Reasoning about the body moving in the world

Tests: 14 of 20 right · Exam: 2 of 4 right · Kind: ★★★ · Understood: 13 of 24 · Run: 2026-10-18, commit f3c23ea72

Lesson 10 of the everyday 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 ✓

A boy in Minnesota walks onto a frozen car park with his hands in his pockets, taking long strides. What should he change?

1. Lean back and walk only on his heels instead — no support
2. Keep both his hands in his pockets for warmth — no support
3. Walk faster so he gets across it much sooner — no support
4. Take small flat steps and free his hands — ← Mova's choice · ✓ the right answer · score 3

Why: It took the question to ask what it is done to. It chose option 4 with score 3, the only option with support. Its support: lesson 1, line 5: «For example, a boy in Denver carrying a tall laundry basket downstairs cannot see the steps, so he takes half the clothes first and holds the rail with his fre…», reached through a sentence linked to the one the question matched. What matched: it fills the role the question asks for (+3); the same thing acted on «steps» (+2). Against it: a different action (counts against) (-1); a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★★ · right ✓

A girl on a bus is standing without holding on, looking at her phone. The bus brakes hard. What happens and why?

1. She floats up because the bus slows down — no support
2. She stumbles forward as her body keeps moving — ← Mova's choice · ✓ the right answer · score 4
3. Nothing, because the bus stops gently — no support
4. She falls backwards because the bus pushes her — score 4

Why: It took the question to ask which statement is true. 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 2, line 6: «A girl in Leeds tripped while running and threw her hand straight out to stop herself; all her weight landed on one stiff wrist and it broke.», reached through the same lesson line as the sentence the question matched. What matched: the same action «trip» (+2); the same doer «girl» (+2). · the question and its options parsed, with trees and pragmatics

Test 3 · ★★★ · right ✓

Why do gymnasts land on thick mats and not on the hard floor?

1. The floor would pull them down harder — no support
2. The mat lets them stop more slowly and gently — ← Mova's choice · ✓ the right answer · score 3
3. Mats make gymnasts lighter — no support
4. Mats make them jump higher next time — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 3, the only option with support. Its support: lesson 10, line 5: «Stopping slowly is gentler than stopping suddenly, which is why bent knees, sand, mats and helmet foam soften a landing: a girl in Edinburgh jumping into a san…», reached through the same lesson line as the sentence the question matched. What matched: the same action «stop» (+2); the same property (+1). · the question and its options parsed, with trees and pragmatics

Test 4 · ★★★ · wrong ✗

A child jumps off a swing at its highest point at the front. Where does she land?

1. Right under the swing — ← Mova's choice · no support
2. Further forward than she expected — ✓ the right answer · no support
3. Behind the swing — no support
4. Exactly back on the spot where she jumped from — 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 5 · ★★★ · wrong ✗

Two hikers in Colorado climb a steep trail. One stands straight up, the other leans forward. Who is more likely to topple backwards?

1. The one leaning forward — ← Mova's choice · score 6
2. The one standing straight up — ✓ the right answer · no support
3. Neither, hills do not affect balance — no support
4. Both equally — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 6, the only option with support. Its support: lesson 3, line 16: «A backpack that is too heavy makes you lean forward and can make your back and shoulders hurt.», reached through the remembered sentence the question matched. What matched: the same action «lean» (+3); the same property (+3). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 6 · ★★★ · right ✓

Why do people sprinkle grit or sand on icy paths?

1. It gives shoes more grip on the ice — ← Mova's choice · ✓ the right answer · score 9
2. It makes the ice thicker — no support
3. It makes the ice more slippery so it melts away faster — no support
4. It makes the path warmer at once — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 9, the only option with support. Its support: lesson 10, line 16: «Grit or sand sprinkled on an icy path gives shoes more grip.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «grit» (+3); the same action «give» (+2); the same thing acted on «more grip» (+2); the same receiver «shoes» (+2). · the question and its options parsed, with trees and pragmatics

Test 7 · ★★★ · wrong ✗

If there were no friction at all, what would happen when you tried to walk?

