Title Slide

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ProblemDoes the height of the ramp affect the
distance a toy car travels?
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ProblemDoes the height of the ramp affect the
distance a toy car travels?
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Hypothesis If we roll a toy car down ramps of
different heights and measure the distance it
rolls/how far it goes, then we think that car on
the lowest ramp will go farthest distance.
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HypothesisThe Vote
0 votes for the two book ramp
13 votes for the one book ramp
6 votes for the three book ramp
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Variables Independent Variable The element that
we changedThe height of the Ramp by adding more
books Dependent Variable The element that was
changed by the adding more booksThe Distance
the Car rolled
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• Materials
• Books for ramps
• A toy car
• Meter stick/tape measure

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• Procedure
• With one book build a ramp.
• roll car down the ramp
• measure/record distance
• Repeat for a total of 5 trials
• build a 2 book high ramp and repeat steps 2-4
• Build a 3 book high ramp/repeat steps 2-4

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Procedure
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Results

• Using our data we calculated, with calculators,
  the total distance of each ramp height, then got
  an average by dividing the total by the number of
  trials, five, for each ramp height. See Chart.

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Data Chart
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Data Chart
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Data Graph
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Data Graph
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Conclusion

• As we suggested in our hypothesis, the majority
  of the class thought that the one book ramp would
  have the farthest distance. We were incorrect.
  The six students who voted for the three book
  ramp were correct.

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Conclusion

• We noticed that the more books we added to the
  ramp, the further the car went. In other words
  the higher the ramp, the greater the distance.

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Conclusion The Science behind the project

• A ramp is an incline plane, a simple machine, a
  tool that uses force to make work easier.
• We think that raised height did some of the work
  and made it easier for the car to move and move
  father.

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Bibliography
http//www.bbc.co.uk/schools/ks2bitesize/science/a
ctivities/forces_action.shtmlA web version of
the experiment we did as a class http//www.brain
popjr.com/science/forces/simplemachines/ A movie
which defines simple machines and ramps. Also
explain why a ramp is useful and how it makes
work easier.
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Bibliography
How do you lift a lion?, robert E. Wells, 1996,
Albert Whitman Co. A Fun book which provides
literacy connections about simple machines. Its
Science Machines We Use, Sally Hewitt, 1997,
Childrens Press A colorful book discussing
everyday examples of simple machines we use in
our everyday lives.