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EM Radiation and Detection #2

Other Sciences

9th - 12th Grade

Used 4+ times

EM Radiation and Detection #2
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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

White light is actually a mix of ______ light.

red, orange, yellow, green, blue, indigo, and violet light
red, blue, and yellow
red, green, and blue
infrared, ultraviolet, and visible

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_________ can separate light into its component wavelengths.

A prism
A mirror
A star
A black hole

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A black body emits EM radiation because of its ________ .

size
temperature
gravitational pull
electric charge

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these is not an example of a black body?

a cloud of nitrogen gas at 250 K
the core of a star at 10,000,000 K
a human at 310 K
a flowing river of lava at 1270 K

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these objects would be hottest?

A blue star
A yellow star
A cloud of gas emitting radio waves
A star that emits more ultraviolet light than visible light.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The characteristic color bands that a hot, dilute gas emits are called...

emission spectra
absorption spectra
continuous spectra
black body radiation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The dark bands that appear in an otherwise continuous spectrum from a black body are called...

bright line spectra

dark line spectra

continuous spectra

black body radiation

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