Linear Motion Flashcards
Displacement
Distance moved in a particular direction
Speed
Distance moved per second
Velocity
Displacement per second
Average velocity
Total displacement / total time
Acceleration
Rate of change of velocity with time
Uniform Acceleration
Constant acceleration
An object undergoing uniform acceleration from rest, at any given time the instantaneous velocity at that time is always twice the average velocity.
Non-uniform acceleration
Non-constant acceleration
1st equation of motion
2nd equation of motion
3rd equation of motion
4th equation of motion
5th equation of motion
Displacement Time graph features
gradient = velocity
Velocity Time graph features
Area under the graph = displacement
Gradient = acceleration
Gravity
9.81ms-2
Vertical motion convention
Up is positive, down is negative
Free fall
Only force acting on the body is gravity
