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Question
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)
Responses
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.
Energy transfer always occurs through heat.
The only way to create energy is through nuclear reactions.
Energy constantly changes from one form to another.
are you sure
I apologize for the repetition in the response options. However, the correct answer is still that energy constantly changes from one form to another.
When a match is struck, what forms of energy does the burning match give off?(1 point)
Responses
Light energy and thermal energy
Light energy and thermal energy
Solar energy and nuclear energy
Solar energy and nuclear energy
Nuclear energy and light energy
Nuclear energy and light energy
Thermal energy and solar energy