MS 8th Grade Science P.8.6

The image of a bird in the window is the result of light being

• absorbed

• transmitted

• reflected

• refracted

The matter through which a mechanical wave travels is called a

• wavelength

• medium

• frequency

• conductor

As the wavelength of a wave increases, its frequency __________________.

• doubles

• remains constant

• is unaffected

• increases

• decreases

The __________________ of a wave is how many wavelengths pass a certain point each second.

• amplitude

• velocity

• compression speed

• frequency

A sound wave is produced when an object __________________.

• goes faster

• slows down

• vibrates

• produces light

Which wave has the longest wavelength?

• Wave A

• Wave B

• Wave C

• Wave D

When viewed from the side, the pencil appears to be broken. What process causes this to happen?

• absorption

• reflection

• evaporation

• refraction

Which statement best describes the property of light waves illustrated in the diagram?

• Some materials absorb light waves.

• Some materials reflect light waves.

• Light waves are refracted by some materials.

• Light waves are emitted by some materials.

Which feature best distinguishes one form of electromagnetic energy from another?

• color

• wavelength

• surface temperature

• distance traveled

Which type of electromagnetic energy has a shorter wavelength than ultraviolet waves?

• visible light

• microwaves

• x rays

• infrared light