Lesson 8.3 Electromagnetic Waves

Question 1

Which electromagnetic wave has the highest frequency?

Revolt · Accepted Answer

ultraviolet

Question 2

Which electromagnetic wave transfers the most energy?

Revolt · Accepted Answer

X-rays

Question 3

⇒ 3.41

Revolt · Accepted Answer

3.41

Question 4

In which media would light have the shortest wavelength?

Revolt · Accepted Answer

diamond

Question 5

Complete the passage to describe polarization.

Revolt · Accepted Answer

✔ horizontal; Unpolarized light is filtered by a polarizer that has a vertical plane, allowing light with oscillations to pass through and blocking light that oscillates in other directions.: vertical; Then, another polarizer that has a plane is used to block the polarized light.: horizontal

Question 6

Then, another polarizer that has a plane is used to block the polarized light.

Revolt · Accepted Answer

horizontal

Question 7

Warming and cooking food:

Revolt · Accepted Answer

microwaves

Question 8

What electromagnetic waves are used in these applications?

Revolt · Accepted Answer

radio waves; Diagnosing illnesses:: radio waves; Warming and cooking food:: microwaves; Transmitting data from remote controls to televisions:: infrared waves

Question 9

Transmitting data from remote controls to televisions:

Revolt · Accepted Answer

infrared waves

Question 10

Which are properties of an electromagnetic wave? Check all that apply.carries energy only through mattertravels at the speed of lightmade of magnetic fieldsmade of electrical fieldsradiates from a source

Revolt · Accepted Answer

travels at the speed of light; made of magnetic fields; made of electrical fields; radiates from a source

Lesson 8.3 Electromagnetic Waves Answers

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