Question

Which of the four fundamental forces is mainly responsible for contact forces?

gravity, weak nuclear force, electromagnetic force, or strong nuclear force

***I think it's electromagnetic force, is that right? :)

Answer 1

I believe that electromagnetic force is a non-contact force (imagine two magnets repelling each other)

Answer 2

ohh okay, so what would be the one responsible for contact forces?

Answer 3

Wait, I think that you're actually correct

Answer 4

yeah you basically have the interaction of protons vs protons (since they make up the majority of the atoms' mass) which causes repulsion leading to contact forces

Answer 5

which explains why your hand does NOT go through a wall when you lean on it

Answer 6

wait so it is electromagnetic force?

Answer 7

haha going through the wall would not be very good!

Answer 8

according to quantum mechanics, it's possible (at least I think it is?) but it's very very rare

Answer 9

anyways, don't worry about that since I doubt your physics class is covering that

Answer 10

haha okie:) so in the end, electromagnetic force is mainly responsible for contact forces? :O

Answer 11

yeah because that's where we're saying "a proton has a positive charge (of +1) and an electron has a negative charge (of -1)"

Answer 12

remember the protons are so much more massive than the electrons

Answer 13

ahh okie:)

thank you:D