Unit 7 Lab Review

Speed of Sound Lab

1. You have a tuning fork with a frequency of 1000 Hz. Your pvc pipe has a diameter of 1 cm. You find that the tube resonates when the top of the tube is 8.2 cm above the top of the water. Using this information what is the speed of sound?

2. In this lab what factor did we have to use to find the theoretical value for the speed of sound?

Speed of Sound Lab

Refraction/Reflection

1. What does the law of reflection state?2. What is refraction?3. How was the arrow formed by the light rays

passing through the lens different from the actual arrow?

Refraction/Reflection

1. The angle of incidence is equal to the angle of reflection

2. The bending of a wave as it goes from one medium to another

3. It was inverted (upside down)

Stations Lab

1. What is the optical device in which the refracted image is larger?

2. What is the optical device in which the reflected image is larger?

3. A lens causes light rays to converge.

4. Draw what happens to the light rays when five beams of light (such as those from a ray box) hit a concave lens.

5. If you walk into a bank or store and see your image and you’re all tiny and disfigured, what type of optical device are you peering into?

6. Name the optical device that causes reflected light rays to converge.

7. Describe the image of an object far away when viewed through a convex lens.

8. In the index of refraction lab which test tube was hardest to see? Why?

9. How did the size of the slits affect the pattern created by the laser shining through the diffraction plate?

1. Convex lens2. Concave mirror3. Convex5. Convex mirror6. Concave mirror7. Inverted 8. Oil in oil. The index of refraction of the material

inside the test tube was the same as the material in the beaker.

9. Smaller slits = more space between dots