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Vocabulary
Even More Vocab
Sound Concepts
Elements of Sound
Critical Thinking
100
A quick back and forth motion.
What is a vibration?
100
A wave bouncing off a smooth, hard surface.
What is a reflection?
100
The unit that is used to measure the loudness of common sounds. (scale)
What is a decibel?
100
You are measuring sounds on the Decibel scale. Which sound would measure higher, a classroom or a rock concert?
What is a rock concert?
100
Daily Double *** While riding in a car, you notice that the wheels make sounds against the pavement. The pitch rises as the car speeds up. Why does this happen?
The pitch of the car wheels increases with speed because the vibrations caused by the wheels get faster as the car moves faster.
200
Daily Double *** How high or low a sound is.
What is pitch?
200
When sound is stopped from traveling any further or reflecting.
What is absorption?
200
The kind of sound that is produced by sound waves with peaks that are very close together.
What is high sounds?
200
Using the decibel scale to measure sounds which would rank lower on the scale, a normal conversation or a whisper?
What is a whisper?
200
You want to experiment to test how well various materials muffle sounds. Which variables would you keep the same?
What is the person listening, sound being blocked, room where the test is conducted, etc.?
300
How loud or soft a sound it. You also measure the height of the wave to find this.
What is amplitude?
300
When sound waves continue moving through materials to produce sound.
What is transmission?
300
While hiking, Jen calls her friend's name loudly. What might Jen hear when the sound waves bounce off the smooth surface of the cliff?
What is an echo?
300
Daily Double *** In this part of the ear, vibrations are changed to nerve signals.
What is the cochlea?
300
If you are experimenting to test how well various materials muffle sounds, which variables would you change?
What is materials blocking the sounds?
400
The distance from a point on one wave to the same point on another wave.
What is the wavelength?
400
Daily Double *** Waves that move back and forth along the direction of travel.
What is longitudinal waves?
400
The part of the ear that acts as a funnel for sound waves.
What is the outer ear?
400
Rob's mom is vacuuming. Rob comes into the room and tries to talk to his mom. She does not hear him. Form a hypothesis to explain why she cannot hear Rob.
What is the intensity of the vacuum is greater than Rob's voice, etc.
400
Which instrument plays a higher pitch, a bass or a violin? Why?
What is a violin? It's strings are shorter and produce a higher frequency because it is smaller.
500
The number of waves that pass in a given second.
What is frequency?
500
Daily Double*** Waves that move across the direction of travel.
What is a transverse wave?
500
Sound waves cause this part of the ear to vibrate first.
What is an eardrum?
500
Daily Double *** Josh is putting his ear close to the railroad tracks to try to hear if a train is coming from far away. Even though Josh cannot see a train, do you think he could hear one? Why or why not?
What is yes. The sound from the train will vibrate a great distance down the tracks, making a small sound.
500
Daily Double *** Peyton is standing at her front door. Her friend Omar is five houses down the street. Peyton yells, "Omar" but he doesn't hear her. What could Peyton do differently next time she yells so Omar will hear her?
What is move closer to Omar, cup her hands to make a funnel, yell louder, etc.