Light Waves

What type of waves does the sun emit that reach Earth?

• Transverse waves

• Longitudinal waves

• Surface waves

• Mechanical waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What determines the color of light?

• Amplitude and energy of the wave

• Speed and frequency of the wave

• Wavelength and frequency of the wave

• Brightness and amplitude of the wave

Tags

NGSS.HS-PS4-1

Sophia, Elijah, and Anika are camping at night. They notice that the campfire appears dimmer as they move away from it. Why does this happen?

• The light from the campfire slows down in the open air

• The light from the campfire is absorbed by the air

• The light from the campfire spreads over a larger area as they move away from it

• The wavelength of the light from the campfire increases as they move away from it

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NGSS.MS-PS4-2

Which statements about light travel are true?

• Light travels at the same speed in water, glass, and diamond

• Light travels fastest in a vacuum

• Light can’t travel through any mediums

• Light travels slower in mediums (such as air or water)

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which color has the shortest wavelength and highest frequencies?

• Highest amplitude

• Lowest frequencies

• Violet

• Lowest amplitude

How are amplitude and energy of a light wave related to its frequency and wavelength?

• Amplitude and energy are inversely proportional to frequency and wavelength

• Amplitude and energy are independent of frequency and wavelength

• Amplitude and energy decrease with frequency and wavelength

• Amplitude and energy increase with frequency and wavelength

Tags

NGSS.MS-PS4-1

What does a dog house need in a warm climate?

• A color with high light reflectance (LRV)

• A color with low light reflectance (LRV)

• A color with high energy absorption

• A color with low energy absorption

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the equation for calculating wave speed using wavelength and frequency?

• v = λ ÷ f

• v = λ + f

• v = λ - f

• v = λ × f

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NGSS.HS-PS4-1

What is the unit of frequency?

• Meters per second (m/s)

• Hertz (Hz)

• Waves per second (W/s)

• Newton (N)

What is the relationship between energy and amplitude in a wave?

• Energy is proportional to wave speed

• Energy is inversely proportional to amplitude

• Energy is proportional to wavelength

• Energy is directly proportional to amplitude

Tags

NGSS.MS-PS4-1