1. You would float up above the ground into the air — score 2
2. Nothing would change — no support
3. Your feet would slide and you could not push off — ✓ the right answer · no support
4. You would walk much faster — ← Mova's choice · score 4

Why: It took the question to ask what happens next. It chose option 4 with score 4, against 2 for the next best. Its support: lesson 10, line 3: «Grip (friction) between your shoes and the ground is what lets you push, turn and stop; ice has a very thin, slippery wet layer on top, so there is little grip…», reached through what followed the sentence the question matched. What matched: the same action «walk» (+4). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★★ · right ✓

Why does a car seat belt keep you safe when the car stops suddenly?

1. It holds you so your body does not fly forward — ← Mova's choice · ✓ the right answer · no support
2. It makes the car brake faster — no support
3. It keeps you warm in the seat — no support
4. It stops gravity pulling you down — 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 ✓

Which person is least likely to fall over on a rocking boat?

1. One standing with feet apart and knees bent — ← Mova's choice · ✓ the right answer · score 5
2. One standing with feet together and stiff legs — no support
3. One standing on tiptoe — score 5
4. One standing on one leg — score 5

Why: It took the question to ask who or what does it. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 9, line 20: «Heat exhaustion (feeling weak, dizzy and sick from too much heat) can turn into heatstroke, a medical emergency; one warning sign is that a hot person stops sw…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «hot person» (+3). Against it: a different action (counts against) (-3). · the question and its options parsed, with trees and pragmatics

Test 10 · ★★★ · wrong ✗

An egg dropped onto a pillow does not break, but one dropped onto a stone floor does. Why?

1. The pillow makes the egg's shell harder — ← Mova's choice · no support
2. The egg falls more slowly onto pillows — no support
3. The pillow lets it stop more slowly — ✓ the right answer · no support
4. The stone floor pulls the egg down faster — 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 11 · ★★★ · right ✓

bus stopped hard, we all went flying forward, why

1. Our bodies kept moving when the bus stopped — ← Mova's choice · ✓ the right answer · score 4
2. The bus pushed us forward — no support
3. The brakes pulled us — no support
4. Gravity pulls forward on buses when they slow down — 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 10, line 4: «Because a moving body keeps moving, when a bus brakes you lurch forward, and if you jump off a swing while it is moving you fly on at its speed and land badly,…», reached through the same lesson line as the sentence the question matched. What matched: the same action «keep» (+2); the same doer «moving body» (+2). · the question and its options parsed, with trees and pragmatics

Test 12 · ★★★ · right ✓

icy path to school, how do i walk

1. Small flat steps, weight over your feet — ← Mova's choice · ✓ the right answer · no support
2. Big fast strides — no support
3. Lean far back as you walk, on your heels — no support
4. Run so you slide less — 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 13 · ★★★ · right ✓

why u lean forward walking up a hill

1. To see the top of the hill much sooner — no support
2. To keep your weight over your feet — ← Mova's choice · ✓ the right answer · score 6
3. Because gravity points up the hill — no support
4. Because your legs get shorter on a slope — 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 10, line 10: «Walking uphill, people lean forward to keep their weight over their feet.», reached through a sentence linked to the one the question matched. What matched: the same action «keep» (+2); the same thing acted on «weight» (+2); the same place «feet» (+2). · the question and its options parsed, with trees and pragmatics

Test 14 · ★★★ · right ✓

why do they put foam in helmets

1. It lets your head stop more slowly — ← Mova's choice · ✓ the right answer · no support
2. It keeps your head warm — no support
3. It makes the helmet heavier — no support
4. It holds the helmet on tight so it never falls off — 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 15 · ★★★ · wrong ✗

dared to jump off the shed roof, there's a trampoline under

1. Yes, if you land with straight legs on the middle of it — ← Mova's choice · no support
2. Yes, if you jump far out — no support
3. Yes, the trampoline makes it safe — no support
4. Say no, you can miss it or bounce off — ✓ 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 16 · ★★★ · right ✓

whys running on the wet tiles a problem, i'm fast

1. Wet tiles are only a problem when walking — no support
2. Water makes your shoes grip better — no support
3. You can slip and hit your head on the floor — ← Mova's choice · ✓ the right answer · score 3
4. Fast people never slip — 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 10, line 7: «A girl in Melbourne ran full speed round a corner at school and crashed into another child; both hit their heads, and one needed stitches.», reached through the same lesson line as the sentence the question matched. What matched: the same action «hit» (+2); the same thing acted on «heads» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 17 · ★★★ · right ✓

