Physics

Mass

The amount of matter in an object

kg

Mass unit of Measurement

Weight

Force acting on a mass due to gravity

Newton’s First Law

An object in motion stays in motion until an equal or opposite force acts on it

Newton’s third law

Every action has an equal and opposite reaction

Newtons second law

Force = mass x acceleration

Displacement

Change in position of an object and its direction

Velocity

speed in a specific direction

Vector

direction and magnitude

speed

the distance travelled per unit of time

Scalar Quantity

Vector with only size

Accellaration

change in velocity over time

Velocty =

displacement/change in time

acceleration =

change in velocity/change in time

change in velocity =

final velocity - initial velocity

Force

push or pull acting on an object

inertia

Force you have to apply in order to accelerate

weight =

mass x gravity

mass =

weight/gravity