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Ch. 19=Part 5
Test Description: Light, Mirrors, and Lenses
Instructions: Answer all questions to get your test result.
1) a beam of light
A
wave length
B
light wave
C
focal light
D
light ray
2) the point at which light becomes focused
A
optical axis
B
optical point
C
focal point
D
focal axis
3) distance along the optical axis from the center of the mirror to the focal point
A
optical length
B
focal axis
C
focal length
D
optical axis
4) a mirror or lens that curves inward and causes light waves to converge or meet
A
convex lens
B
concave mirror
C
concave lens
D
convex mirror
5) a mirror or lens that curves outward and causes light waves to diverge or spread apart
A
concave mirror
B
convex mirror
C
convex lens
D
concave lens
6) What is the speed of light in empty space?
A
197,000,000 m/s
B
127,000,000 m/s
C
300,000,000 m/s
D
227, 000, 000 m/s
7) Light waves travel faster through which of the following?
A
vacuum
B
water
C
diamond
D
air
8) a mirror or lens that curves inward and causes light waves to diverge
A
concave mirror
B
convex mirror
C
convex lens
D
concave lens
9) a mirror or lens that curves outward and causes light waves to converge or meet
A
convex mirror
B
convex lens
C
concave lens
D
concave mirror
10) When an object reflects reflects all the light waves that strike it, it looks ______________ and when an object reflects none of the light waves that strike it, it looks _____________.
A
white, blue
B
black, green
C
black, white
D
white, black
*select an answer for all questions
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