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Speed - time graphs
speed
time
No movement
speed
time
Constant speed
speed
time
Constant speed
speed
time
How would the graph look different for a
faster constant speed?
Constant speed
speed
time
fast
Constant speed
speed
time
fast
How would the graph look different for a
slower constant speed?
Constant speed
speed
time
fast
slow
Getting faster? (accelerating)
speed
time
Getting faster? (accelerating)
speed
time
Constant acceleration
Getting faster? (accelerating)
speed
time
The area under the graph gives the distance travelled
Example:
speed
time
A dog falling from a tall building (no air resistance)
speed
time
A dog falling from a tall building (no air resistance)
speed
time
A dog falling from a tall building (no air resistance)
speed
time
Area = height of building
Be careful!
distance
time
speed
time
No movement
distance
time
speed
time
Constant speed
distance
time
speed
time
Area = distance travelled
Constant acceleration
distance
time
speed
time
Area = distance travelled
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