Efficiency of Machines Quick Check

Question

1 of 51 of 5 Items
Question
Which is the equation for a machine’s efficiency?(1 point)
Responses

Efficiency=output energyinput energy . 100
Efficiency=output energyinput energy . 100

Efficiency=input energyoutput energy ⋅ 100
Efficiency=input energyoutput energy ⋅ 100

Efficiency=input energy+output energy
Efficiency=input energy+output energy

Efficiency=input energy−output energy
Efficiency=input energy−output energy
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Answer 1

The correct equation for a machine's efficiency is:

Efficiency = (output energy / input energy) × 100

This equation measures how effectively a machine converts input energy into output energy, expressed as a percentage.

So, the first response is the correct choice:

Efficiency = (output energy / input energy) × 100