Name each force.
(a) A meteor travelling through space moves faster and faster as it
(b) A bungee cord pulls a jumper back up toward the platform
from which he jumped.
(c) Your hands become warmer as you vigorously rub them together.
(d) When combing your hair, you notice that hairs move outward
from your head toward the comb.
a) tension force
b) elastic force
c) friction force
d) tension force
Why does a balance scale work anywhere in the universe?
gravity pulls down equally on objects of equal mass so it does not matter where you use it.