The universe’s total amount of energy does not ever change, but the amount of this energy that is available to do work varies tremendously. What statement best explains the changes in available energy?(1 point)

Question

Responses

The only way to create energy is through nuclear reactions.
The only way to create energy is through nuclear reactions.

Energy constantly changes from one form to another.
Energy constantly changes from one form to another.

100% of energy is always converted with perfect efficiency.
100% of energy is always converted with perfect efficiency.

Energy transfer always occurs through heat.

When a match is struck, what forms of energy does the burning match give off?(1 point)
Responses

Solar energy and nuclear energy
Solar energy and nuclear energy

Light energy and thermal energy
Light energy and thermal energy

Thermal energy and solar energy
Thermal energy and solar energy

Nuclear energy and light energy

Answer 1

1. The statement that best explains the changes in available energy is: Energy constantly changes from one form to another.

2. When a match is struck, the forms of energy that the burning match gives off are: Light energy and thermal energy.