Equations Flashcards
1
Q
Wave speed
A
Wave length x frequency
2
Q
Speed
A
Distance / time
3
Q
Weight
A
Mass x gravity
4
Q
Force
A
Mass x acceleration
5
Q
Acceleration
A
Change in velocity / time take
6
Q
Power
A
Energy transferred / time
7
Q
Kinetic energy
A
1/2 x mass x speed2
8
Q
Gravitational potential energy
A
Change in gravity x mass x change in vertical height
9
Q
Effiencey
A
Useful energy transferred by the device / useful energy supplied by the device
10
Q
Energy
A
Force x distance
11
Q
Power
A
Current 2 x resistance
12
Q
Power
A
Current x potential difference
13
Q
Energy
A
Charge x potential difference
14
Q
Charge
A
Current x time
15
Q
Potential difference
A
Current x resistance
