efficiency Flashcards
1
Q
efficiencies aren’t 100% efficient, so what are they between?
A
all efficiencies exist between 0-100%
2
Q
what is useful energy?
A
the energy transferred into the form of energy that is wanted
3
Q
what is wasted energy?
A
energy is transferred into a form of energy that is not useful. This is often thermal store or sound store.
4
Q
how can you make an appliance more energy efficient?
A
must reduce the amount of wasted
energy. Eg by using lubrication, tightening loose or moving particles and reducing electrical resistance
