1
Q
density
A
volume
2
Q
speed
A
time
3
Q
acceleration
A
time
4
Q
newton’s second law
A
force=mass x acceleration
5
Q
weight
A
mass x gravity
6
Q
momentum
A
mass x velocity
7
Q
force (rate of change in momentum)
A
time
8
Q
impulse
A
force x time
9
Q
force(hooke’s law)
A
spring constant x extension
10
Q
pressure
A
area
11
Q
pressure in liquids
A
density x gravity x depth
12
Q
moment
A
force x perpendicular distance from pivot
13
Q
work
A
force x distance
14
Q
power
A
time
15
Q
efficiency
A
useful output
——————— x 100
total input
16
Q
kinetic energy
A
1
- m x velocity squared
2
17
Q
gpe
A
g x h x m
Physics
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