Vocabulary
Dropping In
Good Vibrations
How Sound Travels
Scenarios
100
Quick back and forth movement
What is vibration
100
Causes sound
What is vibration
100
Force applied to an object trying to pull it apart
What is tension
100
An instrument for listening to sounds in the body
What is a stethoscope
100
If object A is vibrating slower than object B. Which object is producing the higher pitch?
What is object B
200
Being able to tell different sounds apart
What is sound discrimination
200
Things that are vibrating and making a sound, like a whistle
What is a sound source
200
How fast or slow a vibration is
What is frequency
200
A funnel shaped device that can amplify sounds at the receiver.
What is a megaphone
200
Juliana had a tuning fork and a ping pong ball on a string. She hit the tuning fork on her shoe. While the fork was vibrating, she placed the tip of the fork onto the ping pong ball. The ping pong ball began to sway back and forth. Explain why this happens.
The tuning fork has created energy from the vibrations, so when the tuning fork touches the ping pong ball the energy is transferred. The energy causes the ping pong ball to move back and forth.
300
The highness or lowness of a sound
What is pitch
300
Anything that detects vibrations, like an ear
What is a sound receiver
300
What happens to the vibrations when the pitch changes? Talk about high and low pitch.
When an instrument makes a high pitch the vibrations are more frequent. However, when the instrument plays a low pitch the vibrations are slower or less frequent.
300
Three things that a sound must have to be heard
What is a sound source, medium, and sound receiver
300
If you are using the FOSS-ulele and you release the tension on the string as you keep plucking it with your finger, what happens to the pitch?
As you release the tension the pitch will keep getting lower.
400
Loudness of a sound
What is volume
400
Which of the following produces the loudest a train or a car horn.
Train
400
What happens to the pitch when the length of the sound source changes? (Explain high and low pitch)
To produce a high pitch the sound source has to have a shorter length. If you want a lower pitch then the sound source must be longer in length.
400
Sounds will be louder and clearer in which medium: water, air, or solid?
What is water
400
Give two examples of how people use sounds to mean different things.
Sirens to signal an emergency Beep to signal a timer
500
Process of increasing the loudness of a sound
What is amplification or amplify
500
What does sound tell us about the items that make those sounds?
Sound can tell us what material the item is made of.
500
What happens to the pitch when you increase the tension on a sound source?
The pitch will increase or become higher
500
Explain how the sound travels using the telephone cups.
One cup is the sound source, which you speak into causing the string to vibrate. The sound travels through the vibrating string to the other cup, which is the sound receiver. The medium is the string.
500
Design a way to allow more than one person to listen to the long gong? Make it possible for people to hear the sound from a long distance.
Use stethoscopes and/or megaphones
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