When sound waves bounce off a surface and create an echo, the waves are being ____________.

What type of waves DO NOT require a medium to carry energy and can travel through space?

What type of wave vibrates perpendicular to the motion of the wave so it moves up and down or side to side?

The substance a wave travels through is called the _________.

As the wavelength gets longer, the energy of the wave _______.

As the wavelength of a wave gets longer, the frequency gets ____________.

What part of the electromagnetic spectrum can be seen by the human eye?

Sound waves are ___________.

Which part of the wave is pointing to the crest?

Which wave has the longest wavelength?

Which wave has the highest amplitude?

Which wave would represent the most quiet sound?

Compared to Wave A, which wave has a shorter wavelength but the same amplitude?

Look at the waves to the left. Which wave carries more energy, and why?

Which points are wave troughs?

Which of these has the highest frequency?

Which of these has the longest wavelength?

In the wave to the left, A is pointing to the ______.

Water and seismic waves are examples of __________ waves.