Sound Characteristics Quiz

Which of the following characteristics of sound is related to its loudness?

• Frequency

• Amplitude

• Wavelength

• Speed

What is resonance?

• Reflection of sound

• Increase in amplitude when the frequency matches natural frequency

• Doppler effect

• Speed increase in a denser medium

Sound cannot travel through:

• Water

• Steel

• Air

• Vacuum

The Doppler Effect is observed when:

• Sound is absorbed

• Sound is reflected

• The source or observer is moving

• The sound is at resonance

Which of the following is not a factor affecting the speed of sound in a medium?

• Temperature

• Density

• Elasticity

• Color

Which component of a wave determines its energy?

• Amplitude

• Frequency

• Wavelength

• Period

Which property of a sound wave changes when it enters a new medium?

• Frequency

• Amplitude

• Speed

• Phase

Echoes are due to:

• Refraction

• Diffraction

• Reflection

• Absorption

Ultrasonic waves have frequencies:

• Below 20 Hz

• Between 20 Hz and 20,000 Hz

• Above 20,000 Hz

• In the visible spectrum