7.4: Procedures
- Page ID
- 29153
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You will drop the g-Ball and several objects, and compare the acceleration of these items in air.
Setting the Standard
- Draw a table in which to record the data for the g-Ball. Do not fill in data until you have read the instructions for obtaining that data.
|
Distance (meters) |
Trial 1 (seconds) |
Trial 2 (seconds) |
Trial 3 (seconds) |
Average Time (seconds) |
Average Acceleration \(m/s^2\) |
|---|---|---|---|---|---|
|
1/2 |
|||||
|
1 |
|||||
|
2 |
- Place the bathroom rug on the floor or ground, under the place where you will be dropping the g-Ball.
- Practice with the g-Ball so that you know how it works prior to starting the trials for your data. Drop the g-Ball 3 times from each of the heights listed in your data table, and record the time shown on the g-Ball. This is the time it took for the g-Ball to fall to the floor once released.
- Calculate and record the average time for each of the heights from which you released the g-Ball.
- Use the equation in the introduction and algebra to solve for the average acceleration (a). Calculate and record the average acceleration of the g-Ball for each distance dropped.
Testing Everyday Objects
- Choose 6 objects of different masses and sizes; do not use the g-ball. Discuss how you will compare the acceleration of these objects when they are dropped from a height through air. Also, consider how you will compare the data for the 6 objects to the g-Ball. Draw a data table for the data you will be collecting.
|
Object |
Predicted Rank |
Trial 1 (seconds) |
Trial 2 (seconds) |
Trial 3 (seconds) |
Average Time (seconds) |
|---|---|---|---|---|---|
- List the 6 objects in your data table. Indicate next to each object, the predicted rank order for these objects to fall to the ground, from shortest time (1st) to longest time (6th).
- Find a safe location from which to drop your 6 objects, a height of two to three stories if possible. Measure and record this distance in meters under your data table.
- Proceed with dropping your 6 objects, 3 times each. Calculate and record the average time for each object.