Sound Test-1

What is the medium through which sound travels the fastest?

• Air
• Water
• Solid
• Vacuum

Which property of a sound wave determines its loudness?

• Frequency
• Amplitude
• Wavelength
• Speed

What is the unit of measurement for frequency?

• Hertz (Hz)
• Decibel (dB)
• Meter (m)
• Second (s)

Which part of the ear amplifies sound vibrations and transmits them to the inner ear?

• Pinna
• Eardrum
• Cochlea
• Hammer, Anvil, Stirrup

When does a sound wave have a higher frequency?

• When it has more energy
• When it has longer wavelength
• When it has more vibrations per second

• When it has lower amplitude

What happens to the pitch of a sound when the frequency of the sound wave increases?

• It becomes higher
• It becomes lower
• It remains the same
• It becomes louder

Which part of the ear converts sound vibrations into electrical signals that the brain can interpret?

• Pinna
• Eardrum
• Cochlea
• Auditory nerve

What is the phenomenon where sound waves bounce off a surface?

• Reflection
• Refraction
• Diffraction
• Absorption

Which musical instrument produces sound through the vibration of strings?

• Flute
• Trumpet
• Violin
• Drum

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

• 343 meters per second
• 1500 meters per second
• 0 meters per second
• 299,792,458 meters per second