Sound and Light

Which items are translucent?

• Dark window shades

• Clean windows

• Sunglass lenses

• Painted walls

A boy works all night, so he wants to sleep during the day. What type of shade should he put on his window?

• Transparent

• Translucent

• Opaque

• Reflective

Which item is transparent?

• metal bike

• Grassy field

• Clear glass

• painted bench

Reflection is-

• light bouncing off a surface

• the absorption of light

• the bending of light

• light breaking into colors

Which tool can be used to separate white light into colors of the visible spectrum?

• a mirror

• a prism

• a lens

• a wave

In order for humans to make sounds, the vocal cords must produce —

• vibrations

• saliva

• pitch

• wavelengths

Which item reflects light?

• mirror

• magnifying glass

• prism

• wax paper

Sound is a form of

• light

• energy

• machine

• frequency

Mrs. Walsh’s class looked at a graph of the speed of sound traveling through different materials. Which statement describes how the speed of sound changes as it travels through different states of matter?

• Sound travels faster through solids than through liquids.

• Sound travels faster through liquids than through solids.

• Sound travels faster through gases than through liquids.

• Sound travels faster through gases than through solids.

Based on the chart, which statement is true?

• Sound travels slower in warmer temperatures.

• Sound travel in air cannot be predicted.

• Sound travels slower in cooler temperatures.

• Sound travels faster in cooler temperatures.