Question

A certain lever system is only 30% efficient. What could make it more efficient? (1 point)
Responses

Have more than one person help to lift the lever.
Have more than one person help to lift the lever.

Use a stiffer lever to reduce energy lost bending the lever.
Use a stiffer lever to reduce energy lost bending the lever.

Make a longer lever that will require less force.
Make a longer lever that will require less force.

Use it with a lighter load to make it easier.

Answer 1

To improve the efficiency of a lever system that is currently only 30% efficient, the best response would be:

**Use a stiffer lever to reduce energy lost bending the lever.**

A stiffer lever would minimize energy losses due to bending, which can contribute to inefficiency. Other options like using a lighter load or having more people help may make it easier to lift but do not directly address the efficiency of the lever itself in terms of energy conservation and transfer. Making a longer lever might reduce the force needed but doesn't necessarily improve efficiency in energy transfer.