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24 Cards in this Set

  • Front
  • Back
The loudness of a sound depends on what?
1
When incomming energy from the sun equals energy radiated outwards, Earth is in this.
1
Two white keys on a piano vibrate at 440Hz and 494Hz. At what frequency does the black key between them vibrate?
1
All sound waves are created by this.
1
How are tornadoes and hurricanes different?
1
Air masses with different temperatures meet along this.
1
When a sound wave is absorbed, its sound energy is changed into this.
1
A swirling storm over warm waters with a very low pressure at its center and wind speeds reaching 75 mph is this.
1
Because of this, the Earth's Atmosphere tends to trap heat.
1
This forms when cold air moves in under a warm air mass.
1
How fast sound waves travel depends on this.
1
Describe how the pitch changes as a sound source approaches and passes by.
1
Compared to a looser string, a tighter string will produce what?
1
Sounds travels about 1500 meters per second through water. A sonar signal is timed at 8 seconds from the time it was sent to the the time it returns. How deep is the ocean at this point?
1
Name three parts of the human ear.
stirrup, wrench, hammer, anvil
What things might help to keep temperatures steady and pleasant in a region?
1
A great rise of sea level at a shore due to a hurricane is this.
1
The warm air just ahead of a cold front can form this.
1
Calm weather often occurs when there is this.
1
What kind of materials absorb sound best? What kind of materials reflect sound best?
1
The number of times an object vibrates per secound is called its what?
1
The average weather pattern for a region is called its what?
1
A violent spinning wind that moves in a narrow path is called this.
1
To hear an echo you must have this.
1