first test Flashcards
1
Q
name the 8 energy stores
A
Kinetic, Thermal, Gravitational potential, elastic potential, magnetic, chemical, electrostatic and nuclear
2
Q
name the 4 types of transfer
A
radiation, electrically, heating and mechanically
3
Q
how do you work out work done?
A
force (N)Xdistance(m)
4
Q
how do you work out GPE
A
mass X gravitational field strength X change in height
5
Q
how do you work out kinetic energy
A
1/2 X mass X velocity squared
6
Q
how do you work out efficiency
A
useful output energy /total input energy
7
Q
how do you calculate power
A
energy/time
