Pitch and Loudness: Investigating Sound Waves on an Oscilloscope

The video tutorial explores how sound waves are represented on an oscilloscope. It explains the relationship between the amplitude of the oscilloscope trace and the loudness of the sound, as well as the relationship between the frequency of the trace and the pitch of the sound. The tutorial covers the oscilloscope's Y and X axes, detailing how voltage and time are represented. It further discusses how larger amplitudes indicate louder sounds and higher frequencies correspond to higher pitch sounds.

What happens when a sound wave hits the microphone connected to an oscilloscope?

• The microphone stops working.

• The oscilloscope screen changes color.

• The microphone vibrates and creates an alternating voltage.

• The microphone emits light.

What does each square on the Y-axis of an oscilloscope represent?

• A change in amplitude.

• A change in frequency.

• A change in time.

• A change in voltage.

How can the vertical gain on an oscilloscope be adjusted?

• By changing the color of the trace.

• By adjusting the time base.

• By altering the amplitude of the trace.

• By modifying the frequency of the trace.

What does a larger amplitude on an oscilloscope trace indicate about the sound?

• The sound is quieter.

• The sound is louder.

• The sound has a lower pitch.

• The sound has a higher pitch.

What is the relationship between amplitude and energy in sound waves?

• Larger amplitudes carry less energy.

• Larger amplitudes carry more energy.

• Amplitude does not affect energy.

• Amplitude and energy are inversely related.

What does a higher frequency on an oscilloscope trace indicate about the sound?

• The sound has a higher pitch.

• The sound is quieter.

• The sound has a lower pitch.

• The sound is louder.

How is frequency measured in sound waves?

• In Hertz.

• In decibels.

• In volts.

• In seconds.