Author Question: What physical quantities discussed in this chapter change most when a junked car is neatly crushed ... (Read 72 times)

nevelica · **on:** Aug 27, 2018

What physical quantities discussed in this chapter change most when a junked car is neatly crushed into a compact cube?

A) The car's weight and volume change, but not its mass.
B) The volume of the car changes as well as its average density.
C) The car's temperature changes, but not its average density.
D) The mass of the car changes as well as its volume.

Question 2

What is the role of a neuron in the body?

A) to transmit electrical impulses
B) to store sodium ions
C) to accept light signals and convert them into electrical signals
D) the neuron is a neutral particle with the same mass as a proton
E) to connect nerve cells together