Physics motion

What is a vector

a physical quantity that has both magnitude and direction

What is a scalar quantity?

A physical quantity that has only magnitude

Examples of scalar qualities

Distance, speed, energy, time

Example of vectors

displacement, velocity, acceleration, force

How do you represent a vector

An arrow - Magnitude is indicated by length of arrow, direction by the direction of arrow

Average speed

Distance moved/time taken

Acceleration

Difference between initial and final velocity/change in time

Units of velocity

m/s

Units of acceleration

m/s^2

What indicates acceleration in a velocity time graph

A gradient

What axis do velocity and time go on agraph

Time on x, velocity on y

How do you work out acceleration from a velocity time graphy

Change in y / Change in x

Change in velocity / Change in time