Sound Waves

A guitar is a musical instrument with strings. Which one of these is needed to make a sound from the guitar?

• The guitar is made from wood.

• The guitar strings vibrate.

• There is air inside the guitar.

• There are metal parts on the guitar.

Zara is playing the guitar by plucking a string. Which statements describes a way that Zara can make the sound LOUDER?

• Pluck the strings with more force.

• Pluck the string with less force.

• Make the string tighter.

• Make the string looser.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-1

Some insects make a buzzing sound. What causes this sound?

• Their vocal chords are vibrating.

• Their wings are moving.

• Their feet are vibrating.

• Their whole body is moving.

Sound travels through air as a sound ________.

• currrent

• wind

• wave

• stream

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sofia is watching television. Which of the following shows how the particles in air vibrate?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Thunder can make objects inside a room vibrate. What causes the objects to vibrate?

• the objects are afraid of thunder

• the magic of thunder

• vibration of air because of the sound of thunder

• the lightning before the thunder

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A fly is walking up a glass window. The fly's feet make vibrations. Explain why people cannot hear the sound of the fly walking.

• Because the fly is not heavy.

• Because ethe fly walks slowly.

• Because the fly doesn't want to get caught.

• Because the vibration from the feet of the fly is very low.

Which of these can sound travel through?

• solid

• liquid

• gas

• vacuum

Tags

NGSS.MS-PS4-2

The moon has no atmosphere. people who went to the moon wore suits that contained air. They did work such as hammering and digging.

The people could NOT hear it happening. Why?

• They are listening to music in the suit.

• They have to work quietly.

• The suit is blocking the sound.

• There is no air on the moon.

Science fiction films are made in studios on Earth. These films often show explosions in space. There is usually a loud bang when the explosion happens. Can you really hear an explosion in space?

• Yes

• No

• Maybe

Tags

NGSS.MS-PS4-1