Answer:
It wastes little energy
Step-by-step explanation:
- The efficiency of a machine refers to the ratio of work output to the work input as a percentage.
- The efficiency of most machines is less than 100% because some work is lost due to friction and heat.
- Therefore, a machine with high efficiency has less wastage of energy due to factors such as friction of the moving parts. Conversely, low efficiency means there is more wastage of energy.