Self-driving cars and machines that run themselves
Tests: 6 of 12 right · Exam: 4 of 4 right · Kind: ★★ · Understood: 12 of 16 · Run: 2026-10-18, commit f3c23ea72
Lesson 40 of the technology course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: the lesson in the corpora.
Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.
Test 1 · ★★ · wrong ✗
«the car drives itself so i can just walk out in front, it'll stop» What is the right rule?
- 1. Walk out only in front of robotaxis — no support
- 2. Walk out if you wave at the car — no support
- 3. Self-driving cars always stop, so walk out — ← Mova's choice · score 8
- 4. Always cross safely: stop, look and listen — ✓ the right answer · score 2
Why: It took the question to ask which statement is true. It chose option 3 with score 8, against 2 for the next best. Its support: lesson 18, line 2: «If a car does stop suddenly in a crash, everything inside that is not held keeps going forward at the same speed, including people, which is why seat belts mat…», reached through the remembered sentence the question matched. What matched: the same action «stop» (+4); the same doer «car» (+4). The right option, 4, scored 2. · the question and its options parsed, with trees and pragmatics
Test 2 · ★★ · right ✓
«my dad's car brakes by itself so he can play on his phone» What is the best correction?
- 1. He must play only with one hand — no support
- 2. Only on motorways he can play — no support
- 3. Right, the car does everything now, so the driver can play or even sleep a bit — no support
- 4. Driver assistance only helps; the driver must still pay attention — ← Mova's choice · ✓ the right answer · score 6
Why: It took the question to ask which statement is true. It chose option 4 with score 6, the only option with support. Its support: lesson 40, line 9: «Driver assistance, like lane keeping and automatic emergency braking, uses cameras to help the driver, and many new cars can brake by themselves to avoid a cra…», reached through the same lesson line as the sentence the question matched. What matched: the same action «pay» (+2); the same doer «driver» (+2); the same thing acted on «attention» (+2). · the question and its options parsed, with trees and pragmatics
Test 3 · ★★ · right ✓
«let's play in the shop doors, they're like a game, open shut open shut» What is the rule?
- 1. It is fine if you hold the door — no support
- 2. It is fine if you are fast — no support
- 3. Don't play in automatic doors; they can close on you — ← Mova's choice · ✓ the right answer · score 12
- 4. It is fine if the shop is empty and nobody needs to come in or out — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 12, the only option with support. Its support: lesson 40, line 10: «Automatic doors use sensors, some with a radar beam and some with infrared light, to detect people coming, and motors open them; never play in them, because th…», reached through the remembered sentence the question matched. What matched: the same action «close» (+4); the same doer «door» (+4); the same circumstance (+4). · the question and its options parsed, with trees and pragmatics
Test 4 · ★★ · wrong ✗
«machine ate my coin, rock it till it drops» What should you do?
- 1. Climb on it to reach the snack — ← Mova's choice · score 2
- 2. Rock it gently from the side, just a little bit, until the coin drops out — no support
- 3. Never rock it; tell a shop worker or an adult — ✓ the right answer · no support
- 4. Tip it forward a little — score 2
Why: It took the question to ask what is done. It chose option 1 with score 2, tied with another option at 2 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 12, line 17: «Never climb into a washing machine or dryer, never use a hairdryer near a bath or sink, because water and electricity together can kill, never vacuum pets, hai…», reached through the option's own match among the sentences about the question's things. What matched: the same place «washing machine» (+2); it fills the role the question asks for (+2); the same action «climb» (+1). Against it: one says «not», the other does not (counts against) (-3). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 5 · ★★ · wrong ✗
In a cartoon, a cash machine gives money to anyone who smiles at it. What does a real one need?
- 1. A coin to start it — no support
- 2. A big smile and a wave — no support
- 3. A card with a chip and the right PIN, checked with the bank — ✓ the right answer · score 2
- 4. Only a password said out loud into the little microphone next to the screen — ← Mova's choice · score 11
Why: It took the question to ask what it is done to. It chose option 4 with score 11, against 2 for the next best. Its support: lesson 37, line 15: «Never give your password to anyone online, never click strange links or open attachments from strangers, and tell an adult.», reached through the same lesson line as the sentence the question matched. What matched: the same action «tell» (+6); the same doer «you» (+5). The right option, 3, scored 2. · the question and its options parsed, with trees and pragmatics
Test 6 · ★★ · wrong ✗
What would happen if a self-driving car's cameras and lidar were covered in thick mud?
- 1. It would use its radio to see — score 2
- 2. Nothing, it drives from memory — ← Mova's choice · score 4
- 3. It would drive better with less to look at — score 4
- 4. It could not see the street properly, so it should stop safely — ✓ the right answer · no support
Why: It took the question to ask what happens next. It chose option 2 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 39, line 10: «Pavement delivery robots are small robots on wheels that use cameras and sensors to drive along pavements; in Milton Keynes six-wheeled ones deliver groceries,…», reached through what followed the sentence the question matched. What matched: the same action «drive» (+6). Against it: a different doer (counts against) (-2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 7 · ★★ · wrong ✗
Count them: a robot dog has 4 legs. How many legs do 3 robot dogs and 1 real dog have together?
- 1. 8 — ← Mova's choice · no support
- 2. 12 — no support
- 3. 7 — no support
- 4. 16 — ✓ the right answer · no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Test 8 · ★★ · wrong ✗
Count them: at the self-checkout you scan 5 apples, but then put back 2. How many apples should the scale feel?
