Sound waves vocabulary

True or false: The two sound wave diagrams are of two waves with the same volume

• True
• False

If you want to change the pitch of a sound, you have to change the ___

• frequency
• amplitude
• speed
• volume

What happens when you increase the amplitude of a sound?

• it makes the sound louder
• it makes the sound travel faster
• it increases the wavelength of the sound
• it increases the frequency of the sound

What is a pitch?

• highness or lowness of a sound
• the intensity of a vibration
• the amplitude of the sound wave
• volume of sound

Which sound is louder, the one on the left or the one on the right?

• left
• right
• they are both the same volume

True or false: The denser the material, the faster sound can travel through it

• True
• False

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.

Sound waves move more quickly through _________________ matter

• dense
• light

True and False: Pitch and volume are the same thing

• True
• False

A person produces two sound waves with a flute. The second wave is louder because of ...

• Amplitude
• Frequency