Displacement time graphs

What’s linear motion

When an object travels on either direction along a straight line

How do u find the average velocity on a displacement time graph

Find the gradient of the line

What does a horizontal line represent in a displacement time graph

The object has a velocity of zero and is stationary

What an equation for average velocity

Change in displacement / change in time

How do u find the average velocity between two points on a graph if the line is a curve

Draw a line between the two points and find the gradient

How do u find the instantaneous velocity of a point on a displacement time graph

Draw a tangent at that point and find the gradient of that tangent

How do u work out average speed

Distance traveled / change in time

What does the gradient represent in a displacement time graph

Average velocity