Waves and Light Quiz 2

What type of wave requires a medium to travel through?

• EM wave

• Mechanical wave

• Transverse wave

• Ultrasonic wave

Which wave does not require a medium?

• Mechanical wave

• Longitudinal wave

• EM wave

• Infrasonic wave

Which wave causes particles to move perpendicular to the wave direction?

• Transverse wave

• Longitudinal wave

• Infrasonic wave

• Ultrasonic wave

What kind of wave causes particles to move parallel to the wave direction?

• EM wave

• Transverse wave

• Longitudinal wave

• Diffraction wave

The frequency of a sound wave determines its:

• Loudness

• Pitch

• Echo

• Timbre

What unit is used to measure sound frequency?

• Decibel (dB)

• Hertz (Hz)

• Watt

• Meter

Sound with a frequency below 20 Hz is called:

• Ultrasonic

• Supersonic

• Infrasonic

• Subsonic

Sound with a frequency above 20,000 Hz is:

• Ultrasonic

• Infrasonic

• Transverse

• Loudness

What is the unit for measuring sound intensity?

• Hertz

• Watt

• Decibel (dB)

• Joule

The repeated reflection of sound waves is called:

• Refraction

• Echo

• Diffraction

• Doppler Effect