Units for Forces and Motion

The units that you need to know for the topic forces and motion are as followed (SI units are just the basic unit of each measurement)

Kilogram (kg)

This is the SI unit of mass. One kilogram = 1000 grams (1kg = 1000g)

Metre (m)

This is the SI unit of distance and displacement.

(Displacement is dependent on direction as well as size, for example if someone went 50m north and then 20m south, the total distance travelled would be 70m, but displacement would be 30m.)

Metre/Second (m/s)

This is the SI unit of speed or velocity

Metre/Second (m/s²)

This is the SI unit of acceleration

Newton (N)

This is the SI unit of force.

Second (s)

This is the SI unit of time.

Newton/Kilogram (N/Kg)

This is an unit of acceleration

We know this from the equation F = ma (Force = Mass x Acceleration) 

Rearranged this reads, Acceleration = Force/ Mass

N + Kg are the units of force and mass respectively, so acceleration = N/Kg

Kilogram Metre/Second (kg m/s)

This is the SI unit of momentum

We know this from the equation momentum = mass x velocity

kg + m/s are the units of mass and velocity respectively, so momentum = kg m/s

These will all be explained in depth in the next few posts. 

I will answer any questions in the comments below.