speed-time graph Flashcards
1
Q
distance travelled
A
= area under the graph
2
Q
a speed-time graph shows…
A
…how an object’s speed changes as it moves
3
Q
steeper slope…
A
… greater acceleration
4
Q
negative slope…
A
…deceleration (slowing down)
5
Q
horizontal (slope=0)…
A
…constant speed
6
Q
curved graph lines tells us that…
A
…the acceleration was changing
7
Q
acceleration
A
=gradient of speed-time graph
8
Q
3 points about acceleration in speed-time graphs:
A
- object must be travelling in straight line; its velocity is changing, its direction is not
- if line is curved, acceleration is changing
- if graph sloping downwards, object is decelerating. gradient = negative
9
Q
greater the gradient (slope)…
A
…bigger the acceleration
