Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 4 · 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.🧩 Which parts are like the robot’s muscles? (a) the battery (b) the frame (c) the motors (d) the sensors
2. 2.⬛ A one-sensor robot follows the edge of a line:
   if (light < 30) { turn right } else { turn left }
   The sensor reads 22. What does it do? (a) turn right (b) turn left
3. 3.🏥 A hospital robot delivers medicine to 4 rooms, one trip for each room. Each trip takes 5 minutes. How many minutes do all the trips take?
4. 4.🔋 A robot’s battery is at 100%. Each lap of the track uses 25%. How many laps can it do before the battery reaches 0%?
5. 5.⚙️ A 15-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
6. 6.🔋 A robot’s battery is at 25% and charging adds 25% every 10 minutes. How many minutes until it is full (100%)?
7. 7.🚀 A planet rover drives 2 cm every second. How far does it go in 20 seconds (in cm)?
8. 8.⚙️ A 20-tooth driver gear turns an 80-tooth driven gear. The driver turns 32 times. How many times does the driven gear turn?
9. 9.🛞 How does a two-wheeled robot with no steering turn? (a) it jumps (b) it stops for ever (c) one wheel runs faster (d) it uses a sail
10. 10.⚙️ A motor makes 320 turns a minute with a 20-tooth gear on it. That gear drives an 80-tooth gear. How many turns a minute does the 80-tooth gear make?
11. 11.🛞 Both wheels of a two-wheeled robot turn forward. The left wheel turns at 50 turns a minute and the right wheel at 100 turns a minute. What does the robot do? (a) goes straight forward (b) curves to the right (c) curves to the left
12. 12.🤖 if (bumper is pressed) { back up and turn left } else { go forward }
    The bumper is pressed. What does the robot do? (a) go forward (b) back up and turn left
13. 13.🔍 Why do robots need sensors? (a) to be heavier (b) to know their world (c) to look colourful (d) to use more power
14. 14.📋 A robot’s battery is at 100%. Each “forward 10 cm” uses 2% and each turn uses 1%. It runs:
    repeat 3 { forward 10 cm; turn right 90° }
    What is the battery level at the end (in %)?
15. 15.🔋 A robot’s battery is at 50%. Each lap of the track uses 25%. How many laps can it do before the battery reaches 0%?
16. 16.🛞 A robot’s wheels have a diameter of 21 cm. Using π = 22/7, how far does the robot roll when the wheels turn 4 times (in cm)?
17. 17.⬛ A one-sensor robot follows the edge of a line:
    if (light < 40) { turn right } else { turn left }
    The sensor reads 19. What does it do? (a) turn left (b) turn right
18. 18.Which of these is not safe? (a) charge on a hard surface (b) use a swollen battery (c) stay behind safety lines (d) learn the stop button
19. 19.True or false: the controller runs the program. (a) False (b) True
20. 20.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 4 { forward 10 cm; turn right 45° }
    What should the number 4 after “repeat” be?
21. 21.⚠️ Is it safe to keep fingers off gears? (a) not safe (b) safe
22. 22.⚙️ A motor makes 160 turns a minute with an 8-tooth gear on it. That gear drives a 32-tooth gear. How many turns a minute does the 32-tooth gear make?
23. 23.True or false: the gripper picks up objects. (a) False (b) True
24. 24.🚀 A planet rover drives 6 cm every second. How far does it go in 20 seconds (in cm)?
25. 25.⚙️ A 20-tooth driver gear turns an 80-tooth driven gear. The driven gear turns 8 times. How many times did the driver turn?
26. 26.🔍 Which is the odd one out? (a) copy AI work as your own (b) ask before taking photos (c) hide its mistakes (d) post photos of strangers
27. 27.🤖 A toy car moves only while you press its remote. It cannot sense or decide. Is it a robot? (a) Yes (b) No
28. 28.🛞 A robot’s wheels have a diameter of 6 cm. Using π = 3.14, how far does the robot roll when the wheels turn 2 times (in cm)? =
29. 29.📋 A warehouse robot starts with an empty tray and runs:
    pick up 3 boxes
    pick up 2 boxes
    put down 4 boxes
    pick up 2 boxes
    How many boxes are on its tray at the end?
30. 30.🔦 A light sensor reads below 40 over a black line and above 40 over the white floor. It reads 18. What is under the sensor? (a) the black line (b) the white floor
31. 31.🌍 Where does a box-stacking robot usually work? (a) at home (b) in space (c) in a warehouse (d) on a farm
32. 32.🏆 A team’s robot scores 71, 48 and 42 in three rounds. Only the best round counts. What is the team’s score?
33. 33.🧭 A robot faces north. It does: turn left, turn left, turn around. Which way does it face now? (a) east (b) west (c) north (d) south
34. 34.⬛ A one-sensor robot follows the edge of a line:
    if (light < 30) { turn right } else { turn left }
    The sensor reads 7. What does it do? (a) turn left (b) turn right
35. 35.⚙️ A 20-tooth driver gear turns a 60-tooth driven gear. The driver turns 18 times. How many times does the driven gear turn?
36. 36.Which of these is not safe? (a) test with an adult near (b) charge on a hard surface (c) check wires before use (d) poke fingers in gears
37. 37.🌍 Where does a surgery robot usually work? (a) on a farm (b) at home (c) in a factory (d) in a hospital
38. 38.🛞 A robot wheel has a radius of 21 cm. Using π = 22/7, what is its circumference (in cm)?
39. 39.🚀 A planet rover drives 2 cm every second. How far does it go in 15 seconds (in cm)?
40. 40.🧠 Sense, think or act: “a buzzer beeps”? (a) think (b) sense (c) act

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