Review of Electromagnetic Waves

REVIEW OF ELECTROMAGNETIC WAVES

After each slide of information, there will be review questions for you to answer.

Electromagnetic waves are waves that contain an electric field and a magnetic field and carry energy.

They travel at the speed of 3.0 x 10 ⁸ m/s in a vacuum. This is 300,000,000 m/s.

There are seven types of electromagnetic wave which form the electromagnetic spectrum (EMS).

Multiple Choice

Electromagnetic waves carry energy.

• True

• False

Multiple Choice

Electromagnetic waves travel in empty space at _________ m/s.

• 30,000

• 300,000

• 300,000,000

Multiple Choice

There are ____ different types of electromagnetic waves.

• 7

• 3

• 5

​Review the waves - note the differences!!!!

Electromagnetic Spectrum Review

Multiple Choice

Which of the following electromagnetic waves has the lowest energy?

• Visible Light

• Infrared

• Microwave

Multiple Choice

As the frequency of an electromagnetic wave increases, the amount of energy in that wave __________.

• Increases

• Stays the same

• Decreases

Multiple Choice

Which has the longest wavelength and, therefore, the LOWEST frequency/energy?

• Gamma Rays

• Radio Waves

• Infrared Waves

Multiple Choice

Which section of the spectrum is the ONLY one we can see?

• X-Rays

• Visible Light

• Ultraviolet Rays

Multiple Choice

Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength.

• Radio, Microwave, Infrared, Visible Light, Ultra Violet, X-Ray, Gamma.

• Visible, Microwave, Infrared, Ultraviolet, X-Ray, Gamma, Radio.

• Gamma, X-Ray, Ultraviolet, Visible, Infrared, Microwave, Radio.

• Microwave, Radio, Visible, Infrared, Ultraviolet, X-Ray, Gamma.

Multiple Choice

Electromagnetic waves with the longest wavelengths are ___________.

• gamma rays

• infrared waves

• radio waves

Multiple Choice

Which waves are the type that can give us suntans and sunburns?

• Infrared radiation

• Ultraviolet radiation

• Radio waves

Multiple Choice

In visible light, which color has the longest wavelength?

• Red

• Violet

• Yellow

Multiple Choice

Which rays can be felt as heat?

• Infrared Radiation

• Ultraviolet Radiation

• Microwaves

Multiple Choice

The blue section of the wave is measuring _________________.

• wavelength

• crest

• amplitude 

Multiple Choice

The acronym (letters) used to remember visible light is____________

• KTPERRY

• ROYGBIV

• DOGPOUND

Multiple Choice

The orange line is measuring the _________________________.

• wavelength

• amplitude

• trough

Multiple Choice

The higher the frequency the ______ the energy. 

• higher

• lower

Multiple Choice

This type of Electromagnetic wave shows a break in bones.

• gamma ray

• x-ray

• brokenometer

Multiple Choice

How much of the electromagnetic spectrum is visible?

• All of it

• Most of it

• Only a small part

Multiple Choice

If you're moving from gamma rays to microwave, describe how the energy level changes.

• Increases

• Decreases

• Energy level doesn't change

Multiple Choice

The __________ is the highest point of a wave.

• amplitude

• crest

• trough

• wavelength

Multiple Choice

The __________ is the trough point of a wave.

• amplitude

• crest

• trough

• wavelength