Question

What happens when you use a lever to lift a box?(1 point)
Responses

You use force from the lever to lift the box.
You use force from the lever to lift the box.

You use force to transfer mechanical energy into the lever, which transfers the energy to the box.
You use force to transfer mechanical energy into the lever, which transfers the energy to the box.

The lever transfers mechanical energy from the fulcrum to box.
The lever transfers mechanical energy from the fulcrum to box.

The lever reduces the amount of mechanical energy stored in the box.

Answer 1

You use force to transfer mechanical energy into the lever, which transfers the energy to the box.

Explanation: you do work on the lever, which transmits that work to the box (increasing its gravitational potential energy). The fulcrum only provides a pivot (not energy), and a lever can change the force required but doesn't create energy.