Quiz 01

What creates sound waves?

• Electrical currents

• Vibrating objects

• Light waves

• Magnetic fields

How do sound waves travel?

• Through solids only

• Only in air

• Only in water

• Through solids, liquids, and gases

Which of the following is true about sound waves?

• They can travel in a vacuum

• They are longitudinal waves

• They move faster in air than in solids

• They are transverse waves

What happens in a compression of a sound wave?

• Molecules are farther apart

• Molecules are closer together

• Molecules stop moving

• The wave reverses direction

What is the frequency of a sound wave?

• The distance between two compressions

• The number of wavelengths that pass a point per second

• The speed of the wave

• The amplitude of the wave

What is a rarefaction in a sound wave?

• The region where molecules are closer together

• The region where molecules are farther apart

• The peak of the wave

• The distance between waves

Which of the following is measured in Hertz (Hz)?

• Sound wave amplitude

• Sound wave speed

• Sound wave frequency

• Sound wave intensity

What happens when you hit a drum?

• The drumhead vibrates, creating sound waves

• The drumhead releases air pressure

• The drum stops vibrations

• Nothing happens

What causes sound to travel faster?

• Traveling through air

• Traveling through a vacuum

• Traveling through solids

• Traveling through water

Which of the following best describes the wavelength of a sound wave?

• The time it takes for one complete wave to pass a point

• The distance between a compression and a rarefaction

• The distance between one compression and the next

• The frequency of the sound wave