Classical Mechanics
Physics of the impossible
Hot & Chaotic Physics
Extreme space & Time
Quantum weirdness
100

What type of collision conserves both momentum and kinetic energy?

Elastic

100

What kind of matter is theorized to hold a wormhole open?

Exotic matter with negative energy.

100

What transfers heat fastest: metal or wood?

Metal

100

If you lived on a neutron star, how would time change for you?

It would slow down dramatically due to gravity.

100

This physicist's namesake experiment demonstrated that observing quantum particles changes their behavior

Young


200

Why does a fast-spinning wheel resist changes in orientation?

Gyroscopic effect

200

What hypothetical energy repels gravity in the universe?

Dark energy

200

Why is it impossible to reach absolute zero?

Infinite energy removal would be required.

200

Could a black hole ever shrink instead of grow?

Yes—via Hawking radiation.

200

Which physicist’s famous inequality challenged the idea of hidden variables in quantum mechanics?

Bell

300

Can an object have zero velocity but still be accelerating?

Yes—at the peak of a projectile’s motion.

300

If a spaceship moves close to light speed, how does its length appear to an outside observer?

It contracts

300

In a chaotic system, why is prediction so difficult?

Small changes in initial conditions grow exponentially (butterfly effect).

300

If you could travel faster than light, what strange effect would you notice?

You could see events happen before their cause.

300

Which principle suggests that all quantum states exist until observed?


Superposition

400

A projectile explodes mid-air. What quantity remains conserved?

Momentum

400

What kind of hypothetical engine could extract energy from a rotating black hole?

Penrose process

400

If you put your hand in an oven at 200°C and another in boiling water at 100°C, which burns faster?

The water

400

What happens if you travel near the speed of light for a year?

You age less than people on Earth (time dilation).

400

Which paradox suggests measuring a quantum system affects its outcome?

Observer effect

500

What theorem states that the time-averaged kinetic energy equals half the time-averaged potential energy in a bound system?

Virial theorem

500

What quantum field phenomenon suggests that empty space is never truly empty, constantly generating virtual particles?

Vacuum fluctuations

500

What state of matter exists at ultra-high temperatures?

Quark-gluon plasma

500

What hypothetical particle travels faster than light?

Tachyon

500

Which interpretation of quantum mechanics suggests particles take every possible path?

Feynman's path integral