Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 26 · 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 program runs:
   speed = 40
   speed = speed + 10
   speed = speed + 15
   What is the speed at the end?
2. 2.⚠️ Where should you charge a robot’s battery? (a) next to a heater (b) on a hard, clear surface (c) under a pillow (d) on a soft bed
3. 3.📋 A robot program runs:
   speed = 20
   speed = speed + 15
   speed = 30
   speed = 50
   What is the speed at the end?
4. 4.🔦 A light sensor reads 40 over black and 90 over white. A good threshold is halfway between them. What is it?
5. 5.🗺️ A robot is on a grid at (2, 5), facing east. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
   forward 1
   turn left
   forward 3
   turn right
   forward 2
   What is the first number (across) of the square where it stops?
6. 6.🦾 A servo moves from 110° to 90°. How many degrees does it turn?
7. 7.🛞 A robot’s wheels have a diameter of 10 cm. Using π = 3.14, how far does the robot roll when the wheels turn 2 times (in cm)? =
8. 8.⬛ The threshold of a light sensor is … (a) the battery size (b) the black/white cut-off (c) the top speed (d) the wheel size
9. 9.🏆 A robot scores 38, 29 and 23 points in three rounds. All rounds count. What is the total?
10. 10.🏆 A robot scores 21, 24 and 27 points in three rounds. What is its average score?
11. 11.🔍 Which is the odd one out? (a) it decides to turn (b) the program picks a path (c) a camera spots a wall (d) it decides to stop
12. 12.⚙️ DC motor or servo motor: which one usually turns 0° to 180°? (a) a DC motor (b) a servo motor
13. 13.🗺️ A robot faces east and turns left. Which way does it face now? (a) east (b) south (c) west (d) north
14. 14.🛑 A robot is 40 cm from a wall and drives towards it at 5 cm per second. It must stop 20 cm before the wall. For how many seconds can it drive?
15. 15.🔁 A drawing robot runs:
    repeat 5 { forward 25 cm; turn right 72° }
    Which shape does it draw? (a) square (b) octagon (c) pentagon (d) hexagon
16. 16.🛑 A robot is 65 cm from a wall and drives towards it at 5 cm per second. It must stop 20 cm before the wall. For how many seconds can it drive?
17. 17.⚙️ A 15-tooth driver gear must make the driven gear turn 4 times slower. How many teeth must the driven gear have?
18. 18.🏆 Before a robot competition, what should a team read first? (a) nothing (b) the menu (c) the rules (d) a comic
19. 19.True or false: a factory robot arm is not a robot. (a) False (b) True
20. 20.🧭 A robot faces west. It does: turn around, turn left, turn left. Which way does it face now? (a) west (b) north (c) east (d) south
21. 21.True or false: “spins faster with more V” is true of a servo motor. (a) True (b) False
22. 22.Which job needs a distance sensor? (a) spot a red ball (b) feel a bump into a wall (c) stop before a wall (d) start on a hand clap
23. 23.📋 A robot program runs:
    speed = 10
    speed = 50
    speed = speed − 10
    speed = 60
    speed = 30
    What is the speed at the end?
24. 24.🗺️ Does “turn left” move the robot to a new square? (a) Yes, two squares (b) Yes, back to start (c) No, it only turns (d) Yes, one square
25. 25.Which job needs a sound sensor? (a) feel a bump into a wall (b) know a button is pressed (c) hear a whistle (d) read a QR code
26. 26.Which of these is a job people do better? (a) plan a birthday party (b) explore the deep sea (c) measure parts exactly (d) spray crops evenly
27. 27.Which of these robots works on a farm? (a) a box-stacking robot (b) a bottle-filling robot (c) a reef-mapping robot (d) a weeding robot
28. 28.Which of these suits propellers? (a) flying over a field (b) deep mud (c) a muddy building site (d) crossing stepping-stones
29. 29.🗺️ A robot faces north and moves forward 1 square. Which number goes up by 1? (a) the first one (b) the second (up) one (c) both numbers (d) neither number
30. 30.🔋 A robot uses 2% of its battery every 3 minutes. How many minutes does a full battery (100%) last?
31. 31.🔋 A robot uses 5% of its battery every 1 minute. How many minutes does a full battery (100%) last?
32. 32.⚙️ DC motor or servo motor: which one turns to an exact angle? (a) a servo motor (b) a DC motor
33. 33.🔢 A gear ratio of 3 (driven ÷ driver) means the driven gear turns … (a) 3 times louder (b) 3 times slower (c) 3 times bigger (d) 3 times faster
34. 34.🧭 How many degrees is a half turn (turn around)? (a) 360° (b) 180° (c) 45° (d) 90°
35. 35.🧭 What does a gyro help a robot do? (a) smell smoke (b) hear claps (c) turn by exact angles (d) see colours
36. 36.📋 The “state” of a robot means … (a) its paint colour (b) its values right now (c) its box size (d) its price
37. 37.⚠️ A robot arm suddenly moves towards you. What should you do? (a) push it hard (b) stand still in front (c) step back, call an adult (d) grab the arm
38. 38.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the if part (b) neither part (c) the else part (d) both parts
39. 39.🔋 A robot’s battery is at 40% and charging adds 20% every 10 minutes. How many minutes until it is full (100%)?
40. 40.True or false: to feel a bump into a wall, use a sound sensor. (a) True (b) False

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