Equations Flashcards
1
Q
weight
A
mass x gravity
2
Q
work done
A
force x distance
3
Q
kinetic energy
A
1/2 x mass x velocity^2
4
Q
gravitational potential energy
A
mass x gravity x height
5
Q
power
A
work done/ time
6
Q
efficiency
A
useful/total
7
Q
charge flow
A
current x time
8
Q
potential difference
A
current x resistance
9
Q
electrical power
A
voltage x current
or
current ^2 x resistance0
10
Q
electrical energy transferred
A
voltage x charge
or
power x time§
11
Q
density
A
mass/volume
12
Q
displacement
A
work done/force
13
Q
spring constant
A
force/extension
14
Q
moment of force
A
force x perpendicular distance from the pivot
15
Q
turning effect
A
force x radius of gear
16
Q
pressure
A
force/area
17
Q
resultant force
A
mass x acceleration
18
Q
momentum
A
mass x velocity
19
Q
force
A
magnetic flux density x current x length x amps
20
Q
wavelength
A
speed/frequency
21
Q
frequency
A
1/period
