Recent questions in Physics

+5 votes

0 answers

How did the Big Bang happen if there was no existence of time before that?

asked May 18, 2023 in Physics by BaldyMatt1976

+68 votes

0 answers

If something goes beyond or reaches the speed of light, will anything ever exist again as before?

asked May 18, 2023 in Physics by Mick90

+16 votes

0 answers

What are the implications of using artificial intelligence (AI) to understand the nature of consciousness? Does it violate any law of physics?

asked May 18, 2023 in Physics by EmberHorizon

+274 votes

0 answers

Why is a 250 pound skier faster, on the same quality but larger ski, than a 150 pound skier on the same slope? (the gravitational acceleration constant is a fixed number after all)?

asked May 18, 2023 in Physics by NebulaSeeker

+22 votes

0 answers

Why is gravity causing the universe’s expansion to speed up without extra mass/matter to propel it?

asked May 18, 2023 in Physics by GJR

+16 votes

0 answers

Why do protons exist at the center of atoms but not electrons?

asked May 18, 2023 in Physics by Luke World

+14 votes

0 answers

Do all forms of electromagnetic radiation require a material medium to propagate (like radio waves or infrared rays)?

asked May 18, 2023 in Physics by Vornie181

+24 votes

0 answers

Do sound waves travel faster through solids than air at room temperature?

asked May 18, 2023 in Physics by rekoj

+173 votes

0 answers

Does voltage mean how many electrons go from anode to cathode through the wire per 1 second?

asked May 18, 2023 in Physics by AstralMystic

0 votes

0 answers

Can you give an example of a counter-intuitive fact about reality that we know of from physics (quantum mechanics, relativity, etc.)?

asked May 18, 2023 in Physics by Danny Greenwood

+23 votes

0 answers

What is the likelihood of finding a universal theory that explains all known physical laws?

asked May 18, 2023 in Physics by simon Kearns

+10 votes

0 answers

If Stephen Hawking claims there are infinite universes to explain quantum fluctuations, then wouldn't one of these universes eventually create alien life that developed technology to travel into other universes and colonise our universe?

asked May 18, 2023 in Physics by Wilco47

+1 vote

0 answers

How should I study so as to be able to pass my physics exam because I think like I don't know it and it's very important to my future?

asked May 18, 2023 in Physics by BigHammer (3.2k points)

+27 votes

0 answers

Why isn't earth's gravity strong enough to hold helium?

asked May 17, 2023 in Physics by indgepr

0 votes

0 answers

What is the definition of gravity? Is it a force or attraction? What are its properties and why does it exist at all?

asked May 17, 2023 in Physics by GC129

+13 votes

0 answers

Where are the neutrino detectors located? Why are neutrinos so difficult to detect?

asked May 17, 2023 in Physics by QuasarOracle

+16 votes

0 answers

Can the sky actually fall?

asked May 17, 2023 in Physics by MalcyB

+118 votes

0 answers

Is matter eternal or ephemeral?

asked May 17, 2023 in Physics by Fat Tony

+8 votes

0 answers

Is it possible to have constant velocity and non-zero acceleration?

asked May 17, 2023 in Physics by NovaPulse

+23 votes

0 answers

The height of the ball thrown in the air in meters is represented as h(t) = -4.9t^2+12t+3. What is the initial height, maximum height When will the ball hit the ground and how long is the ball above 10 meters?

asked May 17, 2023 in Physics by MysticEnigma

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