Question

A scientist places an air-filled balloon into a freezer and observes that the balloon shrinks. Which best explains why this happens?


The air particles inside the balloon turn from gas to liquid.
The air particles inside the balloon make holes in the balloon.
The air particles inside the balloon move faster and have more collisions with the sides of the balloon.
The air particles inside the balloon move slower and push less against the sides of the balloon.

Answer 1

I want to say C or D

Answer 2

@oldrin.bataku

Answer 3

A freezer is not cold enough to turn air into a solid, so A is wrong. B is nonsensical as is C; remember, the kinetic and vibrational energy of our atoms is the physical manifestation of heat, so as the atoms cool in the freezer, they actually move *less* and *slower*.

Answer 4

The correct answer is D, as cooling results in atoms with less kinetic energy and thus lower speeds.

Answer 5

So D!

Answer 6

Indeed!