Chapter 20: Waves

What is it called when a longitudinal wave and a transverse wave combine?

• combined wave
• bilateral wave
• electromagnetic wave
• surface wave

A  ______ is a substance through which a wave can travel

• frequency
• mechanical wave
• medium
• vibration

Waves transfer _____through_____.

• Mass, particles
• Energy, particles
• Vibrations, energy 
• Mass, energy

The amount of diffraction that occurs to a wave depends on its __________.

• a. amplitude
• b. wavelength
• c. the size of the barrier or opening the wave encounters
• d. both b and c

What causes certain parts of standing waves to always stay at rest position?

• a. a barrier
• b. lack of energy
• c. total constructive interference between all of the waves
• d. total destructive interference between all of the waves

What are mechanical waves?

• Waves made by machines
• Waves that need a  medium
• Earthquakes
• Waves that go through solids

If two crests of equal amplitude on a rope come in contact, what will happen at that brief moment?

• Nothing will change.
• They will turn into troughs of equal size.
• They will remain as crests and double their size.
• They will cancel out.

Electromagnetic waves....

• Travel through a medium
• Do not travel through a medium
• Are also light waves
• Both B and C

Which transverse wave described below would have a higher frequency?

• A wave with longer wavelengths
• A wave with smaller wavelengths
• Wavelength doesn`t affect frequency
• None of the above

In which directions do sound waves move?

• Up and left
• Down and right
• left and right
• Down and left