Mechanics Module 5 Equipment List and Setup
Table of contents
|
What |
Qty |
Activities |
|
Spring |
1 |
7, 8 |
|
200g hook mass |
2 |
7, 8 |
|
retort stand |
1 |
7, 8, 14 |
|
bosshead clamp |
2 |
one for 7, 8 |
|
claw clamp |
1 |
7, 8, 14 |
| meter stick | 1 | 7, 8, 14 |
|
Motion Sensor |
1 |
8, 18 |
|
Jumping toy |
1 |
14 |
|
Force Sensor |
1 |
14 |
|
standoff adapter for force sensors |
1 |
14 |
|
mounting bolts for force sensors |
1 |
14 |
| ruler |
1 |
14 |
|
6" 1/2" dia rod |
1 |
14 |
|
external webcam (Creative LiveCam) |
1 |
14 |
|
Metric Tape Measure |
1 |
14 |
| 2m track | 1 | 18 |
|
1cm spacer |
1 |
18 |
|
end stops for track |
2 |
18 |
| cart | 1 |
18 |
Setup Notes and Equipment Sources:
Note for activity 8: The hanging masses are hollow and sometimes the annular-shaped bottom surface is not a reliable reflector of the ultrasound from the Motion Sensor when it is in the narrow beam mode. Make sure to use the wide beam setting on the motion sensor, and ensure the mass and spring has sufficient distance from the pole of the retort stand to accomodate the wide beam.
The spring-mass system should have a period of oscillation of about 0.7 seconds. The mount needs to be high enough that when it is vertically oscillating with a maximum amplitude of about 3 cm, at the bottom of the oscillation the mass can be at least 15 cm above the Motion Sensor.
Old poppers were purchased from Educational Innovations:
http://www.teachersource.com/Energy/EnergyConversion/DropperPopper.aspx
There it called a “Dropper Popper”, Item # POP-100. They are apparently made in Australia. These have subsequently been replaced with a spring loaded jumping toy. For the equipment list for the original dropper popper please refer to versions prior to 2021.
DMH – October/08