From what you can see in the video, how do you think the energy and motion of the white car changed after a force was applied?
A. The energy increased, and the motion decreased.
B. The energy decreased, and the motion increased.
C. The energy and motion both increased.
D. The energy and motion both decreased.

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.