Question

Eva is in a closed, dark room. She uses her arm muscles to turn on a lamp. When she moves her hand closer to the lamp, the light heats her hand. The light bounces off the pages of a book and into her eyes.

If this room is a closed system, what happens to the total amount of energy in the room?

A.
It increases, then decreases.

B.
It increases.

C.
It decreases.

D.
It remains constant.

Answer 1

I think B

Answer 2

@Ilovecake

Answer 3

what do you mean?

Answer 4

So ur room with lamp n eva is a closed system

Answer 5

yea that's what i am thinking

Answer 6

D

Answer 7

Thanks

Answer 8

:)