What is a Vibration?

• A swinging motion
• A special metal
• A back and forth motion
• A exciting song

A wave that transfers energy through a material and spreads outwards in all directions from a vibration is a...

• Light Wave
• Tidal Wave
• Green Wave
• Sound Wave

Regions of air that have many particles are called...

• Rarefaction
• Spiral
• Accordion
• Compression

Regions of air that have few particles are called...

• Rarefaction
• Spiral
• Accordion
• Compression

Air is an example of a medium.

• True
• False

Sound moves in _______________ waves.

• Latitudinal
• Altitudinal
• Horizonal
• Longitudinal

In space, two meteors crash into each other. Do they make a sound?

• Yes and it is loud
• No because sound only happens on earth
• Yes, because nothing can stop sound
• No, because there is no medium

What happens to the energy that light carries as you move from radio waves to gamma rays?

• Energy decreases
• Energy increases
• Energy disappears
• Helps you become the Hulk

How does sound travel?

• In straight lines only
• As vibrations through air
• As light waves
• Through empty space

Why do we see lightning before we hear thunder?

• Light is faster than sound
• Sound is faster than light
• They both travel at the same speed
• Lightning and thunder are not related