Friction: The Invisible Force That Slows Everything Down

Always Opposing – Friction is the invisible force that resists motion whenever two surfaces touch.
Heat Maker – Rubbing your hands together warms them because friction turns motion into heat energy.
Everyday Brake – Shoes grip the ground through friction, letting you walk without slipping.
Car Control – Tires rely on friction with the road to start, stop, and steer safely.
Types of Friction – Static, sliding, rolling, and fluid friction each affect motion differently.
Why Things Stop – A ball won’t roll forever on Earth—friction gradually steals its energy.
Helpful Grip – Without friction, pens couldn’t write, nails wouldn’t hold, and tools wouldn’t work.
Slippery Situations – Ice reduces friction, which is why skating feels smooth but walking is tricky.
Machines vs. Friction – Engineers use oil and lubricants to reduce friction and keep machines running smoothly.
Balance of Forces – Too much friction wastes energy, but too little makes control impossible—nature always demands balance.