light waves

light waves

Multiple Choice

Wavelength and frequency determine color

• True

• False

Multiple Choice

Red=longest wavelength, Highest frequency

• True

• False

Multiple Choice

Violet=Longest wavelength, highest frequency

• True

• False

Multiple Choice

Transparent means:

• ◦Allows most light to pass through

  ◦Appears blurry

• ◦No light passes through

  ◦Light is absorbed

• ◦Allows all light to pass through

  ◦See clearly

Multiple Choice

Translucent means:

• ◦Allows most light to pass through

  ◦Appears blurry

• ◦No light passes through

  ◦Light is absorbed

• ◦Allows all light to pass through

  ◦See clearly

Multiple Choice

Opaque means:

• ◦Allows most light to pass through

  ◦Appears blurry

• ◦No light passes through

  ◦Light is absorbed

• ◦Allows all light to pass through

  ◦See clearly

Multiple Choice

Waves reflect off surfaces according to the law of reflection

• True

• False

Multiple Choice

Intensity means:

• to reflect off a bumpy surface

• ◦The amount of energy that passes through a square meter of space in one second

• The wavelength of the light

• The frequency of the wave

Multiple Choice

Intensity

◦Depends on the amount of energy a source emits

• true

• false

Multiple Choice

Intensity ◦Depends on lights distance from the source

• true

• false

Multiple Choice

—Luminous object

◦Is the color of the light it absorbs

• True

• False

Multiple Choice

—Opaque object

◦Is the color it absorbs

• True

• False

Multiple Choice

Transparent/translucent objects

◦Appears to be the color it absorbs

• true

• false

Multiple Choice

Transparent/translucent objects

◦Appears to be the color of the filter

• True

• False

Multiple Choice

Red, green, and blue are considered the primary colors of light

• True

• False

Multiple Choice

Black Reflects all colors, but reflects a small amount of light

• True

• False

Multiple Choice

White reflects all colors of light

• True

• False

Multiple Choice

Blue wavelengths are longer than red, so they scatter

• True

• False

Multiple Choice

The blue light scatters in all directions, making the sky appear blue

• True

• False

Multiple Choice

After the blue scatters, remaining light from the sun appears yellow

• True

• False

Multiple Choice

Light changes speed as it moves from one medium to another

• True

• False

Multiple Choice

If the light is at an angle, it reflects

• True

• false

Multiple Choice

If the light is at an angle, it refracts

• True

• False

Multiple Choice

◦Refractions causes you to see sun after its below the horizon

• True

• False