Physics Equations Flashcards
1
Q
density
A
mass/volume
2
Q
efficiency
A
useful energy out/total energy in
3
Q
efficiency
A
useful power out/total power in
4
Q
speed
A
distance/time
5
Q
speed
A
frequency x wavelength
6
Q
angle of incidence
A
angle of reflection
7
Q
average speed
A
total distance/time
8
Q
acceleration
A
change in velocity/time
9
Q
weight
A
Mass x Gravity (10 on Earth, 1.6 on Moon)
10
Q
force
A
mass x acceleration
11
Q
force
A
change in momentum/time
12
Q
momentum
A
mass x velocity
13
Q
work done
A
force x distance moved
14
Q
average power
A
work done/time taken
15
Q
average power
A
energy transfered/time taken
16
Q
K.E
A
0.5 x mass x velocity^2
17
Q
Force x distance
A
0.5 x mass x speed^2
18
Q
G.P.E
A
mass x gravity x height
19
Q
K.E gained
A
G.P.E lost
20
Q
Current
A
Charge/time
21
Q
P.D
A
work done/charge
22
Q
P.D
A
current x resistance
