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NS2-M3C21 - Electronics Quiz 60

Authored by Chief Gibson

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9th Grade

NS2-M3C21 - Electronics Quiz 60
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21 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following is an example of a mechanical wave? (Input all that apply, then push the ENTER button.)

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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