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EM Spectrum
Test Description: Review for MS Obj 8.2e
Instructions: Answer all questions to get your test result.
1) The portion of the electromagnetic spectrum most useful to living things is...
A
Visible light
B
Ultraviolet radiation
C
Infrared radiation
D
Blacklight
2) The frequencies of the electromagnetic spectrum with the highest energy are of...
A
Microwaves
B
X-rays
C
Gamma rays
D
Infrared light
3) Visible light has a higher frequency than...
A
Gamma rays
B
X-rays
C
Infrared rays
D
Ultraviolet rays
4) X-ray devices use electromagnetic waves to create images that let doctors see inside the human body. Which best describes how x-rays are able to help create these images?
A
X-rays cause bones of the human body to give all of visible light
B
X-rays pass through soft tissue and are absorbed by hard tissue
C
X-rays, soft tissue of the human body to become transparent
D
X-rays change speed when they move from one material to the another
5) Which type of wave has the shortest wavelength?
A
X-ray
B
All have the same wavelength
C
Microwave
D
Gamma
6) Which of the following shows electromagnetic waves in order from highest to lowest energy level?
A
Radio waves, gamma rays, microwaves
B
X-rays, ultraviolet light, radio waves
C
Ultraviolet light, gamma rays, infrared light
D
X-rays, radio waves, ultraviolet light
7) What two properties of an EM wave change as you move from one part of the EM spectrum to another?
A
Distance and energy
B
Wavelength and frequency
C
Mechanical waves and compression waves
D
Speed and energy
8) Why does grass appear green?
A
It reflects green light and absorbs all other wavelengths.
B
It absorbs green light and reflects all other wavelengths.
C
It absorbs all wavelengths of light and then admits only green.
D
It reflects all wavelengths of light and green is the brightest.
9) Which of these statements about frequency is true?
A
Visible light has higher frequency than any other EM waves.
B
There is no relationship between wavelength and frequency.
C
Waves with long wavelengths have low frequencies.
D
Waves with long wavelengths have high frequencies.
10) In order for the human body to make vitamin D, some exposure to what kind of lightwave is necessary?
A
X-rays
B
Microwaves
C
Ultraviolet waves
D
Infrared waves
*select an answer for all questions
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