Question

1. Which of the following is a direct cause of a substance’s temperature increase? (1 point)

Energy is removed from the particles of the substance.
Kinetic energy is added to the particles of the substance.
The number of atoms and molecules in a substance changes.
The volume of the substance decreases.
.

Answer 1

2. As the temperature of a substance increases, its volume tends to increase due to (1 point)
thermal equilibrium.
thermal energy.
thermal expansion.
thermal contraction.
.