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Robotics

Robotics · Quick practice · answer shown after each question

Sensors

Question 1 of 10

Question 1 of 10

An LDR is used to detect

Question 2 of 10

Question 2 of 10

An LDR (light-dependent resistor) senses

Question 3 of 10

Question 3 of 10

A PIR sensor detects

Question 4 of 10

Question 4 of 10

An ultrasonic sensor measures distance by

Question 5 of 10

Question 5 of 10

An ultrasonic pulse returns to the sensor after 0.002 s. If sound travels at 340 m/s, how far away is the obstacle?

Question 6 of 10

Question 6 of 10

Which sensor measures tilt and orientation in a balancing robot?

Question 7 of 10

Question 7 of 10

An ultrasonic echo returns after 2 ms. If sound travels at 340 m/s, the obstacle distance is

Question 8 of 10

Question 8 of 10

A sensor used to follow a black line on a white floor is an

Question 9 of 10

Question 9 of 10

An ultrasonic sensor measures

Question 10 of 10

Question 10 of 10

A touch (bump) sensor detects

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