2.1 Light Quiz

What is a wave trough?

Lowest point of a wave.

List the waves in order from the shortest wavelength to the longest.

1. Gamma Rays 2. Ultra Violet 3. Visible Light 4. Infrared 5. Microwave 6. Radio

List the waves in order from the longest wavelength to the shortest wavelength.

1. Radio 2. Microwave 3. Infrared 4. Visible Light 5. Ultra Violet 6. Gamma Rays

List colors from highest to lowest frequency.

1. Red 2. Orange 3. Yellow 4. Green 5. Blue 6. Violet

List colors from longest to shortest wavelength.

1. Red 2. Orange 3. Yellow 4. Green 5. Blue 6. Violet

List colors from lowest to highest frequency.

1. Violet 2. Blue 3. Green 4. Yellow 5. Orange 6. Red

List the colors from shortest to longest wavelength.

1. Violet 2. Blue 3. Green 4. Yellow 5. Orange 6. Red

Why are objects their respective colors?

An object absorbs all colors of the rainbow except for the color that we see. The color that we see reflects off of the object, and that's how we see it.

Which color wave has the highest energy? Red, green, or blue?

Blue has a higher one.

Which color wave has the highest frequency? Red, green, or blue?

Blue has a higher one.

Wavelength

Distance between two wave troughs or crests.

Which wave has a higher frequency? Radio, visible, ultraviolet, or gamma?

Gamma.

What is the wave crest?

Highest point of a wave.

What does index of refraction mean?

How fast a light travels through a material.

Why does red refract the least?

It does because it has the longest wavelength, and a lower frequency. The higher the frequency the more the light will react.

Why does violet refract the least?

It does because it has the shortest wavelength, and a higher frequency. The lower the frequency the less the light will react.

Compare waves to the right of the electromagnetic spectrum with visible light.

They have longer wavelengths, lower frequencies, lower energy.

Compare waves to the left of the electromagnetic spectrum with visible light.

They have shorter wavelengths, higher frequencies, higher energy.

Which color refracts the most?

Violet does the most.

Which color wave has the greatest energy?

Violet has the greatest.

Which color wave has the highest frequency?

Violet has the highest.

Which color has the shortest wavelength?

Violet has the shortest one.

Which color waves have the shortest wavelength?

Violet has the shortest.

What are mechanical waves?

Waves that require a medium to travel through.

What are electromagnetic waves?

Waves that travel through a vacuum, which are produced by vibration of charged particles.

Reflection

When light bounces off an object.

Scattering

When light passes through an imperfect medium.

Formula:

wavelength = speed of light/frequency

How does the index of refraction affect light as it goes from liquid back to a gas?

The speed increases and bends less.

How does the index of refraction affect light as it goes from gas to a liquid?

The speed slows down and bends more.

Dispersion.

The spreading of white light when it disperses into all the colors of the spectrum.

Which wave has a longer wavelength? Radio, visible, ultraviolet, or gamma?

Radio.

Which wavelengths are longer than visible light? Gamma, Ultraviolet, or radio?

Radio.

Which color refracts the least?

Red does the least.

Which color wave has a longer wavelength? Red, green, or blue?

Red has a longer one.

Which color has the longest wavelength?

Red has the longest one.

Which color waves have the longest wavelength?

Red has the longest.

Which color wave has the lowest energy?

Red has the lowest.

Which color wave has the lowest frequency?

Red has the lowest.

What does refraction mean?

The change in direction of a wave passing from one medium to another.

What is the amplitude of a wave?

The distance between the middle and crest or trough of a wave.

What is the relationship between energy and frequency?

The higher the energy the higher the frequency.

What is the relationship between energy and wavelength?

The higher the energy the shorter the wavelength.

What is the relationship between frequency and wavelength?

The higher the frequency the shorter the wavelength.