Seeing Sound

Madison hits a drum with a drumstick and makes it vibrate. Then she rests her hand on the drum and stops the vibration. What happens to the sound of the drum?

• The sound stops because the vibrations have stopped.

• The sound stops because it cannot pass through her hand

• The sound becomes clearer because the vibrations have stopped.

• The sound decreases in pitch because the vibrations have stopped.

Tags

NGSS.MS-PS4-2

Dikembe learns in science class that when an object vibrates, it moves back and forth. Which of the following forms of energy can Dikembe say results from the vibrations that travel through the air?

• electrical energy

• energy of motion

• sound energy

• thermal energy

Tags

NGSS.MS-PS4-1

How could you increase the pitch of a sound produced by an object?

• Make the object vibrate faster.

• Make the object vibrate slower.

• Make the object vibrate louder.

• Make the object vibrate quiter.

Tags

NGSS.MS-PS4-1

Luis is playing his favorite song on the guitar. How will the sound change if he plucks the string with more force?

• The pitch will get higher.

• The pitch will get lower.

• The volume will get louder.

• The volume will get softer.

The picture shows a rubber band stretched to two different lengths. The rubber band can be pulled to the side and let go to make a sound. What would you predict about the pitch of the sound of rubber band B compared to rubber band A?

• The pitch of B is higher than the pitch of A.

• The pitch of B is louder than the pitch of A.

• The pitch of B is lower than the pitch of A.

• The pitch of B is softer than the pitch of A

Tags

NGSS.MS-PS4-1

A scientist is using the scientific method. She studies a table of data she has collected and recorded. She decides what the results mean. What does the scientist do next?

• She draws conclusions.

• She makes a prediction.

• She conducts an experiment.

• She studies the results one more time.

Tags

NGSS.MS-LS1-5