SOUND WAVES

In the diagram which letters represent the nodes

• A B C

• A C E

• B D

• B D E

• A C D

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

High frequency waves have _________ wavelength.

• varying
• high
• the same
• low

Based on the picture, choose the best description of how wavelength and frequency are related

• As wavelength increases, frequency increases
• As frequency increases, wavelength remains the same
• As frequency increases, wavelength decreases
• frequency and wavelength mean the same thing

The orange line is measuring the _________________________.

• wavelength
• amplitude
• crest
• trough

____________________  is the number of waves that move past one spot in a second

• energy
• amplitude
• wavelength
• frequency

____________________  is the distance between two crests

• wavelength
• amplitude
• trough
• frequency

The height of a wave crest is called

• wavelenght

• frequency

• amplitude

• energy

For waves moving at a constant speed, if wavelength is doubled, the frequency is

• doubled

• halved

• unchanged

• quadrupled

A large speaker is better than a small speaker for producing sounds with

• low frequency

• high frequency

• low intensity

• high intensity