--- title: Thinking like a scientist: the body and physics — how Mova does on the tests · World description: Lesson 40 of the world course of Mova's primary school: 7 of 14 tests right, exam 3 of 4, every question with the options, the student's choice, the right answer and why it chose. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/school-run/world/40-body-and-physics-reasoning/) [home](https://md.mova.elamur.ai/free/en/) / [at school](https://md.mova.elamur.ai/free/en/school-run/) / [World](https://md.mova.elamur.ai/free/en/school-run/world/) / 40 # Thinking like a scientist: the body and physics **Tests:** 7 of 14 right · **Exam:** 3 of 4 right · **Kind:** ★★★ · **Understood:** 12 of 18 · **Run:** 2026-10-18, commit `f3c23ea72` Lesson 40 of the world 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](https://md.mova.elamur.ai/free/en/corpora/school/world/40-body-and-physics-reasoning/). Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/). ### Test 1 · ★★★ · wrong ✗ {#t1} A boy in Toronto sees lightning and counts 9 seconds until the thunder. About how far away is the storm? - **1.** About 30 kilometres — **← Mova's choice** · no support - **2.** About 300 metres — no support - **3.** About 9 kilometres — no support - **4.** About 3 kilometres — **✓ 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](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t1/) ### Test 2 · ★★★ · wrong ✗ {#t2} A dog has no sweat over most of its body and pants on hot days. Why might panting help it? - **1.** Panting makes the dog's fur thinner — no support - **2.** Panting brings colder blood from the ground — no support - **3.** Panting blows the Sun away — **← Mova's choice** · score 2 - **4.** Water evaporates from its tongue and mouth and takes heat away — **✓ the right answer** · no support **Why:** It took the question to ask why something happens (its cause). It chose option 3 with score 2, the only option with support. Its support: lesson 23, line 10: «Grasses and many trees are pollinated by the wind and have small, dull flowers with lots of light pollen; they make huge amounts because most of it blows away…», reached through the option's own match among the sentences about the question's things. What matched: the same action «blow away» (+2); the same property (+1). Against it: a different doer (counts against) (-1). The right option, 4, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t2/) ### Test 3 · ★★★ · right ✓ {#t3} A child has a mild fever with a cold. Why do some doctors say a small fever is not always bad? - **1.** It makes the child grow faster — score 2 - **2.** It kills the germs by freezing them with cold sweat — no support - **3.** It is one of the body's ways of fighting the germs — **← Mova's choice** · **✓ the right answer** · score 3 - **4.** It means the illness is already gone — no support **Why:** It took the question to ask why something happens (its cause). It chose option 3 with score 3, against 2 for the next best. Its support: lesson 40, line 11: «A fever is one of the ways the body fights germs.», reached through the same lesson line as the sentence the question matched. What matched: the same action «fight» (+2); the same thing acted on «germs» (+2). Against it: a different doer (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t3/) ### Test 4 · ★★★ · right ✓ {#t4} Two children run the same race: one at the seaside, one high in the mountains. Who breathes harder? - **1.** Both exactly the same, wherever they run — no support - **2.** The one at the seaside, where air is heavier — no support - **3.** The one in the mountains, where each breath has less oxygen — **← Mova's choice** · **✓ the right answer** · score 8 - **4.** The one at the seaside, because sea air has no oxygen — no support **Why:** It took the question to ask who or what does it. It chose option 3 with score 8, the only option with support. Its support: lesson 40, line 15: «High on mountains each breath holds less oxygen, so climbers breathe harder.», reached through a sentence linked to the one the question matched. What matched: the same thing acted on «less oxygen» (+3); it fills the role the question asks for (+3); the same doer «high breath» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t4/) ### Test 5 · ★★★ · wrong ✗ {#t5} In a cold room you start to shiver without deciding to. What is your body doing? - **1.** Sending all the blood to the fingers — no support - **2.** Trying to get rid of heat — no support - **3.** Making heat with quick muscle work — **✓ the right answer** · score 7 - **4.** Turning off the heart to save energy — **← Mova's choice** · score 9 **Why:** It took the question to ask what is done. It chose option 4 with score 9, against 7 for the next best. Its support: lesson 28, line 5: «A hedgehog curled up in a pile of leaves in winter may breathe only a few times a minute; it is not just sleeping, its whole body has slowed down to save energ…», reached through the option's own match among the sentences about the question's things. What matched: it fills the role the question asks for (+3); the same action «save» (+2); the same doer «whole body» (+2); the same thing acted on «energy» (+2). The right option, 3, scored 7. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t5/) ### Test 6 · ★★★ · wrong ✗ {#t6} A fireworks rocket bursts far away. You see the flash, then hear the bang. What does this tell you? - **1.** Your ears are slower than your eyes — no support - **2.** Sound only travels at night — no support - **3.** The bang was made a few seconds after the flash — **← Mova's choice** · score 3 - **4.