Types of Friction
Why is rolling easier than sliding?
Equilibrium
How can a hanging signboard stay still despite gravity pulling it?
Impulse
Why does a cricket player lower hands while catching a ball?
Seatbelts
How do seatbelts save lives during sudden brakes?
Rocket Propulsion
How does a rocket move in space without air to push against?
Common Misconception
Does heavier mean faster when falling?
Work Done Basics
If I push a wall really hard but it doesn’t move, have I done any work?
Positive vs Negative Work
What’s the difference between positive and negative work?
Kinetic Energy Intuition
Why does a moving truck cause more damage than a moving scooter at the same speed?
Work-Energy Theorem
How does the work-energy theorem explain braking in a car?
Power in Real Life
Is a 1000W microwave always “more powerful” than a 500W one?
Potential Energy Analogy
Why is a ball at a higher shelf considered to “have energy”?
Conservation of Energy
Does energy ever “disappear”?
Rotational Inertia
Why is it harder to open a door by pushing near the hinges than near the handle?
Rolling vs Sliding
Why does a rolling ball slow down less than a sliding one?
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