Sound Energy Review

Josie stretches string tight between her fingers. When she plucks the string, it makes a sound. Which of the following explains why the string makes a sound when Josie plucks it?

• It heats the air.

• It vibrates the air.

• It absorbs energy from the air.

• It releases molecules into the air.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-1

Billy and Bonnie each have tuning forks that are different lengths. Billy has a 14 cm fork that has a fast vibration. Bonnie has a 20 cm fork that has a slow vibration.

Which tuning fork would produce the higher pitch

• Billy's because it vibrates fast.

• Bonnies because it vibrates slow.

Tags

NGSS.MS-PS4-1

Which of these pictures shows an object that produces energy by vibration?

• 
• 
• 
• 

A music teacher is showing her class how sound works. Which of the activities below would students be able to best see the vibrations caused by sound energy?

• Playing the flute

• Blowing a whistle

• Listening to loud music

• Holding a tuning fork over water.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Ms. Capet's class is doing an investigation about pitch using guitar strings. They observed that guitar string 1 and 3 had medium vibrations. Guitar string 2 had slow vibrations. Guitar string 4 had fast vibrations.

Which guitar string created the lowest pitch?

• Guitar strings 1 & 3

• Guitar string 2

• Guitar string 4

Tags

NGSS.MS-PS4-1

Ms. Velasquez hears the bell ring for the start of the school day. Which explanation best explains why she can hear the bell ring?

• Striking the bell causes the air around it to vibrate and sound to travel.

• The sound reflected against the walls, so she could hear it.

• The wind blows the sound into her ears.

• The bell was turned down to a low volume.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which explanation below best describes what causes sound and pitch?

• Sound is produced only by vibrating air, and pitch is how fast or slow an object vibrates.

• Sound is produced by vibrating objects, and pitch is how loud or soft a sound is.

• Sound is produced by vibrating objects, and pitch is how fast or slow an object vibrates.

• Sound is produced only by vibrating air, and pitch is how loud or soft a sound is.

Mrs. Ramirez plays a video during science class. Below are the steps for how sound reaches our ears.

1. The vibrations travel through the air.

2. The speakers vibrate the air around it.

3. The vibrating air reaches our ears.

Which is the correct order of how sound reaches our ear?

• 1, 2, 3

• 3, 2, 1

• 2, 1, 3

• 2, 3, 1

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the answer choices would produce the highest pitch sound?

• breaking a rubber band

• shooting the rubber band across the room

• pulling the rubber band tightly and plucking

• pulling the rubber band loosely and plucking

Tags

NGSS.MS-PS4-1