Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 29 · 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 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 18 times. How far does the robot roll (in cm)?
2. 2.⬛ Left sensor sees black, right sensor sees white. Which way should a line follower turn? (a) left (b) backwards (c) nowhere (d) right
3. 3.🔋 A robot uses 10% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
4. 4.🛞 Which way of moving suits this best: “a smooth classroom floor”? (a) legs (b) tracks (c) propellers (d) wheels
5. 5.🔍 Which sensor helps a robot hear a whistle? (a) a touch sensor (b) a gyro sensor (c) a light sensor (d) a sound sensor
6. 6.🧠 Sense, think or act: “the program picks a path”? (a) act (b) sense (c) think
7. 7.🧭 How many degrees is a half turn (turn around)? (a) 90° (b) 180° (c) 360° (d) 45°
8. 8.🔁 A drawing robot runs:
   repeat 6 { forward 30 cm; turn right 60° }
   Which shape does it draw? (a) hexagon (b) octagon (c) pentagon (d) triangle
9. 9.🏆 Good or poor teamwork: to help a stuck team? (a) good teamwork (b) poor teamwork
10. 10.True or false: “spins round and round” is true of a DC motor. (a) False (b) True
11. 11.🛑 A robot is 135 cm from a wall and drives towards it at 15 cm per second. It must stop 30 cm before the wall. For how many seconds can it drive?
12. 12.🔋 A robot uses 5% of its battery every 6 minutes. How many minutes does a full battery (100%) last?
13. 13.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 19 cm and the light reading is 70. What does the robot do? (a) turn left (b) go forward (c) stop
14. 14.🔍 Which is the odd one out? (a) a pair of scissors (b) a bicycle (c) a robot lawn mower (d) a hand whisk
15. 15.🤖 A robot is 68 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
16. 16.Which of these is a robot? (a) a line-follower robot (b) a garden swing (c) a hand whisk (d) a wind-up toy
17. 17.🌍 Where does a milking robot usually work? (a) in space (b) under the sea (c) in a hospital (d) on a farm
18. 18.True or false: to measure a turn angle, use a temperature sensor. (a) False (b) True
19. 19.🐞 A mistake in a program is called a … (a) gear (b) loop (c) bug (d) sensor
20. 20.⚠️ Is it safe to learn the stop button? (a) safe (b) not safe
21. 21.🤖 if (bumper is pressed) { back up and turn left } else { go forward }
    The bumper is pressed. What does the robot do? (a) back up and turn left (b) go forward
22. 22.True or false: the battery must be charged again. (a) False (b) True
23. 23.🧠 Sense, think or act: “a sensor checks distance”? (a) sense (b) act (c) think
24. 24.🔢 A gear ratio of 3 (driven ÷ driver) means the driven gear turns … (a) 3 times slower (b) 3 times louder (c) 3 times bigger (d) 3 times faster
25. 25.🛡️ Responsible or not: to say when it is a bot? (a) not responsible (b) responsible
26. 26.Which job needs a distance sensor? (a) stop before a wall (b) read a QR code (c) warn if motors get hot (d) stay balanced upright
27. 27.🧩 Which part of a robot measure light and sound? (a) the frame (b) the sensors (c) the gripper (d) the battery
28. 28.Which of these is not safe? (a) switch off before fixing (b) poke fingers in gears (c) keep fingers off gears (d) charge on a hard surface
29. 29.🔍 Which is the odd one out? (a) test with an adult near (b) fix it while it runs (c) keep hair tied back (d) learn the stop button
30. 30.⚙️ How do you make a DC motor spin the other way? (a) shake it (b) paint it red (c) swap its two wires (d) add more wheels
31. 31.🗺️ A robot is on a grid at (1, 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 right
    forward 1
    turn right
    forward 2
    On which square does it stop? (a) (6, 2) (b) (2, 6) (c) (0, 6) (d) (3, 6)
32. 32.⚠️ Is it safe to poke fingers in gears? (a) not safe (b) safe
33. 33.🐞 This program should draw a regular pentagon (5 equal sides), but it leaves a gap:
    repeat 4 { forward 10 cm; turn right 72° }
    What should the number 4 after “repeat” be?
34. 34.True or false: “spins faster with more V” is true of a DC motor. (a) False (b) True
35. 35.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
36. 36.🤖 if (bumper is pressed) { back up and turn right } else { go forward }
    The bumper is not pressed. What does the robot do? (a) back up and turn right (b) go forward
37. 37.🔍 Which is the odd one out? (a) a garden swing (b) a robot lawn mower (c) a factory robot arm (d) a line-follower robot
38. 38.🧠 Which part of a robot does the “think” job? (a) the frame (b) the bumper (c) the wheels (d) the controller
39. 39.Which of these is safe? (a) wear loose sleeves (b) poke fingers in gears (c) fix it while it runs (d) check wires before use
40. 40.🏥 How does a surgery robot help a doctor? (a) talks to patients (b) does the job alone (c) gives medicines (d) makes tiny steady moves

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