Sound and Hearing

What is the typical frequency range of human hearing?

• 20 Hz to 20 kHz

• 10 Hz to 15 kHz

• 5 Hz to 30 kHz

• 50 Hz to 25 kHz

How does frequency relate to the perception of pitch?

• Frequency directly correlates to pitch perception: higher frequency means higher pitch.

• Lower frequency corresponds to higher pitch.

• Pitch is determined solely by volume, not frequency.

• Frequency has no effect on pitch perception.

What unit is used to measure frequency?

• Joules (J)

• Hertz (Hz)

• Watts (W)

• Decibels (dB)

What is the difference between high and low frequency sounds?

• High frequency sounds can only be heard by animals, not humans.

• Low frequency sounds are always produced by musical instruments.

• High frequency sounds are higher in pitch while low frequency sounds are lower in pitch

• High frequency sounds are louder and have longer wavelengths.

How does the human ear detect sound waves?

• The ear uses tiny muscles to create sound waves that the brain interprets.

• The ear amplifies sound waves before sending them to the lungs.

• The human ear detects sound waves by converting vibrations into electrical signals that the brain interprets as sound.

• Sound waves are absorbed by the ear and stored as energy.

What are the properties of sound waves?

• The properties of sound waves include frequency, intensity and the ability to travel through different medium.

• Color and texture

• Magnetic field strength

• Temperature and pressure

How does sound travel through different mediums?

• Sound travels fastest in gases, slower in solids, and slowest in liquids.

• Sound travels at the same speed in all mediums.

• Sound travels fastest in solids, slower in liquids, and slowest in gases.

• Sound travels fastest in liquids, slower in gases, and slowest in solids.

What is the relationship between sound wave frequency and wavelength?

• Frequency and wavelength are unrelated.

• Lower frequency results in shorter wavelength.

• Higher frequency results in longer wavelength.

• Higher frequency results in shorter wavelength.

How do sound waves interact with the environment?

• Sound waves interact with the environment through reflection, refraction, diffraction, and absorption.

• Sound waves can only travel through solids.

• Sound waves can only be produced by musical instruments.

• Sound waves are not affected by temperature changes.

What is the significance of the decibel scale in measuring sound?

• The decibel scale quantifies the color of sound waves.

• The decibel scale is significant for measuring sound intensity,

• The decibel scale measures the frequency of sound waves.

• The decibel scale is used to measure temperature variations.