Physical Science 9 Flashcards
1
Q
Vector quantity
A
A physical measurement that contains directional information
2
Q
Scalar quantity
A
A physical measurement that does not contain directional information
3
Q
Acceleration
A
The time rate of change of an objects velocity
4
Q
Free fall
A
The motion of an object when it is falling solely under the influence of gravity.
5
Q
Reference point
A
A point against which position is measured
