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Fourth Grade (Grade 4) Waves and Sound Questions

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Grade 4 Waves and Sound
Which pipe organ makes the lowest-pitched sound?
  1. the oldest pip
  2. the heaviest pipe
  3. the shortest and thinnest pipe
  4. the longest and thickest pipe
Grade 4 Waves and Sound
You can see clearly through materials that are transparent.
  1. True
  2. False
Grade 4 Waves and Sound
A guitar has two strings of equal length. They are made of the same material. One is thinner than the other. How will the sounds they make compare?
  1. They will have the same pitch because they are made of the same length.
  2. They will have the same pitch because they are made of the same material.
  3. The thin one will make a higher-pitched sound than the thick one.
  4. The thick one will make a higher pitched sound than the thin one.
Grade 4 Waves and Sound
The unit most commonly used to measure sound is the                .
  1. centimeter
  2. decibel
  3. meter
Grade 4 Waves and Sound
What happens to the sound an object makes when its rate of vibration decreases?
  1. Its pitch rises.
  2. Its volume increases.
  3. Its volume decreases.
  4. Its pitch becomes lower.
Grade 4 Waves and Sound
During                , a light ray changes direction as it passes from one material to another.
  1. refraction
  2. reflection
Grade 4 Waves and Sound
The process of taking in and stopping a sound is called                .
  1. pitch
  2. vibration
  3. amplitude
  4. absorption
Grade 4 Waves and Sound
In which material would sound waves probably travel the fastest?
  1. cotton
  2. milk
  3. iron
  4. oxygen
Grade 4 Waves and Sound
Which of the following is transparent?
  1. eye glasses
  2. stained glass
  3. tin foil
Grade 4 Waves and Sound
                is the number of waves that move past a point in a certain amount of time.
  1. Trough
  2. Crest
  3. Wavelength
  4. Frequency
Grade 4 Waves and Sound
Sound waves travel at 731 million miles per hour.
  1. True
  2. False
Grade 4 Waves and Sound
Sound is produced by the                of moving particles.
  1. vibration
  2. frequency
  3. pitch
  4. amplitude
Grade 4 Waves and Sound
The                  away an object is from the light source, the                  the shadow.
  1. closer, bigger
  2. farther, smaller
  3. closer, smaller
  4. farther, bigger
Grade 4 Waves and Sound
Your outer ear
  1. passes vibrations to middle ear.
  2. sends signals to the brain.
  3. gathers sound waves.
  4. passes vibrations to the middle ear.
Grade 4 Waves and Sound
The device used to measure sound waves is called a/an                
  1. stethoscope
  2. oscilloscope
  3. breathoscope
  4. newscope
Grade 4 Waves and Sound
If you put your finger down on a guitar string to make the string shorter, the sound the string makes will get                .
  1. lower
  2. higher
  3. louder
  4. softer
Grade 4 Waves and Sound
A material that allows a little light to pass through it is                .
  1. transparent
  2. translucent
  3. opaque
Grade 4 Waves and Sound
If a sound's pitch is high, its source is
  1. an echo.
  2. vibrating quickly.
  3. nearby.
  4. a sonic boom.
Grade 4 Waves and Sound
The harder you strike a drum, the greater the sound's                .
  1. pitch
  2. medium
  3. volume
  4. frequency
Grade 4 Waves and Sound
The pitch of a stringed instrument can be affected by
  1. an object called a hammer.
  2. the size of a player's fingers.
  3. the length of its strings.
  4. how hard it is struck or plucked.
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