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Do Now!. Last lesson. Speed investigation. Today’s lesson. Interpreting distance-time and speed-time graphs. Distance against time graphs. distance. time. No movement?. distance. time. No movement. distance. time. Constant speed?. distance. time. Constant speed. distance. time.

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Presentation Transcript
last lesson
Last lesson

Speed investigation

today s lesson
Today’s lesson
  • Interpreting distance-time and speed-time graphs
no movement
No movement?

distance

time

no movement1
No movement

distance

time

constant speed
Constant speed?

distance

time

constant speed1
Constant speed

distance

time

constant speed2
Constant speed

distance

The gradient of this graph gives the speed

time

constant speed3
Constant speed

How would the graph look different for a faster constant speed?

distance

time

constant speed4
Constant speed

fast

distance

time

constant speed5
Constant speed

fast

How would the graph look different for a slower constant speed?

distance

time

constant speed6
Constant speed

fast

distance

slow

time

getting faster
Getting faster

distance

time

examples
Examples

distance

time

no movement2
No movement?

speed

time

no movement3
No movement

speed

time

constant speed9
Constant speed

How would the graph look different for a faster constant speed?

speed

time

constant speed10
Constant speed

speed

fast

time

constant speed11
Constant speed

How would the graph look different for a slower constant speed?

speed

fast

time

constant speed12
Constant speed

speed

fast

slow

time

getting faster accelerating2
Getting faster? (accelerating)

speed

Constant acceleration

time

getting faster accelerating3
Getting faster? (accelerating)

speed

The area under the graph gives the distance travelled

time

example
Example:

speed

time

be careful

distance

speed

time

time

Be careful!
no movement4

distance

speed

time

time

No movement
constant speed13

distance

speed

time

time

Constant speed

Area = distance travelled

constant acceleration

distance

speed

time

time

Constant acceleration

Area = distance travelled

investigating rolling balls
Investigating rolling balls!
  • Prediction
  • Table of results (Mass, circumference or diameter, Distance, time (measured several times), speed)
  • Suitable graph
  • Conclusion
  • Evaluation
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