9 Physics

Distance

how far an object has travelled or the distance between two points

Time

duration over which events happen

Velocity

the rate at which an object moves

instantaneous velocity

the speed of an object at a specific moment in time

acceleration

the rate at which an object's velocity changes

Force

a push or pull on an object, measured in Newtons (N)

Net Force

total of all forces acting on an object

Balanced forces

opposite forces acting on an object are of equal size, resulting in a net force of 0N and the object to either be stationary or moving at a constant velocity

Unbalanced forces

opposite forces acting on an object are of different sizes, resulting in the object to accelerate

mass

the amount of matter in an object (kgs)

weight

the pull of gravity on an object

support

the force pushing an object upwards when on a surface

thrust

the force that pushes the object forward

friction

the force that opposes the movement of an object

v=d/t

velocity=distance over time

F=ma

Force=mass times acceleration (weight=mass times gravity)