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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
focal light
B
wave length
C
light wave
D
light ray
2) the point at which light becomes focused
A
optical axis
B
focal axis
C
optical point
D
focal point
3) distance along the optical axis from the center of the mirror to the focal point
A
focal length
B
focal axis
C
optical length
D
optical axis
4) a mirror or lens that curves inward and causes light waves to converge or meet
A
concave lens
B
convex lens
C
convex mirror
D
concave mirror
5) a mirror or lens that curves outward and causes light waves to diverge or spread apart
A
convex lens
B
concave mirror
C
convex mirror
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
diamond
C
air
D
water
8) a mirror or lens that curves inward and causes light waves to diverge
A
convex lens
B
concave lens
C
convex mirror
D
concave mirror
9) a mirror or lens that curves outward and causes light waves to converge or meet
A
convex mirror
B
concave lens
C
concave mirror
D
convex lens
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, black
B
white, blue
C
black, green
D
black, white
*select an answer for all questions
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