Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 10 · 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 gear set-up gives this: “the output is stronger”? (a) big drives small (b) small drives big
2. 2.⚙️ A 20-tooth driver gear turns a 10-tooth driven gear. The driver turns 3 times. How many times does the driven gear turn?
3. 3.🛡️ Responsible or not: to take off a safety guard? (a) not responsible (b) responsible
4. 4.True or false: to take off a safety guard is not a responsible way to use robots and AI. (a) True (b) False
5. 5.True or false: to measure a turn angle, use a distance sensor. (a) True (b) False
6. 6.🔋 A robot uses 10% of its battery every 6 minutes. How many minutes does a full battery (100%) last?
7. 7.🔁 How many sides does a hexagon have? (a) 5 (b) 8 (c) 7 (d) 6
8. 8.🛑 A robot is 260 cm from a wall. It drives at 20 cm per second until it is 100 cm away, then slows to 5 cm per second and stops when it is 10 cm away. How many seconds does the whole trip take?
9. 9.⚙️ A big gear drives a small gear. The small gear turns … (a) at the same speed (b) faster but weaker (c) slower but stronger (d) not at all
10. 10.🧩 Which part of a robot roll it across the floor? (a) the gripper (b) the motors (c) the wheels (d) the battery
11. 11.🚀 A radio message takes 13 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?
12. 12.🤖 What makes a robot different from a simple machine? (a) it is very big (b) it is made of metal (c) it senses and decides (d) it has a face
13. 13.⚙️ A 15-tooth driver gear must make the driven gear turn 4 times slower. How many teeth must the driven gear have?
14. 14.🔍 Which sensor helps a robot follow a black line? (a) a gyro sensor (b) a touch sensor (c) a light sensor (d) a distance sensor
15. 15.🔦 A light sensor reads 40 over black and 80 over white. A good threshold is halfway between them. What is it?
16. 16.Which of these robots works in a warehouse? (a) a medicine-cart robot (b) a window-cleaning robot (c) a box-stacking robot (d) a bottle-filling robot
17. 17.🤖 Who writes the program that tells a robot what to do? (a) nobody at all (b) the robot’s wheels (c) people (programmers) (d) the battery
18. 18.📋 A robot program runs:
    speed = 50
    speed = speed + 5
    speed = speed − 5
    speed = speed + 15
    What is the speed at the end?
19. 19.🔢 To debug a robot program, what comes right after “run the program”? (a) find the buggy line (b) fix one thing (c) test it again (d) spot what went wrong
20. 20.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 35 cm; turn right 90° }
    How many cm does it drive in all?
21. 21.🔋 What powers most moving robots? (a) a tiny magnet (b) a water tank (c) a rechargeable battery (d) a candle
22. 22.🏭 6 robots each sort 15 parcels an hour. How many parcels do they sort together in 6 hours?
23. 23.🏥 A surgery robot makes the tool move 3 times less than the surgeon’s hand. The surgeon’s hand moves 6 mm. How many mm does the tool move?
24. 24.🔁 A drawing robot runs:
    repeat 4 { forward 100 cm; turn right 90° }
    Which shape does it draw? (a) octagon (b) square (c) triangle (d) pentagon
25. 25.Which of these suits legs? (a) a long factory floor (b) soft snow (c) a field of tall boulders (d) a muddy building site
26. 26.🤖 A robot is 83 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
27. 27.🤖 Obstacle avoiding: what should a robot do when something is close? (a) speed up (b) push it hard (c) stop or turn away (d) close its eyes
28. 28.🛑 Why do robots check their sensors many times a second? (a) to feel tired (b) to waste battery (c) to react in time (d) to look busy
29. 29.🔍 For a robot’s controller, is a sensor an input or an output? (a) a wheel (b) a gear (c) an input (d) an output
30. 30.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
31. 31.True or false: “moves an arm joint” is true of a DC motor. (a) True (b) False
32. 32.True or false: “choose a gift for mum” is a job people do better. (a) True (b) False
33. 33.True or false: to block the emergency stop is safe. (a) True (b) False
34. 34.Which of these is a job robots do well? (a) write a funny story (b) invent a new game (c) plan a birthday party (d) repeat one task all day
35. 35.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
36. 36.🔍 Which is the odd one out? (a) plan a birthday party (b) search a smoky building (c) work in great heat (d) spray crops evenly
37. 37.🛞 A motor’s 10-tooth gear drives a 20-tooth gear on the wheel axle. The wheels have a diameter of 28 cm (use π = 22/7). The motor turns 12 times. How far does the robot roll (in cm)?
38. 38.🔢 To take part in a robot challenge, what comes right after “plan the design”? (a) compete and learn (b) test and improve (c) read the rules (d) build and program
39. 39.🔋 A robot’s battery holds 1200 mAh and the robot uses 200 mA. For how many hours can it run?
40. 40.🦾 A servo moves from 0° to 150°. How many degrees does it turn?

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