Sound Unit Review

1. Four kids are listening to a tv show. Ann is next to the tv, Bob is 4 feet away, Carl is 8 feet away, and Darla is in the kitchen. Which kid hears the tv the best and which kid is struggling to hear?

• Carl and Darla

• Ann and Darla

• Bob and Carl

• Ann and Bob

2. What causes sound to come from stringed instruments like violins, cellos, banjos and guitars?

• the texture of the strings

• the length of the strings

• the vibrations of the strings

• the thickness of the strings

Tags

NGSS.MS-PS4-1

3. Asher is making a box guitar using rubber bands as strings. How can he change the pitches of the sounds the rubber bands will make when plucked if they are all the same size?

• Space them further apart.

• Pull them to different tensions.

Tags

NGSS.MS-PS4-1

4. Asher is making a box guitar using rubber bands as strings. What will happen if he uses different sized rubber bands?

• The thicker and longer rubber bands will make lower pitches.

• The thinner shorter rubber bands will make higher pitches.

• The tighter the bands are, the higher the pitch will be.

• All of the above.

Tags

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5. Sound travels in _____________________.

• instruments only

• Waves

• Tubes

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

6. This form of energy is described by pitch and volume and comes from vibrating objects.

• Heat

• Sound

• Light

Tags

NGSS.MS-PS4-1

7. True or False: You cannot change the volume of a sound without changing the pitch.

(Think of radio and TV recordings)

• True

• False

Tags

NGSS.MS-PS4-1

True or False: The 3 properties that affect pitch are tension, thickness, and length.

• True

• False

9. True or False: The two properties that affect volume are tension and force.

• True

• False, force and distance

Veronica wanted to change the pitch of a string on her violin and make it higher. What should she do?

• Loosen the string

• Tighten the string

• Get a thicker sting

• Get a longer string