Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 22 · 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 75-tooth driver gear turns a 15-tooth driven gear. The driver turns 1 time. How many times does the driven gear turn?
2. 2.🔍 Which is the odd one out? (a) a chip-placing robot (b) a car-welding robot arm (c) a germ-killing UV robot (d) a bottle-filling robot
3. 3.🏆 A robot scores 54, 12 and 39 points in three rounds. All rounds count. What is the total?
4. 4.📋 A robot starts on the start line of a straight track and runs:
   forward 5 cm
   forward 45 cm
   forward 40 cm
   forward 15 cm
   back 15 cm
   How many cm in front of the start line is it now?
5. 5.🐞 This program should draw a regular square (4 equal sides), but it leaves a gap:
   repeat 2 { forward 10 cm; turn right 90° }
   What should the number 2 after “repeat” be?
6. 6.🔋 What does a robot vacuum do when its battery is low? (a) keeps going for ever (b) explodes (c) turns into a car (d) goes back to its dock
7. 7.True or false: “measure parts exactly” is a job people do better. (a) False (b) True
8. 8.Which of these is a job robots do well? (a) crawl in narrow pipes (b) teach with kindness (c) choose a gift for mum (d) make a new friend
9. 9.True or false: “crossing stepping-stones” suits legs. (a) False (b) True
10. 10.📡 A robot is 140 cm from a wall and drives straight at it at 15 cm per second. How far from the wall is it after 6 seconds (in cm)?
11. 11.Which of these is a responsible way to use robots and AI? (a) take off a safety guard (b) copy AI work as your own (c) test robots for safety (d) sell users’ data
12. 12.⚙️ A 24-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
13. 13.🔋 A robot runs on 4 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
14. 14.True or false: a milking robot works on a farm. (a) False (b) True
15. 15.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 17 cm. What does the robot do? (a) turn right (b) go forward
16. 16.🧭 A robot’s gyro reads 0° when it faces north and counts up to 359° as it turns right (east is 90°). It starts at 90°. It turns right 90°, then left 90°, then left 30°. What does the gyro read now (0° to 359°)?
17. 17.🔁 Why do we use a loop to draw a square? (a) loops are colourful (b) the same steps repeat (c) to make it crash (d) squares need 5 sides
18. 18.Which of these is a robot? (a) a wheelbarrow (b) a hand whisk (c) a wind-up toy (d) a fruit-picking robot
19. 19.Which job is done by a welding robot? (a) sprays car bodies evenly (b) coats parts with paint (c) joins metal parts (d) puts items in boxes
20. 20.⚙️ A 12-tooth gear drives a 48-tooth gear. What is the gear ratio (driven teeth ÷ driver teeth)?
21. 21.🤝 Who usually does this better — a robot or a person? “weld 1000 car doors” (a) a robot (b) a person
22. 22.⚠️ Is it safe to stay behind safety lines? (a) not safe (b) safe
23. 23.⬛ 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–white, white–black, black–black, white–white, black–black. How many times does it turn right?
24. 24.🐞 A mistake in a program is called a … (a) bug (b) sensor (c) gear (d) loop
25. 25.🏭 A conveyor belt moves 9 cm each second. How many seconds does a part take to travel 108 cm?
26. 26.True or false: to keep fingers off gears is safe. (a) True (b) False
27. 27.📋 A robot’s battery is at 100%. Each “forward 10 cm” uses 3% and each turn uses 2%. It runs:
    repeat 6 { forward 10 cm; turn right 90° }
    What is the battery level at the end (in %)?
28. 28.⚙️ A 15-tooth driver gear must make the driven gear turn 4 times slower. How many teeth must the driven gear have?
29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 50 cm; turn right 90°; forward 35 cm; turn right 90° }
    How many cm does it drive in all?
30. 30.Which of these is a job robots do well? (a) judge what is fair (b) invent a new game (c) repeat one task all day (d) make a new friend
31. 31.True or false: “measure parts exactly” is a job robots do well. (a) False (b) True
32. 32.🛞 A motor’s 10-tooth gear drives a 30-tooth gear on the wheel axle. The wheels have a diameter of 7 cm (use π = 22/7). The motor turns 6 times. How far does the robot roll (in cm)?
33. 33.🗺️ A robot is on a grid at (2, 6), facing east. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 2
    turn left
    forward 2
    turn right
    forward 2
    What is the first number (across) of the square where it stops?
34. 34.🏥 A surgery robot makes the tool move 3 times less than the surgeon’s hand. The surgeon’s hand moves 27 mm. How many mm does the tool move?
35. 35.🦾 A servo arm points right at 0°, straight up at 90° and left at 180°. It is set to 45°. Where does the arm point? (a) points right (b) points left (c) points up and left (d) points up and right
36. 36.⬛ A line follower runs:
    if (left < 40) { turn left } else if (right < 40) { turn right } else { go forward }
    The left sensor reads 85 and the right sensor reads 60. What does it do? (a) turn right (b) turn left (c) go forward
37. 37.Which job is done by the battery? (a) make the wheels turn (b) runs the program (c) stores energy for parts (d) move the arms and legs
38. 38.🤖 A robot is 80 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
39. 39.🛞 A robot’s wheels have a diameter of 14 cm. Using π = 22/7, how many full turns must they make to roll 88 cm?
40. 40.🌍 Where does a medicine-cart robot usually work? (a) in a hospital (b) at home (c) in a warehouse (d) in a factory

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