Equations Flashcards
1
Q
Average Speed (m/s)
A
Distance (m) / time (s)
2
Q
Acceleration (m/s²)
A
Change in velocity / time
3
Q
Force (N)
F = ma
F = Δ m/T
A
Mass (kg) x acceleration (m/s²)
OR
Change in momentum (kg m/s) / time (s)
4
Q
Weight (N)
A
Mass (Kg) x Gravitational field strength (N/kg)
5
Q
Momentum (Kg m/s)
A
Mass (kg) x velocity (m/s)
6
Q
Moment
A
Force (N) x perpendicular distance between force and pivot (m)
7
Q
Work done (J)
A
Force (N) x Distance moved in direction of force (m)
8
Q
Change in gravitational potential energy (J)
A
mass (kg) x gravitational field strength (N/kg) x change in height (m)
9
Q
Kinetic energy (J)
A
1/2 x mass (kg) x velocity² (m/s)²
10
Q
Efficiency
A
Useful energy transferred (J) / total energy supplied (J)
11
Q
Density (kg/m³)
A
Mass (kg) / volume (m³)
12
Q
Pressure (Pa)
A
Force (N) / Area (m²)
