Reflection: Grappling with Complexity Good, Good, Good Vibrations! - Section 4: Explain

 

The concept in this discussion can be difficult for students to understand.  The thickness of the elastic band and how tight it is will affect the sound that it makes. The pitch of a sound is changed by how quickly the string vibrates.  A tighter string has a higher pitch because it vibrates more quickly, so does a thinner string.  The empty tissue box acts as a sound box, amplifying the sound made by the strings – plucking the string makes it vibrate, which vibrates the air inside the box and makes the sound louder.  You made need to explain this if these ideas don't come up in the conversation.

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  Grappling with Complexity: Discussion
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Good, Good, Good Vibrations!

Unit 4: Sound and Light Waves
Lesson 3 of 20

Objective: SWBAT explain that vibrating material can make sound.

Big Idea: Although the Beach Boys won't be making an appearance, your students will be strumming their guitars as they explore how vibrating bands can make noise.

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Subject(s):
Science, sound waves, Sound, sound effects, Waves, Light, light wave, 1st Grade, vibration, telephone, sound energy, ear, matter
  51 minutes
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