Oscilloscope,Loudness,pitch

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 a cathode ray oscilloscope, CRO.

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

Multiple Choice

Diagram shows the trace displayed on the screen of a C.R.O. 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 CRO

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 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

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