Efficiency

Question 1

What does efficiency mean

Answer 1

The more efficient, the less energy wasted to a useless energy store

Question 2

How can you improve efficiency

Answer 2

Insulation
Lubrication
Streamlined

Question 3

What are the two formulas for efficiency

Answer 3

Useful output energy transfer/ total input energy transfer

Useful power output/total power input

Question 4

How can you convert efficiency to decimal

Answer 4

Divide by 100

Question 5

Why isn’t useful energy input equal to total energy output

Answer 5

Because energy is always being wasted

Except electric heaters