Electromagnetic Waves and Properties

Which statement BEST illustrates inverse proportionality and how it affects energy?

• The wavelengths of radio waves are much shorter than the wavelength of microwaves. Therefore, a radio wave carries much less energy than a microwave.

• The wavelengths of radio waves are much shorter than the wavelength of microwaves. Therefore, a radio wave carries much more energy than a microwave.

• The wavelengths of radio waves are much longer than the wavelength of microwaves. Therefore, a radio wave carries much less energy than a microwave.

• The wavelengths of radio waves are much longer than the wavelength of microwaves. Therefore, a radio wave carries much more energy than a microwave.

Tags

NGSS.HS-PS4-1

Which of the following statements correctly describes the relationship between frequency and wavelength in the electromagnetic spectrum?

• As frequency increases, wavelength decreases.

• As frequency decreases, wavelength decreases.

• Frequency and wavelength are independent of each other.

• As frequency increases, wavelength increases.

Tags

NGSS.HS-PS4-1

A slinky can be used to create two different types of waves. Which is a similarity between a mechanical wave demonstrated with a slinky and an electromagnetic wave?

• Transverse mechanical waves and electromagnetic waves both have crest and troughs.

• Longitudinal mechanical waves and electromagnetic waves both have crest and troughs.

• Transverse mechanical waves and electromagnetic waves both have compressions and rarefactions.

• Longitudinal mechanical waves and electromagnetic waves both have compressions and rarefactions.

What question could be asked to determine the difference between a sound or a light wave?

• What are the waves carrying?

• How are the waves produced?

• In what direction does the wave travel?

• Do the waves need a medium to travel in?

Which of the following properties is unique to electromagnetic waves compared to mechanical waves?

• They are always longitudinal.

• They have compressions and rarefactions.

• They require a medium to propagate.

• They can travel through a vacuum.

What is the primary factor that determines the speed of a wave in a given medium?

• The properties of the medium.

• The amplitude of the wave.

• The frequency of the wave.

• The wavelength of the wave.

Which of the following statements is true about the energy carried by electromagnetic waves?

• Energy is independent of frequency and wavelength.

• Energy is directly proportional to frequency.

• Energy is inversely proportional to frequency.

• Energy is directly proportional to wavelength.

Tags

NGSS.HS-PS4-1

Why is ultraviolet light located to the right of visible light on the electromagnetic spectrum?

• It has lower energy than visible light.

• It has higher frequency than visible light.

• It has a larger amplitude than visible light.

• It has a longer wavelength than visible light.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which wave behavior are illustrated in the model?

• Reflection and refraction

• reflection and absorption

• refraction and absorption

• refraction and diffraction

Tags

NGSS.MS-PS4-2

Consider the following models. Which comparison about the models is correct?

• Sound and light waves can both be reflected when they hit certain surfaces.

• Sound and light waves can both be refracted when they hit certain surfaces.

• Sound and light waves will both be reflected when they hit any surface.

• Sound and light waves will both be refracted when they hit any surface.

Tags

NGSS.MS-PS4-2