WAVES AND SOUND PART 2

Two sounds can be differentiated by the difference in

• Frequency only

• Loudness only

• Both

The number of vibrations per second is called

• Amplitude

• Frequency

• Oscillation

The unit of frequency is

• Decibles

• Hertz

• Meters

Loudness of the sound is determined by its

• Amplitude

• Frequency

• none of the above

travels through solids fastest because the molecules are closer together

• Sound

• Light

• Waves

• Energy

The number of wavelengths that pass a point each second

• frequency

• wavelength

• pitch

• amplitude

A part in a longitudinal wave where the particles are spread apart

• compression
• rarefaction
• crest
• trough

A reflected sound wave

• frequency

• pitch

• echo

• rarefaction

Find the period of the wave

• 1 s

• 2 s

• 3 s

• 4 s

What is the frequency of the wave?

• 2 Hz

• 4 Hz

• 1 Hz

• .5 Hz