Making the grade
Typed activity
- Include discussion/introduction
- Answer question #1 on the hill
- Data table
- height
- Force to lift
- sample calculation of work to lift.
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20 |
35 |
45 |
60 |
| Force |
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| Distance |
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| Work |
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| Work to lift |
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| Efficiency |
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- Sample calculation of efficiency
Analysis:
- What pattern or relationship
do you find between the forces and the distances? Support your answer with
citations from your data and analysis. This is
the most important question - spend the most time on it.
- Does it take more or less force to move the cart using the incline plane?
Support your answer.
- Does it take more or less work to move the cart using the incline plane?
Support your answer.
- What causes the difference
between the work needed to pull the cart up the incline and the work needed
to lift it to the same height? Discuss ways
to decrease this difference.
- Design an experiment
to study your answer to question 4.