Ray Optics Module Equipment List and Setup
Table of contents
|
What |
Qty |
Activities |
|
Mirror which can be balanced vertically, perhaps 10 cm by 20 cm |
1 |
2 |
|
Small sign on thin paper with the bold word “Charles Dodgson” printed on it |
1 |
2 |
|
Basic Optics Light Source, Pasco OS-8470 |
1 |
3, 6, 7, 10 |
|
Glass Rhombus [Hubbard 7-909-60] |
1 |
3 |
|
Small semi-circular protractor, 10 cm in diameter |
1 |
3, 6 |
|
Ruler |
1 |
3, 6, 7, 10 |
|
jar of canola oil |
1 |
5 |
|
small beaker |
1 |
5 |
|
pyrex test tubes |
4 |
5 |
|
Flat Convex Lens [Hubbard 7-909-60] |
1 |
6 |
|
Flat Concave Lens [Hubbard 7-909-60] |
1 |
6 |
|
2.2 meter Track, Pasco ME-9452 |
1 |
7, 10 |
|
Basic Optics Viewing Screen, Pasco OS-8460 |
1 |
7, 8, 10 |
|
Dynamics Optics Carriage, Pasco OS-8472 |
3 |
7, 10 |
|
board with 5 mm diameter hole in it, homemade |
1 |
7 |
|
Lens Holder, Pasco OS-8474 with 50 mm Diameter, 100 mm Focal Length convex lens “f/2A”, PASCO SE-7582 |
1 |
8, 10 |
|
Lens Holder, Pasco OS-8474 with 50 mm Diameter, 200 mm Focal Length convex lens “f/4B”, PASCO SE-7583. The focal length seems to be either 200 mm or 250 mm. |
1 |
8, 10 |
Setup Notes:
Activities 3, 6, 7, 8 and 10: The lights in the room need to be dimmed and the blinds lowered for these activities to be effective.
Activity 5: NOTE FROM HARLOW (Dec.2 08) to technologists: I have not tested this! The idea is that the oil is clear and the index of refraction of the pyrex rod is the same as the oil so it should disappear..
(as of 2018) we place 2 pyrex test tubes in a jar of canola oil and two in a beaker of water. The test tubes in each vessel are filled also, one with canola oil and one with water.
Activity 7: The board with the 5 mm diameter hole in it should be mountable on the track, held vertically, similar to the Viewing Screen. The hole should be at the same height as the the light-hole in the Light Source, or about 13.4 cm above the top surface of the aluminum track.
Activity 8: There needs to be a distant light source in the room, for example, a bare light bulb at both the front and back of the room. Every table should be able to get a line of sight to the bulb from near their table which is at least 4 m away. Note that for this activity they hold the lens and screen so the 2.2 m track does not have to be pointed at the distant light source!
Activities 8 and 10: The feet on the tracks should be set to 5 cm and 150 cm.Note when ordering from PASCO the SE-7582 is a set of 6 identical f/2 lenses, and the SE-7583 is a set of 6 identical f/4 lenses. Only one of each lens is needed for each setup.
JJBH – Dec/08