Physical Science

Chapter 13: Light

Section 3 Self-Check Quiz-Eng.

1.
Which of the following best describes an incandescent light?
A)gives off light when phosphors absorb ultraviolet radiation
B)contains argon gas at low pressure
C)gives off light when tungsten filament is heated
D)uses the least amount of electricity to produce light
2.
What makes a neon light glow?
A)The filament is heated until it glows, producing light.
B)Phosphors absorb ultraviolet light from gas molecules and begin to glow.
C)The gas inside it is heated until it glows, producing light.
D)Electrons collide with the gas molecules inside it and produce visible light.
3.
__________ light is light of only one wavelength that travels with its crests and troughs aligned.
A)Incoherent
B)Coherent
C)Incandescent
D)Compact
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