Linear Motion Flashcards
What is linear motion
Movement of a body in a straight or curved line, where all parts move the same distance in the same direction over the same time
What type of force is required to create linear motion
Direct force
What is meant by ‘direct force’
Force applied through the centre of mass, resulting in linear motion
Define the term distance
The total length covered from start to finish
Define the term displacement
The shortest straight line route from start to finish
What are distance and displacement measured in
Metres
What is speed?
The rate of change in distance
How do you calculate speed?
Speed = distance/time
What is speed measured in
m/s
What is velocity
The rate of change in displacement
How do you calculate velocity
Velocity = displacement / time
What is velocity measured in?
m/s
What is momentum
The quantity of motion possessed by a moving body
How do you calculate momentum
Momentum = mass x velocity
What is momentum measured in
Kgm/s