EM Waves and Spectrum Lesson

Multiple Choice

______ waves are vibrations in electrical and magnetic fields. 

• Sound
• Mechanical
• Electromagnetic
• Compression

Multiple Choice

For waves in any medium, as the wavelength decreases, what happens to the frequency?

• It also decrease
• It stays the same
• It increases

Multiple Choice

EM waves are always____________

• Transverse
• Compression
• Longitudinal
• Seismic

Multiple Choice

EM waves________________travel through space.

• Never
• Cannot
• Can
• Wish they could

Multiple Choice

EM waves _______ travel the same speed in a vacuum. 

• never
• sometimes
• always
• can

Multiple Choice

All electromagnetic waves have _________ wavelengths and ________ frequencies.

• different, similar
• different, different
• similar, similar
• similar, different

Electromagnetic Spectrum

​Energy

The energy of an electromagnetic wave is directly proportional to the frequency of the wave. As the frequency of an electromagnetic wave increases, the energy also increases.

Multiple Choice

What is the Electromagnetic Spectrum?

• A Group of Energy Waves That are Visible to the human Eye.

• The name Given to a Group of Waves that mostly are Invisible and can travel through empty Or outer Space.

Multiple Choice

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

• increases.
• decreases.
• stays the same.

Multiple Choice

Shorter Waves have ____Energy,Longer Waves___Energy?

• Lower,Higher

• Higher,Lower

Multiple Choice

The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of:

• increasing amplitutde
• increasing wavelength
• increasing frequency

Multiple Choice

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

• Gamma Rays
• Radio Waves
• Visible Light
• Infrared rays

Multiple Choice

Which type of waves are used in broadcasting?

• radio waves
• infrared rays
• x-rays

Multiple Choice

Cell phones use_____________waves.

• Microwaves
• Gamma
• XRays
• Radio 

Multiple Choice

Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?

• ultraviolet rays
• microwaves
• infrared rays

Multiple Choice

What is the order of visible light in the Electromagnetic Spectrum?

• Red,Yellow,Orange,Green,Blue,Indigo,Violet

• Red,Orange,Yellow,Green,Blue,Indigo,Violet

• Violet,Indigo,Green,Blue,Red,Orange,Yellow

• Violet,Blue,Red,Orange,yellow,green,Indigo

Multiple Choice

The color blue has more energy than the color red.

• True

• False

Multiple Choice

How much of the electromagnetic spectrum is visible?

• All of it
• None of it
• Most of it
• Only a small part

Multiple Choice

Which of the following has wavelengths longer than microwaves?

• Infrared waves
• Radio waves
• Visible light

Multiple Choice

Which electromagnetic waves are used in ovens and cell phone communications?

• Infrared rays
• ultraviolet rays
• microwaves

Multiple Choice

_____________________light is the only type of EM wave detected by the human eye.

• Red
• Gamma
• Microwave
• Visible

Multiple Choice

This type of EM wave can cause skin cancer. 

• microwaves
• ultraviolet ray
• radio
• infrared

Multiple Choice

Electromagnetic waves that help your body produce vitamin D are called?

• ultraviolet rays
• x-rays
• gamma rays

Multiple Choice

Which electromagnetic waves help doctors detect broken bones inside your body?

• gamma rays
• x-rays
• ultraviolet rays

Multiple Choice

Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy

• Radio waves
• Ultraviolet Rays
• Gamma Rays
• X-rays

Multiple Choice

Which electromagnetic waves allow us to diagnose & treat cancer?

• Gamma rays
• X-rays
• Ultraviolet rays

Multiple Choice

Which of the following has frequencies higher than ultraviolet rays?

• visible light
• infrared rays
• x-rays

Multiple Choice

Which of the following lists the electromagnetic waves in order of decreasing frequency?

• X-rays, microwaves, infrared rays
• UV rays, visible light, x-rays
• infrared rays, microwaves, radio waves

Multiple Choice

EM waves ________ a medium.

• require
• don't require
• can have
• sometimes have

Multiple Choice

The blue section of the wave is measuring _________________.

• wavelength
• crest
• trough
• amplitude