Unit 15 Quiz

What are sound waves?

• units to measure loudness/volume
• the loudness of sound
• an element of sound determined by the speed in which sound waves move
• energy from a vibration that travels in a series of compressions

What is the difference between volume and pitch?

• volume is the loudness of sound & pitch is the compression vibrations
• volume is the loudness of sound & pitch is determined by the speed of the sound waves
• volume is determined by the speed of the sound waves & pitch is the loudness of sound
• volume is the compression vibrations & pitch is determined by the speed of the sound waves

What are vibrations?

• units to measure loudness/volume
• speed of the sound waves
• to move quickly back and forth
• loudness of sound

Decibels are 

• units to measure loudness/volume
• speed of the sound waves
• to move quickly back and forth
• loudness of sound

The Greek & Latin Root  EXTR- means

• old/ancient
• outer
• electric

The Greek & Latin Root  PALEO- means

• old/ancient
• outer
• electric

The Greek & Latin Root  ELECTRO- means

• old/ancient
• outer
• electric

The mold scraper in the City of Ember has to take or scrape the mold off of the building's exterior. They do not clean the inside of the buildings.                    
Use the information in the sentence above to determine the meaning of the word  "exterior".

• outside of an area
• unusual part
• form of energy
• studying fossils on the building

The students took apart the electronic pencil sharpener. When they took off the outer cover they found a small motor, gears and blades.                                            
Use the information in the sentence above to determine the meaning of the word  "electronic".

• having or operating with the aid of many small components
• forming on the outside of something
• very unusual pieces
• scientist studying electricity

Paleontologists used to believe that dinosaurs lived only in the warmest parts of the world. Later, these dinosaur scientists began finding bones in surprising places.                                 Use the information in the sentence above to determine the meaning of the word  "paleontologist".

• a scientist who studies artifacts
• a scientist who studies fossils
• a scientist who studies math
• a scientist who studies science