Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 30 · 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.True or false: “loose sand dunes” suits wheels. (a) True (b) False
2. 2.🤖 What three things does every robot do? (a) sense, think and act (b) eat, sleep and play (c) only move fast (d) talk, sing and dance
3. 3.🔋 A robot runs on 4 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
4. 4.True or false: to say when it is a bot is not a responsible way to use robots and AI. (a) False (b) True
5. 5.🛞 How far does a wheel roll in one full turn? (a) its diameter (b) its circumference (c) its radius (d) its weight
6. 6.🛡️ A home robot has a camera. What should happen to photos of your family? (a) show strangers (b) sell them (c) post them online (d) keep them private
7. 7.🏭 A welding robot takes 10 seconds for each weld. How many welds does it finish in 1 minute?
8. 8.⚠️ What should every big robot have in case of danger? (a) a paint brush (b) an emergency stop button (c) a cup holder (d) a music player
9. 9.📡 A robot is 270 cm from a wall and drives straight at it at 20 cm per second. How far from the wall is it after 1 second (in cm)?
10. 10.🤖 Obstacle avoiding: what should a robot do when something is close? (a) stop or turn away (b) close its eyes (c) speed up (d) push it hard
11. 11.🤝 Who usually does this better — a robot or a person? “measure parts exactly” (a) a person (b) a robot
12. 12.🛑 A robot is 150 cm from a wall and drives towards it at 20 cm per second. It must stop 10 cm before the wall. For how many seconds can it drive?
13. 13.Which of these is safe? (a) reach into a moving arm (b) poke fingers in gears (c) use a swollen battery (d) learn the stop button
14. 14.📋 A robot’s battery is at 100%. Each “forward 10 cm” uses 4% and each turn uses 1%. It runs:
    repeat 4 { forward 10 cm; turn right 90° }
    What is the battery level at the end (in %)?
15. 15.🛞 Why do most indoor robots use wheels? (a) they float (b) they look funny (c) fast and easy on floors (d) they climb stairs
16. 16.⬛ A line follower runs:
    if (left < 40) { turn left } else if (right < 40) { turn right } else { go forward }
    The left sensor reads 25 and the right sensor reads 20. What does it do? (a) turn right (b) turn left (c) go forward
17. 17.Which of these is a job robots do well? (a) teach with kindness (b) measure parts exactly (c) comfort a sad friend (d) make a new friend
18. 18.📋 A warehouse robot starts with an empty tray and runs:
    pick up 1 box
    pick up 2 boxes
    put down 2 boxes
    pick up 3 boxes
    How many boxes are on its tray at the end?
19. 19.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    How many cm does it drive in all?
20. 20.True or false: “a flat road” suits legs. (a) True (b) False
21. 21.⚙️ A motor makes 60 turns a minute with a 12-tooth gear on it. That gear drives a 36-tooth gear. How many turns a minute does the 36-tooth gear make?
22. 22.🔍 Which is the odd one out? (a) block the emergency stop (b) learn the stop button (c) charge it on a bed (d) fix it while it runs
23. 23.🤖 What does an “if” let a robot do? (a) skip all sensors (b) charge itself (c) go faster always (d) choose using a sensor
24. 24.🔢 To climb a steep ramp, a robot needs a gear ratio that is … (a) big (slow and strong) (b) zero (c) never important (d) small (fast, weak)
25. 25.🌍 Where does a deep-sea robot usually work? (a) in a hospital (b) under the sea (c) in a factory (d) at home
26. 26.📡 A distance sensor sends a sound pulse and hears the echo 17 ms later. Sound travels about 34 cm every millisecond. How far away is the object (in cm)?
27. 27.🚀 A rover drives 5 cm every second for 4 minutes. How many metres does it travel? =
28. 28.🔦 A robot has a left and a right light sensor. Below 50 means black. The left sensor reads 10 and the right sensor reads 30. Which sensor is over the black line? (a) both sensors (b) neither sensor (c) the right sensor (d) the left sensor
29. 29.🧠 A robot keeps repeating sense → think → act. This repeating is called … (a) a gear (b) a battery (c) a crash (d) a loop
30. 30.⚙️ A common servo can turn from 0° up to about … (a) 18° (b) 1800° (c) 10° (d) 180°
31. 31.⬛ A line follower runs:
    if (left < 40) { turn left } else if (right < 40) { turn right } else { go forward }
    The left sensor reads 20 and the right sensor reads 80. What does it do? (a) turn right (b) go forward (c) turn left
32. 32.🚀 A radio message takes 5 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?
33. 33.🔍 Which is the odd one out? (a) cheer up a lonely child (b) explore the deep sea (c) weld 1000 car doors (d) lift very heavy parts
34. 34.Which of these is not a robot? (a) a floor-cleaning robot (b) a fruit-picking robot (c) a planet rover (d) a hand-pushed trolley
35. 35.🔢 Gear ratio = driven teeth ÷ … (a) driver teeth (b) motor volts (c) wheel size (d) number of gears
36. 36.🔍 Which is the odd one out? (a) a lab sample robot (b) a medicine-cart robot (c) a germ-killing UV robot (d) a weeding robot
37. 37.🗺️ A robot faces north and moves forward 1 square. Which number goes up by 1? (a) neither number (b) the second (up) one (c) the first one (d) both numbers
38. 38.Which of these is safe? (a) poke fingers in gears (b) reach into a moving arm (c) fix it while it runs (d) charge on a hard surface
39. 39.🛞 A robot’s wheels have a diameter of 42 cm. Using π = 22/7, how many full turns must they make to roll 924 cm?
40. 40.🧭 A robot faces south. It does: turn around, turn right. Which way does it face now? (a) south (b) west (c) north (d) east

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