Chapter 1. Motion of a Marble Lab Name: __________________________________ - Obtain a ramp. Decide. You will be dropping a marble down this ramp. You need to set the origin of the movement and the point at which the movement will end. Find the distance the marble is going to travel in the ramp. Do this measure using the small ruler. Record your observation. Now find the distance using the larger ruler. Record your observations. 1st Measurement 2nd Measurement Question: Compare these measures. What can you deduct from them? What measuring method do you think is more precise? Why? - Next set up the ramp on the table in a way that is not flat. Build a device to release the marble without affecting its natural movement (hint, your fingers will not do) - Drop the marble 5 times. Measure and record the time it take for it to cover the distance you set in the ramp. Time 1 Time 2 Time 3 Time 4 Time 5 Average Time - Find the average speed for your experiment. - Is this average speed or constant speed? Explain why. - What can you say about the acceleration of the marble during the experience? EXTRA: What would you need to make the average speed of the marble equal to 10 cm/s? - Do this first using math. - Then try to get the results experimentally. Math approach: List what are the constants in this part of the experiment. Explain what the variable in this part of the experiment is. Why?
