Transverse and Longitudinal Waves

1. To produce sound, an object must be _________.

• Moving

• Heated

• In a gas

• Vibrating

1. The speed of sound in wood is ________ the speed of sound in water.

• less than 

• greater than 

• the same at all temperatures as 

• the same at high temperatures as

1. Which medium does sound travel fastest through?

• Air

• Water

• Steel

• Vacuum

Which statement can be made based on these data?

• Sound waves are slowest in liquids and fastest in gases.
• Sound waves are fastest in solids and slowest in gases.
• Speed of a sound wave increases from one medium to another.
• Speed of a sound wave decreases from one medium to another.

Which list shows the correct order of how fast sound travels in different medium?

Rank from slower --> faster.

• solid -> liquid -> gas

• liquid -> solid -> gas

• gas -> liquid -> solid

The term for how loud or soft a sound is:

• pitch
• volume
• sound
• medium

What determines the pitch of a sound?

• Amplitude

• Frequency

• Intensity

• Wavelength

What does the amplitude of a sound wave affect?

• The speed of the sound

• The pitch of the sound

• The loudness of the sound

• The color of the sound

The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-

• absorbed
• stopped
• reflected
• refracted

A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line
• bends when it passes through water
• makes the water in the glass evaporate
• reflects the pencil on the water's surface