Linear Motion Principles (Terms)

What is Speed?

it refers to the rate at which a body moves from one location to another

How is Speed Calculated?

distance travelled / time taken

Speed can be Measured in…

metres per second and km per hour (km/h)

What is Velocity?

it refers to the speed of a body in a given direction

How is Velocity Calculated?

displacement / time taken

What is Acceleration?

it refers to the rate at which the velocity of a body changes with respect to the time that a force is acting upon it

How is Acceleration Calculated?

change in velocity (v2 - v1) / time taken

What is Mass?

it refers to the amount of matter that makes up a body

What is Force?

it refers to a pushing or pulling action that changes a body’s state of motion

What is Inertia?

it refers to the body’s resistance to a change in its state of motion