Waves Unit Test Prep

What is a medium?

• How fast the wave can move.
• The range of electromagnetic waves above red in the visible spectrum.
• A disruption in the connections of matter
• The substance a wave moves through.

What is a wave?

• A repeated disturbance that moves energy.
• A repeated disturbance that moves a substance.
• A repeated back-and-forth or up-and-down motion.
• The way that light and sound transfer through space.

Waves move _____ as they travel.

• objects
• matter
• energy
• medium

If a student is making a wave with a slinky, what is the medium?

• the air around it
• the earth beneath it
• the slinky
• the wave itself

What is a big difference between mechanical and electromagnetic waves?

• Mechanical do not need a medium and electromagnetic do.
• Mechanical waves are faster than electromagnetic.
• All mechanical waves are transverse.
• Electromagnetic do not need a medium and mechanical do.

An area that has no matter in it (like space) is known as a(n) _____.

• transverse
• medium
• vacuum
• em pulse

The highest point of a transverse wave is known as the _____.

• trough
• crest
• rarefaction
• compression

The area where a longitudinal wave is spread out is known as a

• compression
• substitution
• rarefaction
• trough

This is how many waves pass a point in a given time. When this number is higher, this means that the waves carries more energy.

• amplitude
• wavelength
• speed
• frequency

This is the height between the crest and the rest line of a medium. The greater this is the greater the energy carried.

• wavelength
• frequency
• amplitude
• speed