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 remains constant.

B.
It increases.

C.
It decreases.

D.
It increases, then decreases.

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 remains constant.
 
 B.
It increases.
 
 C.
It decreases.
 
 D.
It increases, then decreases.

anonymous · Answer

A. Did this myself