Oscillations Module Equipment List and Setup
Table of contents
|
What |
Qty |
Activities |
|
Spring-mass system mounted on a ring stand. The mass should be about 200 grams. |
1 |
4 |
| another coupleof hook masses (ie 100 g and 200 g) so that the equilibrium spring length of more than one value of mass can be measured, to find spring constant | 2 | 4 |
| masking tape | 1 | 4 |
| meter stick | 1 | 4 |
|
Motion Sensor II, Pasco CI-6742A |
1 |
4 |
|
Rotary Motion Sensor (RMS), Pasco CI-6538 |
1 |
9 |
|
Rod and Mass for the RMS |
1 |
9 |
Setup Notes
Note for activity 4: The hanging masses are hollow and sometimes the annular-shaped bottom surface is not a reliable reflector of the ultrasound from the Motion Sensor. Be sure to use the wide beam setting on the motion sensor. Masking tape should not be necessary but *can* be used to make the bottom surface more solid to reflected sound.
The spring-mass system for Activity 4 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.
NOTE: if combinations of masses are used in order to more accurately measure the spring constant via Hooke’s Law, be sure to move the sensor out of the way in case masses fall!
The RMS should be mounted on a ring stand, with the rod and mass attached.