Before light was considered a wave, how was it primarily viewed?

• As a continuous stream

• As a bunch of small particles

• As a wave

• As a magnetic field

What is the term for a ray of light that strikes a reflective surface?

• Incident ray

• Refracted ray

• Normal ray

• Reflected ray

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NGSS.MS-PS4-2

What is the angle between the normal and the incident ray called?

• Angle of reflection

• Angle of refraction

• Angle of deviation

• Angle of incidence

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What happens to light when it passes through a medium with minimal resistance?

• It gets refracted

• It gets reflected

• It gets absorbed

• It passes through

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NGSS.MS-PS4-2

What is the phenomenon called when light bends as it passes from one medium to another?

• Refraction

• Dispersion

• Diffraction

• Reflection

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NGSS.MS-PS4-2

What is the index of refraction for a medium where light travels at the same speed as in a vacuum?

• 0

• Less than 1

• 1

• Greater than 1

How does light behave when it moves from a less dense medium to a denser medium?

• It bends toward the normal

• It travels in a straight line

• It bends away from the normal

• It gets absorbed

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NGSS.MS-PS4-2

What is Snell's Law used to calculate?

• The relationship between the angles of incidence and refraction

• The angle of reflection

• The speed of light in a vacuum

• The wavelength of light

If the angle of incidence is 30 degrees and the angle of refraction is 60 degrees, what can be inferred about the media?

• Light travels faster in the first medium

• The second medium is denser than the first

• The first medium is denser than the second

• Both media have the same density

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NGSS.MS-PS4-2

What is the speed of light in a medium with an index of refraction of 1.5?

• 1.5 x 10^8 m/s

• 2.5 x 10^8 m/s

• 3 x 10^8 m/s

• 2 x 10^8 m/s

Tags

NGSS.MS-PS4-2