formulae Flashcards
1
Q
density
A
mass/volume
2
Q
velocity
A
distance/time
3
Q
acceleration
A
change in velocity/change in time
OR
2as = v^2 - i^2
2acceleration distance = final v^2 - initial v^2
4
Q
weight
A
mass x gravitational field
5
Q
elastics force
A
spring (constant) x extension
6
Q
force
A
mass x acceleration
7
Q
torque (moment)
A
torque = perpendicular distance x force
8
Q
momentum
A
mv - mu
mass x velocity
9
Q
impulse
A
force x time
10
Q
resultant force
A
change in momentum/change in time
11
Q
kinetic energy
A
(1/2) x mass velocity^2
12
Q
gravitational potential energy
A
gravitational energy= mass x gravity x height
13
Q
work
A
force x distance
14
Q
power
A
work done/time taken
15
Q
pressure
A
force/area
