Sound Review

Which would affect pitch?

• changing the time of a vibrating string

• changing the temperature of a vibrating string

• changing the length of a vibrating string

• changing the volume of a vibrating string

Which pair of terms best describes volume of sound?

• high and low

• loud and high

• soft and low

• loud and soft

Audrey said the opera singer was singing very loudly. What part of sound best fits what Audrey was describing?

• volume

• force

• vibration

• pitch

Why might the bottom string on a guitar have a higher pitch than the top string?

• The strings have the same thickness.

• The bottom string does not vibrate.

• The bottom string is thinner.

• The bottom string is thicker.

Which would have the highest pitch?

• cold string

• loose string

• thick string

• short string

How does tightening the wires of a guitar to tune the instrument change its vibration and pitch?

• Tighter wires vibrate faster, making the pitch lower.

• Tighter wires vibrate faster, making the pitch higher.

• Tighter wires vibrate slower, making the pitch higher.

• Tighter wires vibrate slower, making the pitch lower.

Jace shortens one of the strings on his violin. How will this affect the sound of that string?

• The volume will be louder.

• The pitch will be higher.

• The volume will be softer.

• The pitch will be lower.

Two students make a device to talk from one end of a hallway to the other. When one student speaks into one can, the other student listens by keeping the other can on an ear. What design modification would help the students transfer louder, clearer sounds?

• Swing the string while talking.

• Keep the string tight.

• Loosen the string.

• Twist the string.

Our of the following forms of transportation, which form will produce a soft sound and why?

• The motorcycle because it is small.

• The jet because it flies high in the sky.

• The bicycle because it does not have an engine.

• The car because people ride inside of it.

The diagram shows four different elastic bands stretched over a hollow block. Which band will produce the lowest pitched sound upon vibration?

• band 1

• band 2

• band 3

• band 4