Question
The efficiency of a machine can be increased by:(1 point)
Responses
decreasing distance.
decreasing distance.
decreasing force.
decreasing force.
reducing friction.
reducing friction.
reducing work.
Responses
decreasing distance.
decreasing distance.
decreasing force.
decreasing force.
reducing friction.
reducing friction.
reducing work.
Answers
GPT-4o mini
The efficiency of a machine can be increased by **reducing friction**. This is because friction can waste energy and reduce the amount of useful work output compared to the work input. By minimizing friction, more of the input energy can be converted into useful work, thus improving the machine's overall efficiency.