P3: Forces Flashcards
1
Q
Equation for weight
A
Weight = mass x gravitational field strength
W = m g
2
Q
Equation for work done
A
Work done = force x distance
W = F s
3
Q
Equation for force on a spring
A
Force = spring constant x extention
F = k e
4
Q
Equation for moment of a force
A
Moment = force x distance
M = F d
5
Q
Equation for pressure
A
Pressure = force normal to a surface/area of that surface
p = F/A
6
Q
Equation for distance
A
Distance travelled = speed x time
s = v t
7
Q
Equation for acceleration
A
Acceleration = (final velocity - initial velocity)/time taken
a = (v-u)/t
8
Q
Equation for resultant force
A
Resultant force = mass x acceleration
F = m a
9
Q
Equation for momentum
A
Momentum = mass x velocity
p = m v
