Oscilloscope and Sonar Signal Quiz

What happens to the number of divisions required for one complete oscillation when the time base is changed from 40 ms/div to 20 ms/div?

• It doubles

• It halves

• It becomes zero

• It remains the same

If the period of a waveform is 160 milliseconds, how many divisions are needed at a time base of 20 ms/div?

• 4 divisions

• 2 divisions

• 8 divisions

• 16 divisions

Which waveform pattern is correct when the time base is set to 20 ms/div for a period of 160 ms?

• Pattern with 10 divisions

• Pattern with 2 divisions

• Pattern with 5 divisions

• Pattern with 8 divisions

What does a higher potential at x1 compared to x2 indicate on an oscilloscope?

• x1 is positive

• x2 is positive

• x1 and x2 are equal

• x1 is negative

How does an electron move in relation to positive and negative potentials?

• It does not move

• Towards negative, away from positive

• Towards positive, away from negative

• Randomly

What is the time base setting used to record a sonar signal on the oscilloscope?

• 200 ms/div

• 20 ms/div

• 40 ms/div

• 100 ms/div

How many divisions does it take for the sonar signal to travel to the seabed and back?

• 3 divisions

• 5 divisions

• 7 divisions

• 10 divisions

What is the total time taken for the sonar signal to travel to the seabed and back?

• 0.3 seconds

• 0.1 seconds

• 0.5 seconds

• 1 second

If the speed of sound is 1500 m/s, what is the distance traveled by the sonar signal?

• 375 meters

• 1500 meters

• 750 meters

• 3000 meters

What is the depth of the sea if the distance traveled by the sonar signal is 750 meters?

• 750 meters

• 1000 meters

• 375 meters

• 500 meters