Waves

What is the frequency of a wave?

• The distance between two consecutive crests or troughs

• The speed of the wave

• The number of wave cycles that pass a given point per unit of time

• The maximum displacement of the wave from its rest position

What is the amplitude of a wave?

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• The distance between two consecutive crests or troughs

• The maximum displacement of the wave from its rest position

• The speed of the wave

• The number of wave cycles that pass a given point per unit of time

What is the wavelength of a 6 Hz wave traveling at 12 m/s?

• 72 m

• 2 m

• 0.5 m

• 1/6 m

What is a longitudinal wave?

• A wave in which the particles of the medium move perpendicular to the direction of the wave

• A wave in which the particles of the medium move parallel to the direction of the wave

• A wave that can travel through a vacuum

• A wave that is stationary

What is a transverse wave?

• A wave in which the particles of the medium move perpendicular to the direction of the wave

• A wave in which the particles of the medium move parallel to the direction of the wave

• A wave that can travel through a vacuum

• A wave that is stationary

What is the speed of sound in air at room temperature?

• Approximately 343 m/s

• Approximately 300,000,000 m/s

• Approximately 9.8 m/s

• Approximately 1,500 m/s

What factors affect the speed of sound?

• Temperature

• Humidity

• Pressure (Elevation)

• Pitch of the sound

What is the Doppler effect?

• The change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source

• The reflection of sound waves off a surface

• The bending of sound waves around obstacles

• The spreading out of sound waves in all directions

What is resonance?

• The reflection of sound waves off a surface

• The phenomenon in which an external force drives a system to oscillate at a specific frequency that matches the natural frequency of the system

• The spreading out of sound waves in all directions

• The bending of sound waves around obstacles

Sound waves are always _________________.

• longitudinal waves

• transverse waves

• standing waves

• beats