Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 21 · 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.🌾 How do farm robots help farmers? (a) pick, weed and spray (b) sell the crops (c) eat the weeds (d) sing to the cows
2. 2.🔍 Why do robots need sensors? (a) to use more power (b) to be heavier (c) to know their world (d) to look colourful
3. 3.🧭 A robot should turn right 45°, but its gyro shows it turned 34°. How many degrees must it turn more to the right?
4. 4.🧭 A robot should turn right 45°, but its gyro shows it turned 40°. How many degrees must it turn more to the right?
5. 5.🐞 Why change only one thing at a time when debugging? (a) to make it slower (b) to confuse others (c) to save paper (d) to see what fixed it
6. 6.🛡️ A home robot has a camera. What should happen to photos of your family? (a) keep them private (b) sell them (c) show strangers (d) post them online
7. 7.Which of these is not safe? (a) use a swollen battery (b) keep hair tied back (c) check wires before use (d) switch off before fixing
8. 8.⬛ A line follower runs:
   if (right sees black) { turn right } else if (left sees black) { turn left } else { go forward }
   The left sensor sees white and the right sensor sees black. What does it do? (a) go forward (b) turn left (c) turn right
9. 9.Which of these shows that the robot is sensing? (a) the gripper closes (b) an LED lights up (c) it decides to turn (d) a mic hears a clap
10. 10.🗺️ A robot faces east and turns left. Which way does it face now? (a) west (b) south (c) east (d) north
11. 11.Which of these is a robot? (a) a wheelbarrow (b) a wind-up toy (c) a line-follower robot (d) a skateboard
12. 12.🔋 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%?
13. 13.Which of these shows that the robot is acting? (a) it decides to turn (b) the robot turns left (c) the program picks a path (d) it plans the next move
14. 14.🛑 A robot needs 20 cm to stop once it brakes. It starts braking when its sensor sees a wall 40 cm away. How far from the wall does it stop (in cm)?
15. 15.⬛ Left sensor sees black, right sensor sees white. Which way should a line follower turn? (a) backwards (b) right (c) nowhere (d) left
16. 16.🔋 A robot arm bolted to a factory floor usually gets its power from … (a) a wind-up key (b) a solar panel (c) a coin cell (d) a power cable
17. 17.Which job is done by a painting robot? (a) sprays car bodies evenly (b) seals the cartons (c) joins metal parts (d) checks with a camera
18. 18.🏭 A conveyor belt moves 2 cm each second. How many seconds does a part take to travel 10 cm?
19. 19.🏆 Good or poor teamwork: to listen to every idea? (a) poor teamwork (b) good teamwork
20. 20.🧭 A robot faces north. It does: turn right, turn around, turn left, turn right. Which way does it face now? (a) west (b) east (c) south (d) north
21. 21.Which of these is a job robots do well? (a) comfort a sad friend (b) explore the deep sea (c) judge what is fair (d) write a funny story
22. 22.🔍 Which is the odd one out? (a) a box-stacking robot (b) a lab sample robot (c) a shelf-moving robot (d) a parcel-sorting robot
23. 23.🛑 When should a robot start slowing down? (a) never (b) after hitting the wall (c) only when it is off (d) before it is too close
24. 24.📡 A robot is 300 cm from a wall and drives straight at it at 5 cm per second. How far from the wall is it after 30 seconds (in cm)?
25. 25.🏭 Why do car factories use robot arms for welding? (a) they like heat (b) fast, exact and tireless (c) they are cheap toys (d) they never move
26. 26.📡 A robot stops if an object is closer than 30 cm. Its distance sensor hears the echo after 6 ms (sound: about 34 cm per ms). Does the robot stop? (a) Yes (b) No
27. 27.True or false: to sell users’ data is a responsible way to use robots and AI. (a) False (b) True
28. 28.🗺️ A robot is on a grid at (5, 8), facing west. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 1
    turn right
    forward 1
    On which square does it stop? (a) (4, 8) (b) (9, 4) (c) (4, 9) (d) (5, 9)
29. 29.True or false: a germ-killing UV robot works in a hospital. (a) False (b) True
30. 30.⚙️ What are the bumps round the edge of a gear called? (a) teeth (b) tyres (c) pins (d) spokes
31. 31.📡 A robot stops if an object is closer than 60 cm. Its distance sensor hears the echo after 2 ms (sound: about 34 cm per ms). Does the robot stop? (a) No (b) Yes
32. 32.🔦 A light sensor reads below 60 over a black line and above 60 over the white floor. It reads 83. What is under the sensor? (a) the white floor (b) the black line
33. 33.🛡️ What is the most important rule for any robot near people? (a) keep people safe (b) go as fast as it can (c) be cheap (d) look cool
34. 34.🤖 What three things does every robot do? (a) eat, sleep and play (b) talk, sing and dance (c) only move fast (d) sense, think and act
35. 35.True or false: a germ-killing UV robot works in space. (a) False (b) True
36. 36.🔢 To debug a robot program, which comes first: “fix one thing” or “find the buggy line”? (a) fix one thing (b) find the buggy line
37. 37.Which of these is safe? (a) fix it while it runs (b) reach into a moving arm (c) keep hair tied back (d) charge it on a bed
38. 38.🛑 A robot is 430 cm from a wall. It drives at 50 cm per second until it is 80 cm away, then slows to 10 cm per second and stops when it is 20 cm away. How many seconds does the whole trip take?
39. 39.⬛ The threshold of a light sensor is … (a) the top speed (b) the battery size (c) the black/white cut-off (d) the wheel size
40. 40.🌍 Where does a box-stacking robot usually work? (a) at home (b) in a hospital (c) in a warehouse (d) in a factory

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