Identifier:
M: K - 008
Concept Overview
Visual demonstration of acceleration due to gravity.
Lecturer Demonstration
| Steps to Follow | Expected Result |
|---|---|
| Flip the switch on the far right of the power supply to turn on the magnet. |  |
| Place the projectile to the magnet. | It will be held in place. |
| Turn the dial on the spark generator to 60 Hz. |  |
| When you are ready to release the projectile, flip the left switch on the power supply to release the projectile and start the sparking. |  |
| Turn off the switch and observe the tape. | The apparatus should spark considerably as the projectile falls. The marks on the spark tape should be farther and farther apart as you near the bottom of the apparatus. |
Suggestion for making the spark tape more visible:
Punch holes using an ice pick through each of the sparks and pull the paper across the document camera.
Historical References; P.S. , 1989
“A convenient way to show a large class the spark marks (spots) is to punch holes, using an ice pick, in the spark paper where the sparks are located and gradually pull the punched spark paper across the overhead.”
Video Demonstration
Tutorial:
Set-up Instructions for M: K - 8
Transcript:
There are no spoken words with this video.