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WorksheetsLO11_Lesson 6
Total questions: 20
Worksheet time: 20mins
Digital soundwaves can be easily interpreted by computers
True
False
A discrete sound signal
Analogue
Digital
A digital sound signal has a fixed number of states (0 or 1).
True
False
In analogue sound signals, there are no in-between values.
True
False
How many analogue pins are their in an Arduino Uno board?
6
12
16
14
How many digital pins are their in an Arduino Uno board?
6
12
16
14
The term ADC refers to
Analogue-to-data converter
Analogue-to-digital circuit
Analogue-to-digital conversion
Another digital converter
The term DAC refers to
Data-to-Analogue converter
Digital-to-analogue conversion
Digital-to-analogue circuit
Digital and converter
What is needed to convert a recorded sound into a digital format that the computer can understand?
DAC
ADC
ABC
What is needed to convert an MP3 sound file into an analogue format that the speakers can understand to produce a sound?
DAC
ADC
ABC
Sampling rate is
the sample of samples.
the number of songs recorded.
the rate of the cost of samples.
the number of samples taken per second.
A (a) sampling rate means that very few samples of the analogue signal are taken.
A (a) sampling rate means that a lot of samples of the analogue signal are taken.
One advantage of a low sampling rate is
Takes a lot of storage space
Takes little storage space
Produces a low quality digital data file
Produces a high quality digital data file
One advantage of a high sampling rate is
Takes a lot of storage space
Takes little storage space
Produces a low quality digital data file
Produces a high quality digital data file
Which leg of a potentiometer is an analogue pin usually connected to?
left pin
middle pin
right pin
Which leg of a potentiometer is grounded?
left pin
middle pin
right pin
Which leg of a potentiometer is connected to 5V?
left pin
middle pin
right pin
A potentiometer is ______ component.
digital
analogue
