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Problem How does air resistance, gravity, and friction affect a

By Craig Jones,2014-04-08 21:11
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Problem How does air resistance, gravity, and friction affect a

    Problem: How does air resistance, gravity, and friction affect a falling object on earth?

Gathered information:

     (define or describe the following terms)

     air resistance

     gravity

     friction

    ; If the earth had no air, a vacuum, all objects would fall at exactly

    the same speed and would accelerate each second the same amount, 2 9.8 m/s.

    Hypothesis: Which will fall faster a feather, a penny, a flat piece of paper, or crumpled piece of paper? Which will fall slowest?

    Experiment: Drop a feather, a penny, a flat piece of paper, and a crumpled piece of paper from a measured distance and time how long it takes them to hit the ground.

Data:

    Object Distance Time Velocity Acceleration

    Feather

Penny

Flat paper

Crumpled

    paper

Conclusion:

    1. What prevents all objects from falling at the same speed?

a) weight b) air resistance c) gravity d) distance

    2. What causes meteors and the return of the space shuttle to heat up when landing on earth?

    a) weight b) friction from air resistance c) gravity d) distance

    3. If you could measure the smallest amount of temperature change, how would your objects’ temperature have change by the end of the fall?

a) stayed the same b) lower c) higher d) squared

    4. What keeps peoples’ hair laying down when they live on the under side of the earth?

a)time b) air resistance c) gravity d) distance

5. Was your hypothesis true or false?

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