🧠 Newton’s Laws of Motion
Sir Isaac Newton explained how things move using 3 simple rules, called laws.
1️⃣ First Law: Objects like to keep doing what they are doing
(Law of Inertia)
What it means:
- Things stay still if they are still.
- Things keep moving if they are moving.
- Unless something pushes or pulls them.
Easy example:
- A book on a table does not move until you push it.
- A rolling ball keeps rolling until it hits something or slows down.
🧠 Easy line:
No push → no change
2️⃣ Second Law: Push harder, move faster
(Force = Mass × Acceleration)
What it means:
- A bigger push makes something move faster.
- Heavier objects are harder to move than light ones.
Easy example:
- Kicking a soccer ball is easy.
- Kicking a big rock is hard!
- Push a toy car softly → it moves slowly.
- Push it hard → it moves fast.
🧠 Easy line:
Hard push = fast move
3️⃣ Third Law: Every action has a reaction
(Action–Reaction)
What it means:
- When you push something,
- It pushes back on you.
Easy example:
- Jumping off the ground → ground pushes you up
- Swimming → you push water back, water pushes you forward
- Rocket launch → gas goes down, rocket goes up 🚀
🧠 Easy line:
Push back happens!
🎯 Fun memory trick
- 1st Law: Stay the same
- 2nd Law: Push decides speed
- 3rd Law: Push back!

🌟 Why are these laws important?
- Help us understand sports
- Help build cars, planes, rockets
- Explain how we walk, run, and jump


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