Science physics equations Flashcards
1
Q
How to work out charge?
A
Current * time
2
Q
How to work out potential difference (voltage)?
A
Current * resistance
3
Q
How to work out energy transferred
A
power * time
charge * voltage
4
Q
How to work out power in electricity?
A
current^2 * resistance
voltage * current
5
Q
How to work out kinetic energy
A
0.5 * mass * speed^2
6
Q
How to work out gravitational potential energy?
A
Mass * gravitational field strength * height
7
Q
How to work out power (energy)?
A
Energy transferred/time
Work done/timd
8
Q
How to work out efficiency
A
Useful output energy transfer / total input energy transfer