💪 Force: Push, Pull, Effects and Friction

Learn force using real-world examples only. Explore push, pull, effects on speed, direction, shape and size, and the force of friction through animated activities.

Force Push Pull Friction Speed Direction

📌 What is Force?

Force is a push or pull acting on an object. We use force in daily life when we push a door, pull a drawer, kick a football, squeeze a sponge, or apply brakes on a bicycle.

👉 Push

A push moves an object away from us.

Real-world example: Pushing a shopping trolley.

👈 Pull

A pull brings an object closer to us.

Real-world example: Pulling a school bag zipper.

🛞 Friction

Friction is a force that opposes motion.

Real-world example: Bicycle brakes slowing down a wheel.

🌈 5W-1H + 1U

🔴 What: Force is a push or pull acting on an object.

🟠 Why: Force helps us move, stop, turn, squeeze, stretch or shape objects.

🟡 When: Force is used whenever we interact with objects in daily life.

🟢 Where: Force is seen at home, school, playground, road, kitchen and sports field.

🔵 Who: People, animals, machines and natural processes can apply force.

🟣 How: Force acts by pushing, pulling, twisting, squeezing or rubbing.

⚫ 1U: Force can change motion, direction, shape or size, but it does not change mass.

🎯 Effects of Force Using Real-World Examples

Effect of Force	What Happens?	Real-World Example
Mass	No effect on mass	Pushing a table does not change the amount of matter in the table.
Speed	Force can increase or decrease speed	Kicking a football increases its speed. Applying bicycle brakes decreases speed.
Direction	Force can change direction	A cricket bat changes the direction of a moving ball.
Rest and Motion	Force can move a resting object or stop a moving object	Pushing a parked trolley starts its motion. Brakes stop a moving bicycle.
Shape and Size	Force can change shape or size	Squeezing a sponge changes its shape. Stretching a rubber band changes its size.
Friction	Friction opposes motion	Shoes grip the ground while walking because of friction.

🧪 Animated Force Lab

Push Changes Motion

The cart moves because a push is applied.

➡

🛒

A push can move a resting object or increase the speed of a moving object.

Pull Changes Motion

A rope pull can move an object toward the person pulling it.

📦

A pull brings an object closer and can change its state of rest or motion.

Force Changes Shape and Size

Squeezing a sponge or stretching a rubber band changes shape or size.

Force can change the shape and size of objects like sponge, clay, spring and rubber band.

🛞 Force of Friction

Friction is a contact force that opposes motion. It acts between two surfaces in contact.

Animated Friction Example

The ball slows down because friction opposes its motion.

⚽

Friction acts opposite to motion

Useful Friction

• Walking without slipping
• Writing with pencil
• Braking a bicycle
• Holding a glass

Harmful Friction

• Wears out shoe soles
• Heats machine parts
• Slows moving objects
• Causes wear and tear

Reducing Friction

• Using oil or grease
• Using ball bearings
• Smoothing rough surfaces
• Using wheels

✅ Force Quiz

Select the correct answer and click submit to check your score.

1. Force is a: Push or pull Colour Taste

2. Pushing a trolley is an example of: Push Pull No force

3. Pulling a drawer is an example of: Pull Push Friction only

4. Force has no effect on: Mass Speed Direction

5. Applying brakes changes: Speed Mass Colour

6. A cricket bat changing the path of a ball shows change in: Direction Mass Temperature

7. Squeezing a sponge shows force can change: Shape Mass Taste

8. Friction: Opposes motion Always increases speed Changes mass

9. Walking is possible due to: Friction No force Only air

10. Oil reduces friction in: Machines Books only Clouds only

🧠 HOTS Questions

1. Why does pushing a wall not change its motion?

The applied force is not enough to move the wall, so its state of rest does not change.

2. Why does force not change the mass of a table?

Mass is the amount of matter in the table. A push or pull may move it, but does not change the matter present in it.

3. Why does a football slow down after being kicked?

Friction with the ground and air resistance oppose its motion and reduce its speed.

4. Why do bicycle brakes work?

Brakes increase friction between brake pads and wheel, which slows down or stops the bicycle.

5. Why is friction useful while walking?

Friction between our shoes and the ground prevents slipping and helps us move forward.