History of Physics
Conceptual Physics
Random Physics Facts
Physics in Pop Culture
Astrophysics
100

This Greek philosopher wrote the first "physics textbook"

Who is Aristotle

100

What is the difference between speed and velocity

Velocity includes direction; speed does not

100

Acronym for LASER

Light Amplification by Stimulated Emission of Radiation

100

What superhero famously defies gravity using repulsor technology?

Iron Man

100

What is a light-year a measure of?

Distance — the distance light travels in one year (~9.46×10¹² km).

200

The failure of this experiment in 1887 disproved the existence of the luminiferous ether

What is the Michelson-Morley experiment

200

When a ball is thrown straight up, what is its velocity at the highest point?

0 m/s

200

What fundamental force holds electrons around the nucleus?

Electromagnetic force

200

In Back to the Future, the DeLorean needs to reach what speed to time travel?

88 mph

200

This is the name for the boundary around a black hole beyond which nothing, not even light, can escape.

Event Horizon

300

What famous experiment did Michelson and Morley perform in 1887?

They tried to detect the "aether" and found no evidence.
300

Tendency of things to resist change in motion is

inertia

300

These nearly massless particles were first proposed by Wolfgang Pauli to explain missing energy in beta decay — and billions of them pass through your body every second without you noticing. 

Neutrinos

300

The lightsabers in Star Wars are said to be made of what fictional energy?

Plasma (or kyber crystal–powered plasma blades)

300

What percentage of our universe does visible matter make up?

~5%

400

What physicist unified electricity and magnetism into a single theory?

James Clerk Maxwell

400

Why do astronauts appear weightless in orbit even though gravity still acts on them?

They are in continuous free fall around Earth.

400

Name the four fundamental forces of nature

Strong Nuclear, Electromagnetic, Weak nuclear, Gravitational

400

In Interstellar, who helped ensure the black hole depiction was scientifically accurate?

Physicist Kip Thorne

400

What evidence do scientists have for the expansion of the universe?

The redshift of light from distant galaxies (Hubble’s Law).

500

She was the first woman to earn the Nobel Prize in Physics

Marie Curie

500

A car doubles its speed. How does its kinetic energy change?

It quadruples (KE ∝ v²).

500

This fundamental constant relates the energy of a photon to its frequency.

Plancks Constant

500

Sheldon Cooper from The Big Bang Theory specializes in what field of physics?

Theoretical physics (specifically string theory)

500

Stars are classified in a few different ways. Using the spectral sequence, list the major types of stars ranging from hottest and bluest to coldest and reddest.

Bonus: What kind of star is our Sun?

O, B, A, F, G, K, M

Our Sun is a G star.