Which wave has the highest frequency?

• 1
• 2
• 3
• 4

Which wave has the shortest wavelength?

• 1
• 2
• 3
• 4

In order for sound to occur, something must:

• spin
• vibrate

Whales, dolphins, and bats use echolocation to locate things, humans use:

• sonar
• spectrometers
• lightning
• telescopes

Which pair is matched incorrectly?

• red - longest wavelength
• red - shortest wavelength
• violet - shortest wavelength

Sound travels slowest through:

• solid
• liquid
• gas

The red and blue particles are the:

• protons & electrons
• protons & neutrons
• electrons & neutrons
• quarks

The picture is an example of:

• absorbtion
• reflection
• refraction
• echo

A wedge-shaped piece of glass that refracts light is called a(n):

• geode
• prism
• odometer
• wedgy

When light and sound waves hit a hard smooth surfaces,  __________ and _________ are created.

• reflections ; echoes
• refractions ; echoes