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Robotics

Robotics · Quick practice · answer shown after each question

Motors and power

Question 1 of 10

Question 1 of 10

A motor driver is needed because microcontroller pins

Question 2 of 10

Question 2 of 10

A stepper motor has a step angle of 1.8°. How many steps make one full revolution?

Question 3 of 10

Question 3 of 10

A motor that can be turned to a precise angle, such as 90°, is a

Question 4 of 10

Question 4 of 10

A motor shaft turning at 120 rpm with a wheel of radius 5 cm moves the robot at about

Question 5 of 10

Question 5 of 10

A DC motor's direction can be reversed by

Question 6 of 10

Question 6 of 10

A stepper motor moves in

Question 7 of 10

Question 7 of 10

Torque is the

Question 8 of 10

Question 8 of 10

PWM (pulse-width modulation) is often used to

Question 9 of 10

Question 9 of 10

Gears that reduce speed increase the

Question 10 of 10

Question 10 of 10

A motor drives a robot wheel through a 3 : 1 gear reduction. The wheel turns

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