Equations Flashcards
1
Q
Density
A
Mass / Volume
2
Q
Distance
A
Speed / time
3
Q
Acceleration
A
Change in speed / time
4
Q
Kinetic energy
A
0.5 x mass x (speed)^2
5
Q
Force
A
Mass x acceleration
6
Q
Momentum
A
Mass x velocity
7
Q
Work done
A
Force x distance (along the line of action of the force)
8
Q
Power 🕐
A
Work done / time
9
Q
Force exerted by a spring
A
Extension x spring constant
10
Q
Gravity force
A
Mass x gravitational field strength , g
11
Q
In a gravity field : potential energy
A
Mass x height x gravitational field strength , g
12
Q
Pressure
A
Force normal to a surface / area of that surface
13
Q
Moment of a force
A
Force x distance (normal to the direction of the force)
14
Q
Charge flow
A
Current x time
15
Q
Potential difference
A
Current x resistance
