DOUBLE JEOPARDY!! What happens to a sound as the vibrations of an object increase in amplitude?
The volume gets louder.
100
What is pitch?
The high or low of a sound
100
What is volume?
Volume is the loud or soft.
100
Sound cannot travel in _________.
a Vacuum or space.
100
Sound travels in ______________ from its source.
All directions.
200
What is the definition of sound?
Sound is a form of energy caused by vibrations.
200
Explain why a drum set has different pitches.
The size of the drums are different.
200
TRIPLE JEOPARDY! To play a drum louder, what would you need to do? Does this take more or less energy?
Hit the drum harder. More energy.
200
Who is your favorite teacher?
Miss Toone. Not Mrs. Watkins. Miss Toone is cooler. Way cooler. Sorry Mrs. Watkins.
200
The number of times an object vibrates in a given amount of time is called what?
Frequency
300
All sound waves are created by what?
Vibrations.
300
What would you do to lower the pitch of a string on a violin?
You would loosen the string.
300
What causes an echo?
When sound reflects or bounces off a surface and returns back to you.
300
How fast sound waves travel depends on what?
Frequency.
300
DOUBLE JEOPARDY!!! Explain how our vocal cords work.
Air passes through two flaps of tissue that vibrate together to produce sound.
400
A trumpet does not have strings. How does it make a sound?
Air is blown into the trumpet and the sound waves vibrate through the tube.
400
What happens if you increase the frequency of a sound?
It creates a higher pitch.
400
Name two types of materials that absorb sound.
Carpet, fabric, rubber, wood, or cushions.
400
Name a loud noise that could damage your hearing.
Jet plane, loud concert, screaming, etc.
400
The unit for measuring frequency is called what?
Hertz
500
List the steps of how sounds is heard.
1. Something vibrates
2. Air molecules around it vibrate
3. Vibrating air molecules or sound waves travel through the air
4. Sound waves enter your ear and vibrate the ear drum
5. Tells your brain "Hey! You heard a sound!"
500
Less sound waves create a _________ pitch and a ________ frequency.
Lower and lower/smaller.
500
What is it called when sound waves are reflected off hard surfaces?
An echo.
500
If a tree falls in a forest and no one is there, does it make a sound? Why or why not?
Teacher will judge whether your answer and explanation is valid.
500
Name the three characteristics that would produce a higher pitch.