forces and motion Flashcards
1
Q
what is speed?
A
a measure of distance travelled by an object is time (m/s)
2
Q
What is velocity?
A
Velocity is a measure of the displacement travelled by an
object in a time. Measured in m/s and calculated using:
Velocity = displacement ÷ time
3
Q
What does a horizontal line on a D/T
graph show?
A
The object is stationary/ at rest
4
Q
What does the gradient on a D/T
graph tell you?
A
The objects speed
5
Q
What does a straight line tell you on a
V/T graph?
A
The object is accelerating at a constant rate
6
Q
What does the area under the graph
tell you in a V/T graph?
A
The displacement travelled by the object
7
Q
What does a horizontal line show you
on a V/T graph?
A
The object is travelling at a constant velocity
8
Q
What is relative speed?
A
The speed of one object compared with another object.