why do we land with bent knees off the climbing wall

1. Bent knees spread the force and protect you — ← Mova's choice · ✓ the right answer · no support
2. Bent knees make you bounce back up — no support
3. It is only how the teachers like it, for no reason — no support
4. Straight knees are too slow — 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 18 · ★★★ · right ✓

lad at footy says his brother was on the bus when it braked and he flew all the way to the driver lol

1. Exaggerated maybe, but the lesson is real: when a bus brakes you lurch forward, so sit or hold on — ← Mova's choice · ✓ the right answer · score 8
2. It means only the front of the bus is dangerous — no support
3. It proves buses are safer when you stand up — no support
4. It is only a joke, so you never need to hold on — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 8, the only option with support. Its support: lesson 10, line 4: «Because a moving body keeps moving, when a bus brakes you lurch forward, and if you jump off a swing while it is moving you fly on at its speed and land badly,…», reached through the remembered sentence the question matched. What matched: the same doer «bus» (+5); the same action «brake» (+3). · the question and its options parsed, with trees and pragmatics

Test 19 · ★★★ · right ✓

someone reckons if you land on straight legs from the shed roof your legs go into your body

1. It is just made up, so jumping from roofs is fine — no support
2. It is true only for grown-ups who are heavy — no support
3. It is true word for word, so jump with bent arms instead — no support
4. That bit is a scary exaggeration, but landing hard on straight legs really can break bones, so do not jump — ← Mova's choice · ✓ the right answer · score 3

Why: It took the question to ask which statement is true. It chose option 4 with score 3, the only option with support. Its support: lesson 10, line 22: «Landing from a big height on straight legs can break ankles, legs or the spine.», reached through the same lesson line as the sentence the question matched. What matched: the same action «break» (+2); the same doer «landing» (+2). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 20 · ★★★ · wrong ✗

Harry slipped on the ice at the bus stop and landed on his bum, everyone saw, haha shall i tell nan

1. Tell people he did it on purpose to show off — ← Mova's choice · no support
2. Tell everyone at school so they laugh too — no support
3. Post it so the whole town knows — no support
4. Telling your nan is fine if you ask whether he is hurt, not to laugh at him — ✓ 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 1 · formal language · right ✓

Which of the following statements most accurately characterises the phenomenon whereby passengers lurch forward when a vehicle brakes abruptly?

1. A body in motion continues to move until a force retards or arrests it — ← Mova's choice · ✓ the right answer · score 9
2. The brakes exert a force pushing the passengers forward — no support
3. The air within the vehicle propels the passengers — no support
4. Gravity acts horizontally within a moving vehicle — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 9, the only option with support. Its support: lesson 10, line 4: «Because a moving body keeps moving, when a bus brakes you lurch forward, and if you jump off a swing while it is moving you fly on at its speed and land badly,…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+4); the same doer «moving body» (+3); the same action «move» (+2). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

Identify the principal reason for which ice affords so little grip to footwear.

1. Its surface bears an exceedingly thin and slippery layer — ← Mova's choice · ✓ the right answer · no support
2. It attracts the soles of shoes by magnetism — no support
3. It is warmer than the air above it — no support
4. Its surface is excessively rough, uneven and full of sharp points — 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 3 · formal language · wrong ✗

Select the response that is consistent with the established facts concerning the softening of an impact.

1. The duration of the stopping exerts no influence upon the force — ← Mova's choice · no support
2. A soft surface renders an impact more severe — no support
3. An impact is rendered gentler where the stopping takes place over a longer period — ✓ the right answer · no support
4. An impact is rendered gentler where the stopping is made as abrupt as possible — 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 ✗

It is given that a heavy bag is carried in the right hand. Determine the manner in which the body adjusts so as to remain balanced.

1. The body leans backward exclusively — ← Mova's choice · no support
2. The body leans further towards the right — no support
3. The body makes no adjustment of any kind — no support
4. The body leans towards the left — ✓ 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

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