Equations to learn Flashcards
1
Q
workdone (f + d )
A
force x distance moved
2
Q
speed
A
distance/time
3
Q
acceleration (t)
A
a =(v-u)/t
4
Q
force
A
mass x acceleration
5
Q
weight
A
mass x gravitational strength
6
Q
efficiency
A
useful energy/ total energy used
7
Q
momentum
A
mass x velocity
8
Q
wave speed
A
frequency x wavelength
9
Q
wave speed
A
distance/time
10
Q
density
A
mass/volume
11
Q
change in gravitational potential energy
A
mass x gravitational strength x change in vertical height
12
Q
kinetic energy
A
1/2 x mass x (speed)squared
13
Q
power
A
work done / time
14
Q
energy transferred
A
charge moved x potential difference
15
Q
charge
A
current x time
