Equations For Paper 1 Flashcards
1
Q
Kinetic energy
A
Kinetic energy=
0.5mass(speed)^2
2
Q
Gravitational potential energy
A
Massgravitational field strengthheight
3
Q
Elastic potential energy
A
0.5spring constantextension^2
4
Q
Change in thermal energy
A
Massspecific heat capacitytemp change
5
Q
Wave speed
A
Frequency*wavelength
6
Q
Potential difference
A
Current * resistance
7
Q
Power
A
P=IV pd*current
8
Q
Power 2
A
(Current)^2 * resistance
9
Q
Power with efficiency
A
Put in triangle with e at the top
10
Q
Power with work done
A
Put in a triangle with e at the top
11
Q
Efficiency
A
Useful energy transfer/total energy transfer
12
Q
Efficiency
A
Useful power output/total power input
13
Q
Energy transferred
A
Power*time
14
Q
Energy transfer
A
Charge flow* pd
15
Q
Density
A
Mass/volume
