1 A) no curves at all B) only one curved side C) at least one curved side D) two curved sides 2 A) convex B) reflecting C) plane D) concave 3 A) the difference between the angle of incidence and the angle of reflection B) the distance from the center of the mirror to the focal point C) the distance from the mirror to the reflecting object D) the distance light travels along a reflective surface 4 A) The speed of light is reduced to zero. B) The speed of light changes from one medium to the next. C) The speed of light remains constant. D) The light is repelled by some materials. 5 A) convex B) plane C) reflecting D) concave 6 A) a car windshield B) magnifying glass C) a side mirror on a car D) nearsighted eyeglasses 7 A) only at right angles B) in a circle C) in all directions D) in a straight line 8 A) just as smooth as B) made of the same material as C) rougher than D) smoother than 9 A) flat B) convex C) plane D) concave 10 A) red, blue, and yellow B) yellow, magenta, and cyan C) black and white D) red, orange, yellow, green, blue, indigo, and violet 11 A) to gather as much light as possible B) to reflect light at an object C) to make objects appear closer D) to magnify an image 12 A) blue light is reflected while others are absorbed B) the blue car emits blue light C) blue light is absorbed while others are reflected D) the blue car is opaque 13 A) light refracts through them B) light reflects off them C) they emit light D) they absorb light 14 A) It gets larger. B) It gets smaller. C) It goes out of focus. D) It remains the same. 15 A) the optic nerve B) the lens C) the cornea D) the retina 16 A) convex lens B) concave mirror C) convex mirror D) plane mirror 17 A) faster in water than in air B) slower in water than in air C) the same speed in water and air D) fastest in water 18 A) The angle of incidence is equal to the normal. B) The normal is perpendicular to the reflecting surface. C) The angle of reflection is equal to the normal. D) The angle of incidence is equal to the angle of reflection. 19 A) mirrors B) cameras C) lenses D) computers 20 A) yellow B) green C) red D) blue
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