kinematics definitions Flashcards
1
Q
Displacement from A to B
A
The shortest distance from A to B together with the direction.
2
Q
Mean speed
A
The rate of change of distance.
3
Q
Mean velocity
A
The rate of change of displacement.
4
Q
Instantaneous speed
A
The rate of change of distance at a specific moment.
5
Q
Instantaneous velocity
A
The rate of change of displacement at a specific moment.
6
Q
Mean acceleration
A
The rate of change of velocity.
7
Q
Instantaneous acceleration
A
The rate of change of velocity at a specific moment.
8
Q
Acceleration due to gravity
A
The acceleration of a freely falling object, i.e. one on which gravity is the only force.
9
Q
Terminal velocity
A
The constant, maximum velocity of an object when the resistive forces on it are equal and opposite to the ‘accelerating’ force.
