Light, Mirrors, & the Eye

Which of these provides the best explanation for why the pencil appears broken?

• The pencil absorbs the light rays that hit it.

• Water reflects light rays away from the pencil.

• Light rays are bent by the water in the glass.

• The surface of the water reflects the light rays.

Caleb is sitting near the window on a sunny day. When he closes the curtain, the room becomes darker. What property of the curtain allows it to make the room darker?

• The curtain absorbs light.

• The curtain is brightly colored.

• The curtain folds easily.

• The curtain is rectangular shape.

What makes it possible to see an object when looking through a periscope?

• It contains mirrors that reflect the object.

• It magnifies small objects so they can be seen.

• It absorbs the light rays passing through it.

• It separates the light into different colors.

Which of the following is demonstrated when light bounces off of mirrors or shiny surfaces?

• Scattering

• Refraction

• Absorption

• Reflection

Which of the following types of electromagnetic radiation has the shortest wavelengths?

• Infrared

• Ultraviolet

• Visible light

• Radio waves

Our eyes perceive colors because of differences in which of the following properties of light?

• Intensity

• Wavelength

• Angle

• Source

Adrian is observing a piece of white paper. His eye perceives the paper to be white because his eye is receiving what kind of light?

• Light in all the colors of the visible spectrum.

• Light mostly at the ultraviolet end of the spectrum.

• Light mostly at the infrared end of the spectrum.

• Light the paper produces when heated by the Sun.

Adrian is observing a piece of white paper. His eye perceives the paper to be white because his eye is receiving what kind of light?

• Light in all the colors of the visible spectrum.

• Light mostly at the ultraviolet end of the spectrum.

• Light mostly at the infrared end of the spectrum.

• Light the paper produces when heated by the Sun.

Sunlight is a mixture of electromagnetic waves, ranging from infrared to ultraviolet. Which of the following types of electromagnetic radiation has the longest wavelengths?

• Infrared

• Ultraviolet

• Visible light

• Radio waves

Brooke wakes up in the morning to rind a rainbow produced by light shining through the fish tank near her window. Which of the following types of electromagnetic radiation produced the rainbow that Brooke saw?

• Ultraviolet

• Infrared

• White light

• Gamma rays