Waves

Which type of wave can travel in a vacuum?

• Long

• Electromagnetic

• Transverse

• Longitudinal

The parts on a longitudinal wave that are spread apart are called

• Crest

• Trough

• Compression

• Rarefaction

What can change the speed of an electromagnetic wave?

• Frequency

• Type of medium

• Amplitude

• Wavelength

Longitudinal waves where the wave is closer together is a

• rarefaction

• compression

• trough

• crest

A pool noodle appears to bend in the water because_______.

• waves compress in dense materials

• electromagnetic waves cannot travel through solids

• electromagnetic waves travel at different speeds through different mediums

• None of these

Change in direction of a light wave is an example of _____.

• absorption

• reflection

• diffraction

• refraction

Sound energy depends on ________ of a medium.

• density

• temperature

• pressure

• volume

If all colors are absorbed we see ________.

• Black

• Brown

• Green

• White

If all colors are reflected we see ________.

• Black

• Brown

• Green

• White

Closer wavelengths means higher pitch and frequency.

• True

• False