Mechanical Waves

Which type of wave travels perpendicular to the disturbance?

• Sound

• Electromagnetic

• Transverse

• Longitudinal

What happens when a mechanical wave travels through a medium?

• Waves are transferred
• Energy is transferred
• Mass is transferred
• Particles are transferred

Which is true of a mechanical wave?

• It must have a medium
• It must travel in empty space.
• It can travel in a vacuum.
• Both sound and light are examples.

What is the wavelength of a wave?

• the size of the disturbance
• the amount of time that occurs in one full cycle
• the distance between two crests/troughs of a wave

• the amount of cycles that occur in a given time

Unlike a transverse wave, the disturbance in a longitudinal wave is

• in a circular motion.
• parallel to the wave motion.
• perpendicular to the wave motion.
• in the opposite direction of the wave motion

What is the lowest point of a wave?

• trough

• crescent

• medium

What unit is used to measure frequency?

• centimeters (cm)

• meters (m)

• hertz (Hz)

• miles per hour

What is a rarefaction in a longitudinal wave?

• The region in a longitudinal wave where the particles are closest together.

• The entire wave.

• The region in a longitudinal wave where the particles are furthest apart.

What kind of wave is pictured here?

• compressional wave
• transverse wave
• sound wave
• electromagnetic wave

Mechanical waves can travel through empty space.

• True

• False

• Only sound waves can travel through empty space.