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11.1 Distance and Displacement
11.2 Speed and Velocity
11.3 Acceleration
How Does a Ramp Affect a Rolling Marble?
procedure
Form a ramp by placing one end of a 1-meter-long board on a stack of six identical books.
Have your partner release a marble at the top of the ramp. Use a stopwatch to measure the time the marble takes to reach the bottom. Record this time.
Predicting How many books tall would the stack have to be to double the time needed for the marble to reach the ramp's bottom? Record your prediction.
Test your prediction. Remove one book from the stack and repeat Step 2. Continue this process until the time needed for the marble to roll down the ramp doubles.
Think About it
Predicting What would happen to the time needed for the marble to roll down the ramp if the ramp were nearly horizontal?
Formulating Hypotheses If you keep adding books to the stack, will the time needed for the marble to roll down the ramp decrease indefinitely? Explain your answer.