# Physical Science

## Chapter 13: Light

### Section 1 Self-Check Quiz-Eng.

 1. __________ materials only absorb and reflect light. Need a Hint? A) Translucent B) Transparent C) Clear D) Opaque 2. Which of these types of material transmits almost all of the light that strikes it? Need a Hint? A) translucent B) opaque C) reflective D) transparent 3. The angle at which light strikes a surface is __________ the angle at which it is reflected. Need a Hint? A) the same as B) greater than C) less than D) twice as great as 4. Why can't you see your reflection in a brick wall? Need a Hint? A) Light rays are reflected in only one direction from the rough surface. B) Reflection of light from a rough surface is regular reflection. C) Light rays are reflected in many directions from the uneven surface. D) No light is reflected from a brick wall. 5. Reflection of light waves from a smooth, mirror like surface is called __________ . Need a Hint? A) diffuse reflection B) irregular reflection C) refraction D) regular reflection 6. What property of a material indicates how much light slows down when traveling in it? Need a Hint? A) index of refraction B) density C) wave index D) index of diffusion 7. If the handle of your aquarium net appears to be bent more when it is placed into a glass aquarium full of water than it does when the tank is empty, which of the following statements is true? Need a Hint? A) The index of refraction of water is less than the index of refraction of glass. B) The index of refraction of water is greater than the index of refraction of air. C) The angle of incidence of the water is greater than the angle of reflection of the glass. D) The index of refraction of water is less than the index of refraction of air. 8. A glass prism __________ light, producing the individual colors of visible light. Need a Hint? A) refracts B) reflects C) diffuses D) diffracts