Sound Energy & Electricity

1. Sound is caused by _______________.

• force

• vibrations

• heat

• light

2. Sound does not travel in space because ______________.

• Space is too far away.

• There is little to no matter in space.

• Space has planets.

• There is no liquid in space.

3. What kind of sound is produced based on the soundwave illustrated?

• soft, low-pitched sound

• loud, low-pitched sound

• soft, high-pitched sound

• loud, high-pitched sound

4. When something ________________, it moves back and forth very fast.

• vibrates

• absorbs

• radiates

• transmits

5. _________________ is the highness or lowness of a sound.

• frequency

• pitch

• intensity

• vibration

6. _________________ is the loudness or softness of a sound.

• frequency

• pitch

• intensity

• vibrations

7. The unit of measurement of frequency and pitch is ___________.

• Newton

• Volt

• Hertz

• Decibel

8. What happens as the amplitude of a soundwave become bigger?

• The sound becomes low-pitched.

• The sound becomes high-pitched.

• The sound becomes softer.

• The sound becomes louder.

9. What would happen if you tighten the strings on a guitar?

• It would make a low pitch sound.

• It would make a high pitch sound.

• It wouldn't make a sound.

• Nothing changes in the sound.

10. What type of current has only one loop or path to flow through the circuit?

• series circuit

• parallel circuit

• series and parallel circuit

• none among the choices