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# Do Now! - PowerPoint PPT Presentation

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

Speed investigation

• Interpreting distance-time and speed-time graphs

distance

time

distance

time

distance

time

distance

time

distance

time

distance

The gradient of this graph gives the speed

time

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

distance

time

fast

distance

time

fast

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

distance

time

fast

distance

slow

time

distance

time

distance

time

distance

time

Speed against time graphs

speed

time

speed

time

speed

time

speed

time

speed

time

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

speed

time

speed

fast

time

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

speed

fast

time

speed

fast

slow

time

speed

time

speed

Constant acceleration

time

speed

The area under the graph gives the distance travelled

time

speed

time

speed

Area = height of building

time

speed

time

time

Be careful!

speed

time

time

No movement

speed

time

time

Constant speed

Area = distance travelled

speed

time

time

Constant acceleration

Area = distance travelled

• Prediction

• Table of results (Mass, circumference or diameter, Distance, time (measured several times), speed)

• Suitable graph

• Conclusion

• Evaluation