5.5 Sound Unit Test

Sound is a type of mechanical energy that is transmitted in the form of —

• waves

• light

• heat

• electron

Which of these makes a sound with the slowest vibration?

• drum

• flute

• whistle

• harmonica

Blowing through a straw will produce a sound. Which straw will make the highest pitch?

• short

• medium

• large

• extra large

A high soprano singer can break a crystal glass if the glass resonates with her voice. In order to do this, the sound the singer makes has to be —

• speeded up before reaching the glass

• amplified before reaching the glass

• reflected off the glass

• able to vibrate the glass

Which material will sound travel through the fastest?

• water

• air

• steel

• cloth

Sound waves travel best through —

• solids

• gases

• liquids

• vacuums

Which of these transmits sound the fastest?

• water in a pool

• a metal rod

• air in balloon

• empty space

Sound travels fastest through matter that —

• can evaporate easily

• has no definite shape

• has particles that are close together

• has particles that move quickly

During a thunderstorm, you see the lightning before you hear thunder. This is because —

• light has a greater mass than sound

• sound has longer wavelengths than light

• light travels faster than sound

• sound and light travel at the same speed

How is the use of sound waves helpful to this whale?

• It helps the whale locate food

• It makes the water warmer

• It makes it easier to obtain oxygen.

• It signals fish to move out of the whale’s path.