- 1. 2 — ← Mova's choice · no support
- 2. 5 — no support
- 3. 3 — ✓ the right answer · no support
- 4. 7 — no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Test 9 · ★★ · right ✓
Count them: a vending machine has 4 rows with 6 spirals each. How many spirals?
- 1. 24 — ← Mova's choice · ✓ the right answer · no support
- 2. 20 — no support
- 3. 10 — no support
- 4. 28 — no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Test 10 · ★★ · right ✓
«if robots do all the boring jobs, what's left for me when i grow up, nothing» What is the best answer?
- 1. People design, build, fix and run machines, and new jobs keep appearing — ← Mova's choice · ✓ the right answer · score 11
- 2. You will have to work for the robots — score 2
- 3. Nothing, robots will do every job — score 4
- 4. Only jobs on Mars will be left — score 4
Why: It took the question to ask what it is done to. It chose option 1 with score 11, against 4 for the next best. Its support: lesson 40, line 5: «Machines take over boring, repeating jobs, and people design, build, fix and run them, and new jobs keep appearing. One day the person who invents the next mac…», reached through the same lesson line as the sentence the question matched. What matched: the same action «keep» (+6); the same doer «new jobs» (+5). · the question and its options parsed, with trees and pragmatics
Test 11 · ★★ · right ✓
Look back over the course: what do a power station, a phone and a robot vacuum all need to run?
- 1. Nothing, they run by magic — no support
- 2. Only good weather — no support
- 3. A person pushing them all day long, taking turns with a friend — score 6
- 4. Energy, and parts that follow rules people designed — ← Mova's choice · ✓ the right answer · score 9
Why: It took the question to ask what it is done to. It chose option 4 with score 9, against 6 for the next best. Its support: lesson 40, line 4: «This is the last lesson of the course, so look back at the big ideas. People build roads, power stations, cables, satellites and robots; energy is turned from…», reached through the same lesson line as the sentence the question matched. What matched: the same action «follow» (+6); it fills the role the question asks for (+2); the same thing acted on «rules» (+1). · the question and its options parsed, with trees and pragmatics
Test 12 · ★★ · right ✓
Why is it a good idea that a smart home's accounts are kept secure?
- 1. Otherwise a stranger could control its lights, heating or locks — ← Mova's choice · ✓ the right answer · no support
- 2. The house will forget you otherwise — no support
- 3. Secure accounts make the heating warmer — no support
- 4. Smart homes break if you use them too much and the heating stops for good — no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · right ✓
Which of the following statements most accurately characterises the operation of lidar?
- 1. Distance is determined by measuring the interval before laser light returns to the instrument — ← Mova's choice · ✓ the right answer · score 4
- 2. Distance is determined by radio enquiry of other vehicles — no support
- 3. Distance is determined by counting the markings upon the road — no support
- 4. Distance is determined by the echoes of the engine — no support
Why: It took the question to ask who or what does it. It chose option 1 with score 4, the only option with support. Its support: lesson 27, line 4: «Railways add their own dangers: trains are fast and quiet, a second one can follow the first, and live rails and wires can kill without any train at all. The r…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same doer «lights» (+2). Against it: a different action (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Exam question 2 · formal language · right ✓
Select the response consistent with the established facts concerning the responsibility of a driver of a vehicle equipped with driver assistance.
- 1. The driver may occupy a rear seat — no support
- 2. The driver shall continue to pay attention to the road at all times — ← Mova's choice · ✓ the right answer · score 6
- 3. The driver may operate a telephone without restriction whilst the vehicle is in motion — no support
- 4. The driver may sleep until the vehicle comes to rest — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 40, line 9: «Driver assistance, like lane keeping and automatic emergency braking, uses cameras to help the driver, and many new cars can brake by themselves to avoid a cra…», reached through the same lesson line as the sentence the question matched. What matched: the same action «pay» (+2); the same doer «driver» (+2); the same thing acted on «attention» (+2). · the question and its options parsed, with trees and pragmatics
Exam question 3 · formal language · right ✓
Identify the principal cause of the notice concerning an unexpected item in the bagging area of a self-checkout.
- 1. The machine seeks conversation with the customer — no support
- 2. The camera has detected the facial expression of the customer and found it displeasing — no support
- 3. The weight detected by the scale does not correspond to the items scanned — ← Mova's choice · ✓ the right answer · score 3
- 4. The barcode is of an incorrect colour — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 3, the only option with support. Its support: lesson 40, line 11: «A self-checkout scanner reads barcodes, and a scale checks the weight of each item, which is why it complains about an unexpected item in the bagging area.», reached through the same lesson line as the sentence the question matched. What matched: the same thing acted on «weight» (+2); the same circumstance (+2). Against it: a different action (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Exam question 4 · formal language · right ✓
Ascertain the consequence, in respect of employment, of the assumption by machines of repetitive tasks.
- 1. All human employment ceases — no support
- 2. People continue to design, construct, repair and operate machines, and new occupations arise — ← Mova's choice · ✓ the right answer · score 3
- 3. Remuneration is paid exclusively to robots — no support
- 4. Machines determine the allocation of employment — score 3
Why: It took the question to ask which statement is true. It chose option 2 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 40, line 3: «Machines that run themselves are all around you: the shop door that slides open as you walk up, the self-checkout that weighs your apples, the vending machine…», reached through the same lesson line as the sentence the question matched. What matched: the same action «run» (+2); the same thing acted on «machines» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/technology/40-self-driving-cars-and-machines-that-run-themselves/