Bicycles and other wheels
Tests: 6 of 11 right · Exam: 0 of 4 right · Kind: plain · Understood: 8 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 25 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 · right ✓
«helmet's fine, I only dropped it once and fell on it a bit, no crack» What is right?
- 1. Keep it, helmets get stronger after a hit, like a muscle that has been exercised — no support
- 2. Just tighten the strap and it's fine — no support
- 3. Keep it, no crack means no damage — no support
- 4. Replace it: the foam may be crushed and only works once — ← Mova's choice · ✓ the right answer · score 8
Why: It took the question to ask which statement is true. It chose option 4 with score 8, the only option with support. Its support: lesson 25, line 9: «A helmet is a hard shell over foam that crushes in a crash and absorbs the hit; the foam only works once, so a helmet must be replaced after a crash even if it…», reached through the remembered sentence the question matched. What matched: the same action «replace» (+4); the same thing acted on «helmet» (+4). · the question and its options parsed, with trees and pragmatics
Test 2 · right ✓
«why do cyclists lean? motorbikes too, they're showing off» What is right?
- 1. They lean to keep the rain off — no support
- 2. Yes, it's only for showing off — no support
- 3. Leaning into the bend is how a two-wheeler turns without falling over — ← Mova's choice · ✓ the right answer · score 1
- 4. They lean to see the road better — no support
Why: It took the question to ask why something happens (its cause). It chose option 3 with score 1, the only option with support. Its support: lesson 25, line 15: «A motorbike leans into bends to turn; motorbikes are fast and hard to see, so look twice before crossing.», reached through the option's own match among the sentences about the question's things. What matched: the same place «bends» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 3 · wrong ✗
It's raining and Sam rides down a hill. What is the safe way to stop?
- 1. Use only his feet on the ground, dragging his shoes along — no support
- 2. Brake early with both brakes, the front gently — ✓ the right answer · no support
- 3. Grab only the front brake hard at the bottom — ← Mova's choice · score 2
- 4. Brake hard at the last second — no support
Why: It took the question to ask what it is done to. It chose option 3 with score 2, the only option with support. Its support: lesson 25, line 4: «A bike is one of the most energy-saving ways a person can travel, and with a helmet, lights, good brakes and a safe place to ride, it is a great way to get aro…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+2); the same thing acted on «one» (+1). Against it: a different doer (counts against) (-1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 4 · wrong ✗
In a cartoon, a kid rides home in the dark with no lights and the cars all see him. What is wrong?
- 1. Bikes glow on their own at night — no support
- 2. Nothing, cars have special night eyes — no support
- 3. Drivers would find him hard to see: he needs white front, red back and something bright — ✓ the right answer · no support
- 4. Only cars need lights, not bikes — ← Mova's choice · 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 25, line 10: «A bike needs a white light at the front and a red light at the back at night; reflectors are made of tiny corner shapes that send light straight back to where…», reached through the remembered sentence the question matched. What matched: the same action «need» (+4); the same thing acted on «white light» (+4). Against it: a different doer (counts against) (-2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 5 · wrong ✗
«e-bike is basically a motorbike, so no pedalling needed innit» What is right?
- 1. Yes, it goes on its own like a motorbike — ← Mova's choice · no support
- 2. No, e-bikes have no motor at all — no support
- 3. No, its motor only helps while you pedal — ✓ the right answer · no support
- 4. Yes, but only uphill — 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 6 · right ✓
What would happen if you changed to the smallest back cog to climb a steep hill?
- 1. The chain would lock the pedals in place — no support
- 2. Each pedal turn would be very hard — ← Mova's choice · ✓ the right answer · score 4
- 3. Pedalling would become very easy, like going downhill — no support
- 4. The bike would start to roll backwards down the hill — no support
Why: It took the question to ask what happens next. It chose option 2 with score 4, the only option with support. Its support: lesson 25, line 3: «Gears change how hard each turn of the pedals is. Going up the steep hill to school, you click to a bigger back cog: you pedal more turns, but each turn is eas…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «turn» (+2); the same property (+1); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics
Test 7 · right ✓
«my bike's always flat, mate says it just leaks for no reason» What is the likely cause and the fix?
