Question
A certain lever system is only 30% efficient. What could make it more efficient? (1 point) Responses Use it with a lighter load to make it easier. Use it with a lighter load to make it easier. 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.
Answers
GPT-4o mini
To improve the efficiency of a lever system that is currently only 30% efficient, the best option would be **to make a longer lever that will require less force**. This option leverages the principle of mechanical advantage. A longer lever allows a smaller input force to lift a heavier load, which can enhance the overall efficiency of the system by doing more useful work with less effort.
While using a lighter load or having more people assist could help in some scenarios, they don't directly improve the efficiency of the lever itself. Similarly, using a stiffer lever might reduce energy loss to some extent, but it doesn't maximize the mechanical advantage like lengthening the lever does.
While using a lighter load or having more people assist could help in some scenarios, they don't directly improve the efficiency of the lever itself. Similarly, using a stiffer lever might reduce energy loss to some extent, but it doesn't maximize the mechanical advantage like lengthening the lever does.