Which is the best statement of the Law of Conservation of Energy?(1 point)

Question

Responses

The amount of energy put into a simple machine should be conserved.
The amount of energy put into a simple machine should be conserved.

The amount of energy put out by a simple machine must equal the amount of energy put into the machine.
The amount of energy put out by a simple machine must equal the amount of energy put into the machine.

The amount of energy put out by a simple machine depends on its efficiency.
The amount of energy put out by a simple machine depends on its efficiency.

The amount of energy put out by a simple machine is always less than the amount of energy put into the machine.

Answer 1

The amount of energy put out by a simple machine must equal the amount of energy put into the machine.