Sound

Dan was sitting outside playing his new drum when his dog knocked some sand on it.  Afterwards, each time Dan thumped the drum, he noticed the sand on top of the drum bounced.  Which of the following is the best explanation for why this happened?  

• Sand moves easily on drums.
  
• Dan was thumping the drum too hard.
• Vibrations moved from the drum to the sand.
• Vibrations moved from the sand to the drum.

Tags

NGSS.MS-PS4-2

What is needed for a sound to be made?

• discrimination
• pitch
  
• vibration
• volume
  

Jane and Sophie were playing a game in the pool.  Jane would ask a question andthen both girls would go under the water where Sophie would say the answer.  The girls observed that the sound was different under water.  Why is the sound different?

• Sophie didn’t speak loudly enough.
  
• Sound doesn’t vibrate in the water.
• Ears don’t receive sound under water.
• Sound moves differently through the water than the air.

Tags

NGSS.MS-PS4-2

Which of the following is the best description of pitch?

• how close or far the sound is
• how high or low the sound is
• how long or short the sound is
• how loud or soft the sound is

Which of the following best describes volume?  

• how close or far the sound is
• how high or low the sound is
• how long or short the sound is
• how loud or soft the sound is

Which of the following would have the highest pitch?

• a lion roaring
• a man’s voice
• the rumble of a truck
• a bird chirping

What is the biggest difference between someone yelling and whispering?

• the volume
  
• the pitch

Tags

NGSS.MS-PS4-1

Which would have the loudest volume?  

• a cricket chirping
• a dog barking
  
• rain falling
• thunder nearby

Terrance was practicing on his drums one afternoon when his mom asked him to play them quieter.  What should Terrance do?  

• put a towel over the drums
• tap the drums softer
• tap the drums harder
• tighten the drums

Megan was listening to her favorite song on the radio.  She wanted to hear the song louder but she knew she shouldn’t turn the radio volume up.  What could Megan do to hear the song louder?  

• Close her eyes and focus on the music
• Move the radio closer to her
• Move the radio farther from her
• Tap on  the radio