VPM Definitions Flashcards
1
Q
Position
A
A vector quantity that points from the reference point as the origin
2
Q
Distance
A
Length of path travelled
3
Q
Displacement
A
A change in position
4
Q
Speed
A
The rate of change of distance
5
Q
Velocity
A
The rate of change of position or the rate of displacement
6
Q
Acceleration
A
The rate of change of velocity
7
Q
Freefall
A
An object is in free fall if the only force acting on it is gravitational force.
8
Q
Gravitational acceleration
A
The acceleration an object will experience due to gravity. On Earth it is 9.8m.s^-1
9
Q
Terminal velocity
A
The maximum velocity a falling body reaches when air resistance prevents it from accelerating further.
10
Q
Resultant Vector
A
The single vector that has the same effect of all the original vectors acting together
