Velocity and Distance time graphs Flashcards
1
Q
Define velocity
A
speed in a certain direction
2
Q
What is velocity measured in
A
m/s
3
Q
How do you work out speed?
A
Speed = distance/time
4
Q
What does the gradient of a distance time graph tell us?
A
The speed
5
Q
How do you calculate speed from a distance-time graph?
A
Speed = rise/run
6
Q
Define acceleration
A
How quickly the velocity is changing
7
Q
How do you calculate acceleration?
A
Acceleration = change in velocity/time taken or (v-u)/axt
8
Q
What is the unit for acceleration?
A
m/s^2
9
Q
For a velocity time-graph, what does the gradient mean?
A
Gradient = acceleration
10
Q
For velocity time-graphs, what does the area under the line mean?
A
the distance travelled in that time interval
11
Q
How do you calculate acceleration from a velocity time-graph?
A
Acceleration = rise/run
