P5 Equations Flashcards
1
Q
speed
A
speed = distance / time
2
Q
acceleration
A
acceleration = change in velocity / time
3
Q
work done
A
work done = force x distance
4
Q
elastic energy
A
1/2ke^2
5
Q
equation linking force, mass, velocity and time
A
force = (mass x change in velocity)/time
6
Q
equation linking force, mass and acceleration
A
force = m x a
7
Q
pressure (solid)
A
pressure = force/area
8
Q
weight
A
weight = mass x gravitational strength
9
Q
pressure (gas)
A
pressure = height x density x gravitational field strength
10
Q
equation linking velocity, acceleration and distance
A
final velocity^2 - initial velocity^2 = 2as
11
Q
pressure unit
A
Pa
12
Q
force unit
A
N
13
Q
velocity unit
A
m/s
14
Q
acceleration unit
A
m/s^2
15
Q
mass unit
A
kg
16
Q
distance unit
A
m
17
Q
work done unit
A
J or Nm
18
Q
equation linking spring constant, force and extension
A
F=ke
