Which of the following is an example of a mechanical wave? (Input all that apply, then push the ENTER button.)
NS2-M3C21 - Electronics Quiz 60

Quiz
•
Other
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9th Grade
•
Hard
Chief Gibson
FREE Resource
21 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
ocean waves
sound waves
light waves
none of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Choose the answer that corrects the statement. Visible light waves are at the upper end of the frequency spectrum, while x-ray waves fall at the lower end.
Change “visible light” to “audible”
Change “x-ray” to “audible”
Change “upper” to “lower”
All of the above are correct
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following are types of wave variations? (Input all that apply, then push the ENTER button.)
trapping
retraction
diffraction
none of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns
Radar
Carrier wave
Trapping
Hertz
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To cause the amplitude, frequency, phase, or intensity of a carrier wave to vary in accordance with a sound wave or other signal, the frequency of the signal wave usually being very much lower than that of the carrier
Modification
Modulation
Metamorphosis
Multiplexing
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jackson and Pember are standing at different distances from a cliff. They both shout. Jackson hears his echo in 6 thousandths of a second. Pember hears his echo in 0.6 seconds. Who is closer to the cliff?
Jackson
Pember
They are the same distance.
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Choose the answers to correct the statement. (Input all that apply, then push the ENTER button.) Electronic warfare includes three major subdivisions: Electronic Awareness (EA); Evaluative Protection (EP); Electronic Warfare Support (ES)
Change “Awareness” to “Attack”
Change “ES” to “EWS”
Change “Electronic” to “Evaluative”
Change “Evaluative” to “Electronic”
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