Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 31 · 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.🛑 A robot is 45 cm from a wall and drives towards it at 5 cm per second. It must stop 30 cm before the wall. For how many seconds can it drive?
2. 2.🤝 Robots are most useful for jobs that are … (a) kind and caring (b) about feelings (c) fun and creative (d) dull, dirty or dangerous
3. 3.🔁 Why do we use a loop to draw a square? (a) squares need 5 sides (b) to make it crash (c) loops are colourful (d) the same steps repeat
4. 4.Which job needs a temperature sensor? (a) find the brightest spot (b) warn if motors get hot (c) spot a red ball (d) follow a black line
5. 5.⬛ A line follower runs:
   if (left sees black) { turn left } else if (right sees black) { turn right } else { go forward }
   It checks its sensors 5 times (left–right): black–black, white–black, black–white, white–white, white–white. How many times does it turn right?
6. 6.🛞 Both wheels of a two-wheeled robot turn forward. The left wheel turns at 80 turns a minute and the right wheel at 10 turns a minute. What does the robot do? (a) curves to the left (b) curves to the right (c) goes straight forward
7. 7.⚙️ A 12-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) slower (c) faster
8. 8.📡 An object is 119 cm from a distance sensor. Sound travels about 34 cm every millisecond. After how many milliseconds does the echo come back?
9. 9.🔦 A light sensor reads 10 over black and 60 over white. A good threshold is halfway between them. What is it?
10. 10.🔦 A light sensor reads 30 over black and 70 over white. A good threshold is halfway between them. What is it?
11. 11.🧩 Which parts are like the robot’s muscles? (a) the battery (b) the motors (c) the frame (d) the sensors
12. 12.🛞 Both wheels of a two-wheeled robot turn forward. The left wheel turns at 20 turns a minute and the right wheel at 30 turns a minute. What does the robot do? (a) curves to the right (b) curves to the left (c) goes straight forward
13. 13.🔢 To debug a robot program, which comes first: “run the program” or “spot what went wrong”? (a) run the program (b) spot what went wrong
14. 14.🔍 Which is the odd one out? (a) check wires before use (b) stand in a robot’s path (c) fix it while it runs (d) poke fingers in gears
15. 15.🏭 Why are factory robot arms kept inside fences? (a) to keep people safe (b) to keep them warm (c) to hide them (d) to stop them escaping
16. 16.🧩 Which part of a robot stores energy for parts? (a) the frame (b) the controller (c) the battery (d) the sensors
17. 17.⬛ A line follower runs:
    if (right sees black) { turn right } else if (left sees black) { turn left } else { go forward }
    The left sensor sees black and the right sensor sees black. What does it do? (a) go forward (b) turn right (c) turn left
18. 18.Which job needs a touch sensor? (a) warn if motors get hot (b) start on a hand clap (c) know a button is pressed (d) hear a whistle
19. 19.🗺️ A robot faces north and moves forward 1 square. Which number goes up by 1? (a) both numbers (b) the second (up) one (c) the first one (d) neither number
20. 20.🛞 Which way of moving suits this best: “a field of tall boulders”? (a) wheels (b) tracks (c) propellers (d) legs
21. 21.🤖 A robot is 104 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
22. 22.🛡️ Responsible or not: to hide its mistakes? (a) not responsible (b) responsible
23. 23.Which of these is not a responsible way to use robots and AI? (a) ask before taking photos (b) copy AI work as your own (c) say when it is a bot (d) keep recordings private
24. 24.True or false: to learn the stop button is not safe. (a) False (b) True
25. 25.🦾 A servo moves from 160° to 180°. How many degrees does it turn?
26. 26.🌍 Where does a deep-sea robot usually work? (a) under the sea (b) on a farm (c) in space (d) in a warehouse
27. 27.Which of these is a job people do better? (a) make a new friend (b) explore the deep sea (c) lift very heavy parts (d) crawl in narrow pipes
28. 28.🐞 A robot starts at (4, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (1, 4). Its program:
    1. forward 3
    2. turn right
    3. forward 3
    It stops at (7, 4) instead. Which line has the bug? (a) line 3 (b) line 1 (c) line 2
29. 29.⚙️ A 45-tooth driver gear turns a 15-tooth driven gear. The driver turns 10 times. How many times does the driven gear turn?
30. 30.🔍 Which is the odd one out? (a) the gripper closes (b) the arm lifts a box (c) a bumper is pressed (d) the wheels spin
31. 31.🔍 Which is the odd one out? (a) post photos of strangers (b) say when it is a bot (c) design for all people (d) fix bugs quickly
32. 32.🔋 A robot runs on 3 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
33. 33.🗺️ A robot is on a grid at (7, 5), facing east. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 2
    turn right
    forward 1
    turn right
    forward 1
    turn left
    forward 3
    Which way does it face at the end? (a) south (b) north (c) west (d) east
34. 34.⬛ In a two-sensor line follower, both sensors see white. Where is the line? (a) under the left sensor (b) under the right sensor (c) far behind it (d) between the two sensors
35. 35.🏭 A robot arm packs 12 boxes every minute. How many boxes does it pack in 3 minutes?
36. 36.⚠️ What should you do before fixing a robot? (a) switch it off (b) speed it up (c) keep it running (d) hold its wheels
37. 37.🛑 A robot is 110 cm from a wall. It drives at 25 cm per second until it is 60 cm away, then slows to 5 cm per second and stops when it is 20 cm away. How many seconds does the whole trip take?
38. 38.🔋 A robot’s battery holds 200 mAh and the robot uses 100 mA. For how many hours can it run?
39. 39.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
40. 40.🗺️ A robot is on a grid at (5, 8), facing north. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 1
    turn right
    forward 2
    turn right
    forward 1
    turn right
    forward 1
    What is the first number (across) of the square where it stops?

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