Forces and Motion

Speed, Distance, Time Formulas

Acceleration

tells you how quickly an object is moving

a=v-u/t

v

final time

u

initial speed

t

time

convert km/h → m/s

divide 3.6

convert km → m

x1000

Distance Time Graph

horizontal line - no movement

steeper line - faster movement

flatter line - slower movement

linear line - constant speed

Cation

positivity charged stom

Anion

negatively charged atom

velocity

speed in a particular direction

inertia

 An object's tendency to resist change in motion

stopping distance

the reaction time combined with the breaking of distance

air resistence

air resists movement

speed

The distance covered in a particular time (how fast an object is moving)

friction

Force that slows down moving objects

acceleration

the rate at which speed increase

1st newtons law

An object stays at rest unless acted upon by an unbalanced force

2nd Law

When a force is applied to an object with mass, it will accelerate in the direction of the force 

3rd Law

For every action, there is an equal and opposite reaction

Action

push back down

reaction

push back up