Waves Inv 3 Review

If the angle of incidence in the diagram above is 50°, which statement is true? (Mark the one best answer.)

• The angle of reflection is 40°, because it is measured from the normal line, which is 90°.

• The angle of reflection is 50°, because it is equal to the angle of incidence.

• The angle of refraction is 60°, because it is greater than the angle of incidence.

• The angle of refraction is 50°, because it is equal to the angle of incidence.

3. What color is sunlight?

• Red

• Blue

• White

• Green

A student looks at a paper and sees that it is white. What color(s) is being reflected by the white paper?

• All colors

• No colors

• Only white

• Only black

A student looks at a paper and sees that it is white. What color(s) is being absorbed by the white paper?

• All colors are absorbed

• No colors are absorbed

• Only black is absorbed

• Only white is absorbed

A student looks at a shirt and sees that it is green. What color(s) is being reflected by the green shirt?

• Green

• Red

• Blue

• Yellow

A student looks at a shirt and sees that it is green. What color(s) is being absorbed by the green shirt?

• Red, Blue

• Green

• All colors

• None

A student looks at a white paper through a violet filter. What color will she see?

• White

• Violet

• Black

• Blue

A student looks at a white paper through a violet filter. Explain why the student will see the color described. Use the words absorb and reflect in your response.

• The violet filter absorbs all colors except violet, which it reflects.

• The violet filter reflects all colors except violet, which it absorbs.

• The violet filter absorbs all colors except white, which it reflects.

• The violet filter reflects all colors except white, which it absorbs.

A student looks at a table and sees that it is black. Mark an X next to each statement that is true.

• Blue wavelengths of light are absorbed by the table.

• Red wavelengths of light are reflected by the table.

• All colors are absorbed by the table.

• No colors are reflected by the table.

A student uses a spectroscope and sees light with a wavelength of 500 nanometers. What can he say about the light? (Mark all that apply)

• It transfers less energy than light with a wavelength of 600 nanometers.

• It has a higher frequency than light with a wavelength of 600 nanometers.

• It is visible.

• It is ultraviolet.

• It is infrared.