1.7 Energy and efficiency Flashcards
1
Q
What is weight measured in
A
Newtons
2
Q
What is energy measured in
A
Joules
3
Q
Input energy def
A
The energy that is supplied to the device
4
Q
useful output energy def
A
the useful energy transferred by the device
5
Q
input energy formula
A
useful output energy + energy wasted
6
Q
efficiency formula
A
useful output energy transferred by device / total input energy supplied to the device
7
Q
A
