Physics Pro: A Level & Pre-Uni

What is plasma?

A nice video presentation by NASA Goddard...

https://youtu.be/E3T2ldsdtMg?si=Z8VZC0ghQydZEiwl

Time actually moves slower in stronger gravity.

Yep — thanks to Einstein, we know your head ages faster than your feet. It’s called gravitational time dilation. Even GPS satellites need to correct for this!

Tiny bubbles. Giant mystery. Sound waves can make water bubbles glow — physics still can’t fully explain why.

SONOLUMINESCENCE

Sound can make bubbles in water and emit tiny flashes of light. No one fully knows why.

Electrons don’t always care about obstacles. Quantum tunneling lets them teleport through barriers.

QUANTUM TUNNELING EFFECT

Particles can sometimes pass through barriers they shouldn't be able to. It’s like walking through a wall!

Want to stay young forever? Just take a round trip at near-light speed. Physics-approved time travel!

TWIN PARADOX

Time slows down for moving objects.
If one twin travels near light speed and returns, they’ll be younger than their sibling.

What if pushing an object made it rush toward you? Welcome to the bizarre world of NEGATIVE MASS

In theory, there could be particles with negative mass — and they would accelerate opposite to the direction you push them!

Ever heard of the physics version of ‘a watched pot never boils’? It’s real — and it's called the QUANTUM ZENO EFFECT.

Staring at particles can freeze them in place.

If you constantly observe a quantum system, you can actually prevent it from changing states. It's like reality pauses when you're watching!

Isn't it so interesting?

Nothing in the universe can travel faster than light – not even your panic the night before an exam.

Light speed = 3 x 10⁸ m/s
That’s around the Earth 7.5 times in a second!
Every time you turn on a light, you're playing with the fastest thing in existence.