The students visit the theme park’s sound engineer who is in charge of all the background music for the park.
The engineer shows the students the big speakers located in the middle of the park and explains that the big speakers are used to transmit sound through the air so people can hear the music in all the outdoor areas of the park.
How does the sound travel from the speakers to other areas of the theme park? Check all that apply.
Required
2 points
2
Question 2
2.
The sound engineer explained that she changes the way that the music sounds for different areas of the park so that people outside or in big crowds can still hear, but people inside buildings don’t get blasted by sound energy!
The engineer told them, “I have two controls that I use to change the sound: Loudness and Pitch.”
Which sound wave property does the Loudness control change? Choose one answer below.
Required
2 points
2
Question 3
3.
Which sound wave property does the Pitch control change? Choose one answer below. (Refer to the image of the Sound Control Panel from the previous question.)
Required
2 points
2
Question 4
4.
True or false? When the operator turns the Loudness control to increase the loudness, the sound wave changes. The increase of amplitude in the wave causes the wave to have less energy, making the waves smaller.
Required
2 points
2
Question 5
5.
True or false? When the operator turns the Pitch control to decrease the pitch, the sound wave changes. The sound wave has less energy, so less energy is transferred to people’s ears.
