A string is attached to two fixed points & is compressed on one end and released. The resulting wave travels back & forth b/w until it comes to a stop.  This is an example of...

• transverse wave
• longitudinal
• superpositional
• refracted

A sound wave can be transmitted through all of the following except...

• a gas
• a liquid
• a solid
• a vacuum

The distance between Earth and the Moon was determined by measuring the time it took for light from Earth to travel to the Moon and back.  Why wasn't sound waves used?

• Sound must move through a medium.
• Sound would change frequency.
• Sound would move too slowly to be accurate.
• Sound moves more slowly in Earth's atmosphere than in space.

What type of wave is illustrated in the spring?

• electromagnetic 
• mechanical

The squished part of this wave is called...

• compression
• rarefraction

The stretched part of this wave is called...

• compression
• rarefraction

What do waves carry?

• particles
• matter
• energy
• objects

Which color of light has more energy?

• orange
• green

Which of these two light waves would appear dimmer?

• orange
• green

Greatest amplitude?

• Black
• Orange
• Green
• Blue