Robotics Worksheet: Final Test

Robotics lesson 30: Final robotics test · Set 3 · 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.🛞 Circumference = π × … (a) speed (b) diameter (c) radius only (d) weight
2. 2.🛞 A robot has one motor on its left wheel and one on its right wheel. The left motor runs forward and the right motor is stopped. What does the robot do? (a) goes straight forward (b) goes straight back (c) spins right on the spot (d) turns right
3. 3.True or false: the wheels make the wheels turn. (a) True (b) False
4. 4.⚠️ Is it safe to test with an adult near? (a) safe (b) not safe
5. 5.🐞 Why change only one thing at a time when debugging? (a) to make it slower (b) to see what fixed it (c) to save paper (d) to confuse others
6. 6.🛑 A robot is 150 cm from a wall and drives towards it at 20 cm per second. It must stop 30 cm before the wall. For how many seconds can it drive?
7. 7.🔢 To make a robot vacuum avoid a chair, which comes first: “the motors turn it” or “it drives on”? (a) the motors turn it (b) it drives on
8. 8.🌍 Where does a parcel-sorting robot usually work? (a) in a warehouse (b) in space (c) under the sea (d) in a hospital
9. 9.🛞 Both wheels of a two-wheeled robot turn forward. The left wheel turns at 30 turns a minute and the right wheel at 80 turns a minute. What does the robot do? (a) curves to the right (b) goes straight forward (c) curves to the left
10. 10.🧭 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 0°. It turns left 45°, then left 120°. What does the gyro read now (0° to 359°)?
11. 11.🦾 A servo moves from 140° to 100°. How many degrees does it turn?
12. 12.📋 A robot program runs:
    speed = 30
    speed = speed + 15
    speed = speed − 20
    What is the speed at the end?
13. 13.📋 A warehouse robot starts with an empty tray and runs:
    pick up 3 boxes
    put down 1 box
    pick up 2 boxes
    How many boxes are on its tray at the end?
14. 14.🗺️ A robot is on a grid at (8, 5), facing north. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 2
    turn left
    forward 1
    turn left
    forward 1
    turn left
    forward 2
    What is the first number (across) of the square where it stops?
15. 15.🔋 A robot runs on 7 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
16. 16.📋 A robot starts on the start line of a straight track and runs:
    forward 10 cm
    forward 30 cm
    forward 40 cm
    How many cm in front of the start line is it now?
17. 17.🏥 A hospital robot delivers medicine to 5 rooms, one trip for each room. Each trip takes 10 minutes. How many minutes do all the trips take?
18. 18.🗺️ A robot is on a grid at (7, 6), facing south. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
    forward 2
    turn right
    forward 1
    turn left
    forward 3
    turn left
    forward 1
    What is the first number (across) of the square where it stops?
19. 19.🗺️ A robot faces north and moves forward 1 square. Which number goes up by 1? (a) the first one (b) the second (up) one (c) both numbers (d) neither number
20. 20.True or false: “a long factory floor” suits legs. (a) True (b) False
21. 21.🌍 Where does a deep-sea robot usually work? (a) under the sea (b) in space (c) at home (d) in a factory
22. 22.🛡️ What is the most important rule for any robot near people? (a) look cool (b) be cheap (c) go as fast as it can (d) keep people safe
23. 23.🧭 What does a gyro help a robot do? (a) see colours (b) smell smoke (c) turn by exact angles (d) hear claps
24. 24.🦾 A servo arm points right at 0°, straight up at 90° and left at 180°. It is set to 180°. Where does the arm point? (a) points straight up (b) points left (c) points right (d) points up and left
25. 25.📡 An object is 85 cm from a distance sensor. Sound travels about 34 cm every millisecond. After how many milliseconds does the echo come back?
26. 26.⬛ A one-sensor robot follows the edge of a line:
    if (light < 50) { turn right } else { turn left }
    The sensor reads 31. What does it do? (a) turn right (b) turn left
27. 27.⬛ A one-sensor robot follows the edge of a line:
    if (light < 30) { turn right } else { turn left }
    The sensor reads 34. What does it do? (a) turn left (b) turn right
28. 28.⚙️ Two gears are meshed together. How do they turn? (a) in opposite directions (b) one up, one down (c) they do not turn (d) the same direction
29. 29.Which of these is a responsible way to use robots and AI? (a) record people secretly (b) let people say no to it (c) hide that a bot is a bot (d) take off a safety guard
30. 30.⬛ A line follower runs:
    if (right sees black) { turn right } else if (left sees black) { turn left } else { go forward }
    The left sensor sees black and the right sensor sees black. What does it do? (a) turn left (b) go forward (c) turn right
31. 31.🧭 A robot should turn right 45°, but its gyro shows it turned 46°. How many degrees must it turn back to the left?
32. 32.🏆 In a robot challenge each can pushed into the circle scores 5 points. A robot pushes in 5 cans and gets 10 bonus points for parking in the end zone. What is its total score?
33. 33.Which of these is safe? (a) keep fingers off gears (b) poke fingers in gears (c) use a swollen battery (d) charge it on a bed
34. 34.⚙️ Which gear set-up gives this: “the output is weaker”? (a) small drives big (b) big drives small
35. 35.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the if part (b) the else part (c) neither part (d) both parts
36. 36.🧩 Which parts are like the robot’s muscles? (a) the battery (b) the sensors (c) the motors (d) the frame
37. 37.⬛ In a two-sensor line follower, both sensors see white. Where is the line? (a) between the two sensors (b) under the right sensor (c) under the left sensor (d) far behind it
38. 38.True or false: the motors must be charged again. (a) False (b) True
39. 39.Which of these suits legs? (a) a hospital corridor (b) a flat road (c) a muddy building site (d) crossing stepping-stones
40. 40.True or false: the motors holds all parts together. (a) False (b) True

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