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Robotics

Robotics · Quick practice · answer shown after each question

Sensors and signals

Question 1 of 10

Question 1 of 10

An active sensor differs from a passive sensor because it

Question 2 of 10

Question 2 of 10

An analogue-to-digital converter (ADC)

Question 3 of 10

Question 3 of 10

Which sensor would best tell a robot that it has bumped into a wall?

Question 4 of 10

Question 4 of 10

A thermistor is a sensor whose resistance changes with

Question 5 of 10

Question 5 of 10

Converting an analogue signal into a digital one involves sampling and

Question 6 of 10

Question 6 of 10

A potentiometer can act as a sensor of

Question 7 of 10

Question 7 of 10

Noise in a sensor signal is

Question 8 of 10

Question 8 of 10

Two-point calibration is suitable for a sensor whose output is

Question 9 of 10

Question 9 of 10

The Nyquist rule says a signal must be sampled at least

Question 10 of 10

Question 10 of 10

A sensor samples a water level of 74.78 cm, which is quantised to 70 cm. What is the percentage error?

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.