands).

Small pictures to help you see force

How we measure force

Scientists use the unit called the newton (N). For class work you just need to know that forces are measured and that they can be small or big.

Simple class activities

1. Push and Pull game: In pairs, one friend pushes a toy car and the other pulls it back. See which is faster.
2. Tug of war: Use a rope and play gently to feel pulling forces. Count which side pulls more people.
3. Squeeze and stretch: Use play dough to feel how force changes shape when you press or stretch.

Safety

Always be gentle. Do not pull or push someone too hard. Ask an adult for help when lifting heavy things like a full jerrycan.

Quick quiz (try these)

Remember

A force is a push or a pull. We use forces every day. Try the activities to see forces in action!

Prepared for learners in Kenya — simple notes for age 9. Teachers can add local examples from the classroom.