Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 23 · 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 of these is not a robot? (a) a delivery robot (b) a wind-up toy (c) a fruit-picking robot (d) a pool-cleaning robot
2. 2.⬛ A one-sensor robot follows the edge of a line:
   if (light < 30) { turn right } else { turn left }
   The sensor reads 18. What does it do? (a) turn right (b) turn left
3. 3.🔍 Which sensor helps a robot measure a turn angle? (a) a light sensor (b) a distance sensor (c) a temperature sensor (d) a gyro sensor
4. 4.True or false: to charge it on a bed is safe. (a) False (b) True
5. 5.🏭 A conveyor belt moves 2 cm each second. How many seconds does a part take to travel 24 cm?
6. 6.Which of these is not safe? (a) stay behind safety lines (b) fix it while it runs (c) test with an adult near (d) keep hair tied back
7. 7.🔋 What should you do with a swollen or damaged robot battery? (a) throw it in a fire (b) charge it again (c) squeeze it flat (d) give it to an adult
8. 8.🧭 How many degrees is a right-angle turn? (a) 360° (b) 45° (c) 90° (d) 180°
9. 9.📡 A robot stops if an object is closer than 50 cm. Its distance sensor hears the echo after 6 ms (sound: about 34 cm per ms). Does the robot stop? (a) Yes (b) No
10. 10.📡 A robot stops if an object is closer than 60 cm. Its distance sensor hears the echo after 8 ms (sound: about 34 cm per ms). Does the robot stop? (a) Yes (b) No
11. 11.🔋 A robot arm bolted to a factory floor usually gets its power from … (a) a power cable (b) a wind-up key (c) a solar panel (d) a coin cell
12. 12.⚠️ What should every big robot have in case of danger? (a) a music player (b) a paint brush (c) an emergency stop button (d) a cup holder
13. 13.🗺️ A robot is on a grid at (7, 5), facing west. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 1
    turn left
    forward 2
    turn left
    forward 1
    turn left
    forward 2
    On which square does it stop? (a) (8, 5) (b) (7, 5) (c) (7, 3) (d) (5, 7)
14. 14.🏆 Good or poor teamwork: to blame one person? (a) good teamwork (b) poor teamwork
15. 15.True or false: to find the brightest spot, use a light sensor. (a) True (b) False
16. 16.🐞 This program should draw a regular square (4 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 90° }
    What should the number 3 after “repeat” be?
17. 17.🛞 Both wheels of a two-wheeled robot turn forward. The left wheel turns at 20 turns a minute and the right wheel at 80 turns a minute. What does the robot do? (a) curves to the left (b) goes straight forward (c) curves to the right
18. 18.⚙️ A 15-tooth driver gear turns a 75-tooth driven gear. The driver turns 20 times. How many times does the driven gear turn?
19. 19.True or false: a weeding robot works on a farm. (a) False (b) True
20. 20.🛡️ Responsible or not: to copy AI work as your own? (a) responsible (b) not responsible
21. 21.⬛ 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): white–black, white–white, black–white, white–white, black–black. How many times does it turn right?
22. 22.🤖 Is a line-follower robot a robot? (a) a robot (b) not a robot
23. 23.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
24. 24.🏭 Which factory robot coats parts with paint? (a) a painting robot (b) a packing robot (c) a pick-and-place robot (d) a welding robot
25. 25.True or false: to feel a bump into a wall, use a camera. (a) True (b) False
26. 26.🐞 A robot starts at (5, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 6). Its program:
    1. forward 3
    2. turn left
    3. forward 3
    It stops at (2, 5) instead. Which line has the bug? (a) line 3 (b) line 1 (c) line 2
27. 27.🛞 A robot’s wheels have a diameter of 7 cm. Using π = 22/7, how far does the robot roll when the wheels turn 3 times (in cm)?
28. 28.🧭 A robot keeps turning right by 72° at a time. How many turns make one full circle?
29. 29.🛑 A robot needs 25 cm to stop once it brakes. It starts braking when its sensor sees a wall 60 cm away. How far from the wall does it stop (in cm)?
30. 30.🏭 A robot that picks up an item and puts it in another place is called … (a) a space robot (b) a talking robot (c) a pick-and-place robot (d) a lawn robot
31. 31.🏭 Which job is a factory robot arm best at? (a) telling jokes (b) making new friends (c) one task again and again (d) choosing a new design
32. 32.🏆 Good or poor teamwork: to do all the work alone? (a) poor teamwork (b) good teamwork
33. 33.🏭 4 robots each sort 60 parcels an hour. How many parcels do they sort together in 6 hours?
34. 34.📋 A robot program runs:
    speed = 10
    speed = 10
    speed = 10
    What is the speed at the end?
35. 35.True or false: the battery holds all parts together. (a) True (b) False
36. 36.📡 A robot stops if an object is closer than 60 cm. Its distance sensor hears the echo after 6 ms (sound: about 34 cm per ms). Does the robot stop? (a) Yes (b) No
37. 37.🚀 A radio message takes 11 minutes to travel between the team and a far-away rover. The rover answers at once. How many minutes after sending a command does the team get the answer?
38. 38.⬛ The threshold of a light sensor is … (a) the wheel size (b) the top speed (c) the battery size (d) the black/white cut-off
39. 39.🧩 Which parts are like the robot’s muscles? (a) the sensors (b) the motors (c) the frame (d) the battery
40. 40.⚙️ DC motor or servo motor: which one moves an arm joint? (a) a DC motor (b) a servo motor

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