Sounds Good To Me
This is the form of energy made up of vibrations of a medium that can be heard.
What is sound?
If a sound has a high pitch it has this kind of frequency.
What is a high frequency?
Sound travels faster in these kind of climates, because there is more energy in the air.
What is hotter?
This person is credited with inventing the telephone.
Who is Alexander Graham Bell
Sound travels to the brain from this section of the ear.
What is the inner ear?
The ability of some animals to use sound waves to locate food is called this.
What is echolocation?
If the amplitude of a sound is high then the volume will be this word.
What is a high volume?
In order to be heard sound must travel through this.
What is a medium?
In order to communicate over long distances, Samuel Morse helped invent this piece of technology.
What is the telegraph?
This is the section of the ear that has the flap and ear canal.
What is outer ear? (will be a diagram on the test)
This is the word to describe the quality of a sound.
What is timbre?
Sound waves from a chirping bird would usually have this kind of frequency.
This is the medium that sound travels the slowest through.
What is air/gas? (this is on the test twice)
Binary code uses this many symbols to represent information.
What is 2?
This is the section of the ear that has the cochlea and auditory nerve.
What is the inner ear? (will be a diagram on the test)
When you sing in an empty gym, your voice sounds louder because the sound waves are this word.
What is reflected?
What is low frequency?
This is the medium in which sound travels the fastest.
What is solid/steel <- The example of the test
Answers will vary. God wanted us to talk to him and know him, God wanted us to talk to and know each other, God uses people's communication to bring him glory etc.
This is the section of the ear with the ear drum and the bones of the ear.
What is the middle ear. (will be a diagram on the test)
Explain how you can tell different instruments apart by their sound.
Answers will vary. But should include there is a difference in timbre, pitch, and volume between instruments, a flute is quiet and high pitch, a drum is loud with deep pitch.
Longitudinal waves have this kind of pattern.
What is back and forth?
Explain why sound travels faster through water than air using the transfer of energy.
The particles of water are closer together in water so the energy can be transferred faster, so the sound travels faster.
Put these steps in order of how a cellphone communicates with another cell phone across the world. Step 1 is done for you.
1. Cellphone
Cellphone
Cellphone Tower
Cellphone Tower
Satellite
Signal Sent
Sound waves of voice changed to code
1. Cellphone 2. Signal sent 3. Sound changed to code 4. Cell Tower 5. Satellite 6. Cell tower 7. Cellphone (of the person receiving the call)
Put the following steps in order in which sound enters the ear and reaches the brain. Step 1 is done for you.
1. Ear Flap
Eardrum
Cochlea
Auditory Nerve
Ear Canal
1. Ear Flap 2. Ear canal 3. Eardrum 4. Cochlea 5. Auditory nerve