Oscilloscope,Loudness,pitch

Multiple Select

Which statement is true of sound waves. Select 2 answers.

• They are made by objects vibrating

• They are detected because they make our ear drum vibrate

• They are transverse waves

• They travel faster in air than in water.

Multiple Choice

Which wave will have a louder sound?

• Top wave

• Bottom wave

Multiple Choice

What is the Oscilloscope used for

• To display Heart signals

• To display Electric waves

• To display Vibration

• All of the above

Multiple Choice

Diagram below shows an audio signal generator connected to an oscilloscope.

Which signal shows the loudest and the highest pitched audio signal?

Multiple Choice

Diagram shows the trace displayed on the screen of an oscilloscope. with the time-base set to 10 ms/div. What is the frequency, f of the wave

• 5 Hz

• 25 Hz

• 40 Hz

• 50 Hz

Multiple Choice

Figure shows a wave form obtained from a signal generator connected to the Y-input of a CRO.

Below are the settings on the oscilloscope

Y-gain setting = 3 V cm^-1

Timebase setting = 5 ms cm ^-1

Determine the period of the signal

• 0.002 s

• 0.01 s

• 0.02 s

• 0.03 s

Multiple Choice

The picture shows 4 sound waves on an oscilloscope. What can you say about A?

• It is a very low pitched sound

• It is a very high pitched sound

• It is a very quiet sound

• It is a very loud sound

Multiple Select

The picture shows 4 sound waves on an oscilloscope. Which 2 have the smallest amplitude?

• A

• B

• C

• D

Multiple Choice

Diagram shows the trace on an Oscilloscope screen. The time-base is set at 5mS (0.005 S) per division. What is the frequency of the wave form on the Oscilloscope?

• 0.2 Hz

• 0.04 Hz

• 40 Hz

• 200 Hz