- 1. A small hole in the inner tube; find it with bubbles in water and patch it — ← Mova's choice · ✓ the right answer · no support
- 2. The pedals push the air out, ride less — no support
- 3. Tyres just lose air for no reason, nothing helps — no support
- 4. The air freezes overnight and shrinks — 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 ✗
«gonna plug my e-bike in on my bed overnight, it's comfy there» What is the answer?
- 1. Fine if you use any charger — ← Mova's choice · no support
- 2. Fine, beds are soft and safe — no support
- 3. No, charge it on a hard surface with the right charger, not overnight in a bedroom — ✓ the right answer · no support
- 4. Fine as long as the window is open — 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 ✓
«scooter's fine on the main road, cars will go round me» What is right?
- 1. Yes, scooters count as cars, so they're allowed to ride in the middle of the lane — score 3
- 2. Yes, if you go fast enough — no support
- 3. Only at night is it a problem — no support
- 4. No, ride scooters and skateboards away from roads, with a helmet — ← 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, against 3 for the next best. Its support: lesson 19, line 14: «In the UK it is illegal to ride a private e-scooter on public roads and pavements; only rental scooters in trial areas are allowed, and only for older riders w…», reached through the remembered sentence the question matched. What matched: the same action «ride» (+4); the same place «public roads» (+4). Against it: a different thing acted on (counts against) (-2). · the question and its options parsed, with trees and pragmatics
Test 10 · right ✓
You open a car door onto a bike lane. What should you do first?
- 1. Nothing, bikes must look out for doors, it's the cyclist's job to keep away — score 9
- 2. Check for bikes coming before opening the door — ← Mova's choice · ✓ the right answer · score 14
- 3. Open it fast so bikes see it — score 14
- 4. Ring a bell to warn cyclists — score 9
Why: It took the question to ask what is done. It chose option 2 with score 14, tied with another option at 14 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 18, line 15: «Child locks are small switches on the edge of the back doors that stop them opening from inside, and passengers get out on the pavement side and check for bike…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same action «open» (+4); the same thing acted on «door» (+4). · the question and its options parsed, with trees and pragmatics
Test 11 · wrong ✗
Count them: a family has 2 bikes, a tricycle and a car. How many wheels?
- 1. 9 — ← Mova's choice · no support
- 2. 11 — ✓ the right answer · no support
- 3. 10 — no support
- 4. 12 — 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 · wrong ✗
Identify the principal reason for which a cyclist ought not to apply the front brake alone with great force.
- 1. The front brake is operative only upon an ascending gradient of some steepness — ← Mova's choice · no support
- 2. Such action causes the rear wheel to accelerate — no support
- 3. Such action may cause the rider to be projected over the handlebars — ✓ the right answer · no support
- 4. Such action invariably severs the brake cable — 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 2 · formal language · wrong ✗
Select the response consistent with the established facts concerning the selection of gears upon an ascending gradient.
- 1. Gears serve solely to alter the sound produced by the bicycle — ← Mova's choice · score 4
- 2. The smallest rear sprocket renders each revolution of the pedals less arduous — no support
- 3. The ascent should be undertaken by pedalling in reverse — no support
- 4. A larger rear sprocket renders each revolution of the pedals less arduous — ✓ the right answer · no support
Why: It took the question to ask which statement is true. It chose option 1 with score 4, the only option with support. Its support: lesson 25, line 3: «Gears change how hard each turn of the pedals is. Going up the steep hill to school, you click to a bigger back cog: you pedal more turns, but each turn is eas…», reached through the option's own match among the sentences about the question's things. What matched: the same action «change» (+2); the same doer «gears» (+2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Exam question 3 · formal language · wrong ✗
Ascertain the reason for which a protective helmet must be replaced following a collision, notwithstanding the absence of visible damage.
- 1. Its strap is invariably lengthened by a collision — ← Mova's choice · no support
- 2. Its weight is increased by any collision so as to render it uncomfortable to wear — no support
- 3. Its colour is impaired by any collision — no support
- 4. Its foam lining absorbs an impact only once, by being crushed — ✓ 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
Exam question 4 · formal language · wrong ✗
Which of the following statements most accurately characterises the function of a reflector?
- 1. It stores daylight and releases it during darkness — ← Mova's choice · no support
- 2. It contains a battery which illuminates it upon the approach of a vehicle — no support
- 3. Minute corner-shaped surfaces return incident light directly towards its source — ✓ the right answer · no support
- 4. It is coated with a substance that glows upon being heated — 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
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/technology/25-bicycles-and-other-wheels/