Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 24 · 40 questions

Robot tip (Find the topic, use the idea): Find the topic: robot basics, moving, gears, sensors or programs. Use that lesson’s rule — sense/think/act, teeth × turns, circumference × turns, 17 cm per ms, follow every line. Safety answers are always: switch off, stay out of reach, an adult nearby, the emergency stop.

1. 1.🐞 This program should draw a regular pentagon (5 equal sides), but it leaves a gap:
   repeat 2 { forward 10 cm; turn right 72° }
   What should the number 2 after “repeat” be?
2. 2.🔋 A robot’s battery holds 600 mAh and the robot uses 100 mA. For how many hours can it run?
3. 3.🧭 What does a gyro help a robot do? (a) see colours (b) hear claps (c) smell smoke (d) turn by exact angles
4. 4.🔢 Gear ratio = driven teeth ÷ … (a) driver teeth (b) number of gears (c) motor volts (d) wheel size
5. 5.🏆 What matters most in a school robot competition? (a) winning at any cost (b) hiding mistakes (c) copying others (d) learning and fair play
6. 6.🏆 A robot scores 19, 26 and 33 points in three rounds. What is its average score?
7. 7.🏥 Who controls a surgery robot during an operation? (a) nobody (b) a trained surgeon (c) a child (d) the patient
8. 8.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the if part (b) both parts (c) the else part (d) neither part
9. 9.🔦 A light sensor reads below 30 over a black line and above 30 over the white floor. It reads 48. What is under the sensor? (a) the white floor (b) the black line
10. 10.Which job needs a gyro sensor? (a) stay balanced upright (b) spot a red ball (c) stop before a wall (d) follow a black line
11. 11.Which of these is a responsible way to use robots and AI? (a) hide that a bot is a bot (b) copy AI work as your own (c) build a bully robot (d) say when it is a bot
12. 12.🛞 A robot’s wheels have a diameter of 28 cm. Using π = 22/7, how far does the robot roll when the wheels turn 3 times (in cm)?
13. 13.⬛ Going too fast round a sharp bend, a line follower may … (a) turn into a car (b) grow wheels (c) lose the line (d) get heavier
14. 14.🤖 What makes a robot different from a simple machine? (a) it is very big (b) it has a face (c) it is made of metal (d) it senses and decides
15. 15.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (6, 4). Its program:
    1. forward 2
    2. turn left
    3. forward 2
    It stops at (2, 4) instead. Which line has the bug? (a) line 1 (b) line 3 (c) line 2
16. 16.🛑 A robot moves 50 cm every second and checks its distance sensor every 500 ms. How far does it move between two checks (in cm)? =
17. 17.🔍 What does a gyro sensor measure? (a) colour (b) turning (rotation) (c) sound (d) temperature
18. 18.⚙️ DC motor or servo motor: which one spins faster with more V? (a) a servo motor (b) a DC motor
19. 19.Which job is done by a painting robot? (a) moves parts onto a belt (b) joins metal parts (c) uses heat to join steel (d) sprays car bodies evenly
20. 20.🔢 To debug a robot program, which is the LAST step? (a) spot what went wrong (b) fix one thing (c) find the buggy line (d) test it again
21. 21.🔍 Which is the odd one out? (a) a gyro feels a turn (b) a buzzer beeps (c) a sensor checks distance (d) a sensor reads light
22. 22.🔢 To take part in a robot challenge, which comes first: “plan the design” or “build and program”? (a) build and program (b) plan the design
23. 23.Which of these is not safe? (a) charge on a hard surface (b) learn the stop button (c) block the emergency stop (d) keep fingers off gears
24. 24.⬛ A line follower runs:
    if (left < 40) { turn left } else if (right < 40) { turn right } else { go forward }
    The left sensor reads 40 and the right sensor reads 80. What does it do? (a) turn left (b) turn right (c) go forward
25. 25.Which of these is a responsible way to use robots and AI? (a) hide that a bot is a bot (b) add an emergency stop (c) record people secretly (d) sell users’ data
26. 26.🔍 Which is the odd one out? (a) a mic hears a clap (b) a sensor checks distance (c) a bumper is pressed (d) it compares two numbers
27. 27.Which job needs a sound sensor? (a) start on a hand clap (b) warn if motors get hot (c) feel a bump into a wall (d) stay balanced upright
28. 28.True or false: the motors move the arms and legs. (a) True (b) False
29. 29.🦾 A servo arm points right at 0°, straight up at 90° and left at 180°. It is set to 135°. Where does the arm point? (a) points up and right (b) points straight up (c) points up and left (d) points right
30. 30.True or false: a planet rover is not a robot. (a) False (b) True
31. 31.🧠 Sense, think or act: “a bumper is pressed”? (a) sense (b) act (c) think
32. 32.True or false: to trust every AI answer is not a responsible way to use robots and AI. (a) False (b) True
33. 33.🧭 A robot keeps turning right by 30° at a time. How many turns make one full circle?
34. 34.🌍 Where does a parcel-sorting robot usually work? (a) at home (b) in a factory (c) in a warehouse (d) under the sea
35. 35.True or false: “moving under water” suits propellers. (a) False (b) True
36. 36.⚙️ A 10-tooth driver gear turns a 40-tooth driven gear. The driver turns 20 times. How many times does the driven gear turn?
37. 37.🔢 To take part in a robot challenge, which is the FIRST step? (a) plan the design (b) build and program (c) test and improve (d) read the rules
38. 38.⚙️ What are the bumps round the edge of a gear called? (a) pins (b) teeth (c) spokes (d) tyres
39. 39.🏭 A robot arm packs 12 boxes every minute. How many boxes does it pack in 5 minutes?
40. 40.🧭 A robot spins 90° every second. How many seconds does it take to turn 90°?

Free robotics lessons, practice and worksheets at talentjr.in/robotics-for-kids