Sound Waves Properties Activity

What is the nature of a sound wave?

• Transverse wave

• Mechanical wave

• Electromagnetic wave

• Longitudinal wave

What is the unit of frequency for sound waves?

• Decibels

• Watts

• Hertz

• Meters per second

What property of a sound wave is perceived as its pitch?

• Amplitude

• Wavelength

• Speed

• Frequency

In which type of wave do particles of the medium vibrate back and forth in a direction parallel to the wave's direction of travel?

• Transverse wave

• Longitudinal wave

• Electromagnetic wave

• Mechanical wave

What does the amplitude of a sound wave refer to?

• The maximum displacement of a particle from its rest position

• The length of the wave

• The number of vibrations per second

• The speed of the wave

What is the range of frequencies that humans can typically hear?

• 20,000-100,000 Hz

• 20-20,000 Hz

• 100-1000 Hz

• 10-100 Hz

What is the speed of sound in air at 20°C?

• 5100 m/s

• 343.50 m/s

• 1400 m/s

• 331.65 m/s

What property affects the speed of sound in air?

• Amplitude

• Wavelength

• Temperature

• Frequency

What is the mathematical relationship between wave speed, frequency, and wavelength?

• V = f * Lambda

• V = f + Lambda

• V = f / Lambda

• V = f - Lambda

What is the audible range of human hearing in terms of frequency?

• 20,000-100,000 Hz

• 20-20,000 Hz

• 100-1000 Hz

• 10-100 Hz