Scalars Flashcards
1
Q
A scalar quantity
A
Has magnitude only
2
Q
Examples of scalar
A
Distance
Speed
Time
Mass
3
Q
Distance - description + unit
A
Measure of length
Metre(m)
4
Q
Speed - description + unit
A
Measure of how quickly a body moves
Unit- metres per second (ms^_1)
5
Q
Time - description + unit
A
Measure of ongoing events taking place
Seconds (s)
6
Q
Mass - description + unit
A
Measure of the quantity of matter contained in an object
Kilogram (kg)
7
Q
scalar quantities are?
A
always positive
8
Q
when considering motion in a straight line(1-dimensional motion), vector quantities can be?
A
positive or negative
