Question

If the internal energy of an object remains constant, which of the following statements is true regarding the object's potential energy?

A. It increases when the object's velocity increases.
B. It remains the same when the object's velocity increases.
C. It will always be zero.
D. It decreases when the object's velocity increases.

Answer 1

is the answer C? I think internal energy pretty much covers potential energy up if that makes any sense

Answer 2

My understanding is that an object's potential energy is dependent upon the height of the object.

Answer 3

The velocity changes the kinetic energy.

Answer 4

oh so it'll remain the same because the velocity doesn't affect it

Answer 5

@JoannaBlackwelder

Answer 6

Hm, this question is kinda weird. Let me see if @abb0t can shed any light.

Answer 7

Well, you know total energy = Potential E + Kinetic E
this basically tells you total amount of energy in any isolated system remains constant but cannot be recreated, although it may change forms, like example: friction turns kinetic energy into energy.

Answer 8

totally lost now @abb0t haha

Answer 9

First of all, do you know what it means when they are referring to potential and kinetic energy?

Answer 10

yeah I got both of those

Answer 11

@abb0t

Answer 12

@JoannaBlackwelder got anything? seems @abb0t isn't here anymore haha

Answer 13

I'm thinking B.

Answer 14

weird it was D... I thought it was B too :/

Answer 15

Hm, I guess that goes back to abb0t's equation that total energy remains constant.

Answer 16

So if kinetic energy goes up and internal energy stays the same, potential energy has to go down.