Sound

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Sound Light

• By Miss Lawson
• 11-21-2003

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Sound Vocabulary

• Vibration-moving back and forth quickly and
  rhythmically
• Sound-vibrations that you hear
• Pitch- making sounds higher and lower

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More Sound Vocabulary

• Sound waves-moving areas of high and low pressure
  that carry sound.
• Loudness-the amount of sound energy reaching your
  ears

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Still More Sound Vocabulary

• Echo-a reflection of a sound
• The speed of sound- how fast a sound moves

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What are 4 ways to make objects vibrate?

• Plucking
• Striking
• Blowing
• Pressing a Key (Makes the strings of a piano
  vibrate)

Sound Information
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What are 3 ways to make a higher pitch?

• Make the strings shorter or longer
• Pulling the strings tighter
• Adding a mute

Sound Information
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Sound Open Response Questions!!!

• In science class we have been learning about how
  sounds are produced. Look at the 2 instruments
  below A. Compare the pitch that the 2
  instruments would make. B. Give at least 3
  reasons why the pitch of the 2 instruments would
  be different.

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Sound Open Response Question 2

• Sound is a vibration you can hear. An object
  vibrates to make sound. A. List 3 examples of
  objects that can vibrate and produce sound. B.
  Explain how your ear is able to hear sound.

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Light Vocabulary

• Refraction-the bending of light
• Reflection-the bouncing of light off objects
• Absorption-stopping light and holding it in

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Light Vocabulary

• Prism-an instrument that breaks white light into
  colors, like a rainbow.

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Light Vocabulary

• Opaque-an object that you cannot see through
• Transparent-an object you can see through, like a
  window.
• Translucent-an object you can see through but is
  blurry, like a foggy mirror.

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Light Sources

• The Sun
• The stars
• A flashlight
• A fireflys abdomen (also known as a lightning
  bug)

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Light Waves

• Light comes in waves, just like sound. However,
  sound waves travel out like a ripple in all
  directions. Light waves travel in straight lines.

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Light Open Response

• Light has many characteristics.
• A. Identify 2 characteristics of light.
• B. Explain an example of each characteristic.

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Open Response

• White light is made up of many colors.
• A. Describe what happens when white light is
  refracted by a prism.
• B. Demonstrate using a diagram,
  how light is reflected.