- 7. Flint glass has an index of refraction of n=1.62 . Diamonds have a greater density than flint glass. a. Would you expect diamonds to have a higher or lower index of refraction than flint glass? b. Would you expect the speed of light to be faster or slower in diamonds than in flint glass? 8. What happens to the frequency of the light waves as they enter a new medium? (decrease , same, or increase) 9. Give two sources of error that might exist in your lab . (human error is not an acceptable answer)
- 6. Suppose that when a light ray travels from water to an unknown liquid, it is bent toward the normal . But, when it travels from crown glass to the same liquid it is bent away from the normal. Rank the three substances (unknown liquid, water,crown glass) from lowest index of refraction to highest index of refraction.
- Forces and Newton's Laws of Motion Matching: 1. A pushor a pull, measured in Newtons 2. Theattractive force between two objects. The strength on earth is 9.8 N/kg. 3. A person's __ is greater on Earth than it is on the moon. 4. A person's __ is the same on Earth as it is on the moon 5. The sum of all forces acting on an object. a. Force b. Net force c. Gravity d. Mass e. Weight
- 5. When light enters a medium with greater density, what happens to the speed of light?
- 8) A sample of radioactive isotope decays by 90% in 20. min. What is its half-life?
