Sound Waves Quiz

Which of the following is a property of sound waves?

• They can travel through a vacuum.

• They require a medium to travel.

• They are transverse waves.

• They do not carry energy.

What is the unit of frequency for sound waves?

• Metre

• Hertz

• Decibel

• Newton

If the frequency of a sound wave increases, what happens to its wavelength?

• It increases.

• It decreases.

• It remains the same.

• It doubles.

What is the speed of sound in air at room temperature (20°C)?

• 1500 metres per second

• 343 metres per second

• 299,792 kilometres per second

• 1000 metres per second

Which of the following best describes the reflection of sound waves?

• Sound waves bending around obstacles.

• Sound waves bouncing off surfaces.

• Sound waves changing speed in different media.

• Sound waves being absorbed by materials.

What is the term for the bending of sound waves as they pass from one medium to another?

• Reflection

• Refraction

• Diffraction

• Absorption

Which of the following materials would sound travel fastest through?

• Air

• Water

• Steel

• Wood

What happens to the speed of sound when it travels from air into water?

• It decreases.

• It increases.

• It remains the same.

• It stops.

Which of the following is NOT a property of sound waves?

• Frequency

• Wavelength

• Amplitude

• Colour

What is the term for the highest point of a sound wave?

• Trough

• Crest

• Node

• Antinode