** Light reached you sooner than the sound — **✓ the right answer** · no support **Why:** It took the question to ask what it is done to. It chose option 3 with score 3, the only option with support. Its support: lesson 15, line 5: «In a storm cloud, bits of ice and water crash together and build up electric charge until a giant spark jumps: that is lightning. It heats the air so suddenly…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+4); the same thing acted on «bang» (+2). Against it: a different doer (counts against) (-1); a different action (counts against) (-2). The right option, 4, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t6/) ### Test 7 · ★★★ · wrong ✗ {#t7} A cyclist wears a sweaty T-shirt on a windy hill and feels chilly. Why? - **1.** Sweat turns to ice on the shirt — **← Mova's choice** · no support - **2.** The wind blows heat into the shirt — no support - **3.** The hill is closer to the cold Moon — no support - **4.** Sweat evaporates fast in the wind and takes heat away — **✓ 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](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t7/) ### Test 8 · ★★★ · wrong ✗ {#t8} Which is true? - **1.** Muscles need less oxygen when they work hard — **← Mova's choice** · no support - **2.** The heart slows down whenever we run — no support - **3.** Breathing and heartbeat speed up together to feed busy muscles — **✓ the right answer** · no support - **4.** We breathe faster only because we are scared — no support **Why:** Nothing it remembers matched the question, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t8/) ### Test 9 · ★★★ · right ✓ {#t9} A girl spins on a roundabout and then stands still, but the world seems to keep turning. Why? - **1.** The fluid in her inner ear is still moving — **← Mova's choice** · **✓ the right answer** · score 5 - **2.** The ground is really turning — no support - **3.** Her eyes are still spinning round inside her head — no support - **4.** Her blood is spinning in her heart — no support **Why:** It took the question to ask why something happens (its cause). It chose option 1 with score 5, the only option with support. Its support: lesson 40, line 17: «The inner ear has fluid that tells the brain how the head is moving; after spinning, the fluid keeps moving and you feel dizzy.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «fluid» (+3); the same action «move» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t9/) ### Test 10 · ★★★ · right ✓ {#t10} Why would a long-distance runner who forgets to drink be in danger on a hot day? - **1.** He sweats out water he needs to cool down — **← Mova's choice** · **✓ the right answer** · score 5 - **2.** Sweat is made from fat, not from water at all — no support - **3.** Drinking makes the legs heavier and slower — no support - **4.** The body makes more water whenever it runs — no support **Why:** It took the question to ask which statement is true. It chose option 1 with score 5, the only option with support. Its support: lesson 36, line 4: «More than half of your body is water. We lose water every day in sweat, breath and urine, so we must drink it every day; water carries food in the blood, cools…», reached through the same lesson line as the sentence the question matched. What matched: the same action «cool» (+4); the same doer «water» (+4). Against it: one says «not», the other does not (counts against) (-3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t10/) ### Test 11 · ★★★ · wrong ✗ {#t11} saw lightning, counted 6 before the thunder, how far is it - **1.** Right overhead — **← Mova's choice** · no support - **2.** About six kilometres — no support - **3.** About half a kilometre — no support - **4.** About two kilometres — **✓ 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](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t11/) ### Test 12 · ★★★ · right ✓ {#t12} why's u sweat when u run, makes no sense - **1.** Evaporating sweat takes heat from the skin and cools you — **← Mova's choice** · **✓ the right answer** · score 7 - **2.** Sweat is water the muscles do not want — score 4 - **3.** Sweat heats you so you run faster — no support - **4.** Sweat is the body getting rid of air — score 4 **Why:** It took the question to ask which statement is true. It chose option 1 with score 7, against 4 for the next best. Its support: lesson 40, line 3: «Burning food also makes heat, so you get hot. Sweat cools you because water takes heat from the skin when it evaporates. When you are cold, the opposite happen…», reached through a sentence linked to the one the question matched. What matched: the same action «take» (+3); the same thing acted on «heat» (+2); the same place «skin» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t12/) ### Test 13 · ★★★ · right ✓ {#t13} my sister says shivering means your body's given up on staying warm. true? - **1.** Yes, it is only fear of the cold — no support - **2.** Yes, it means the body has stopped — no support - **3.** No, shivering is muscles working fast to make heat — **← Mova's choice** · **✓ the right answer** · score 6 - **4.** No, shivering makes you colder on purpose to save energy — score 2 **Why:** It took the question to ask which statement is true. It chose option 3 with score 6, against 2 for the next best. Its support: lesson 40, line 3: «Burning food also makes heat, so you get hot. Sweat cools you because water takes heat from the skin when it evaporates. When you are cold, the opposite happen…», reached through the same lesson line as the sentence the question matched. What matched: the same action «make» (+4); the same thing acted on «heat» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t13/) ### Test 14 · ★★★ · right ✓ {#t14} a video said you get dizzy after spinning cos your brain gets tired. right? - **1.** Yes, spinning tires the brain out — no support - **2.** Yes, blood leaves the brain — no support - **3.** No, fluid in the inner ear keeps moving and confuses the brain — **← Mova's choice** · **✓ the right answer** · score 8 - **4.** No, the eyes stop working for a while — no support **Why:** It took the question to ask which statement is true. It chose option 3 with score 8, the only option with support. Its support: lesson 40, line 17: «The inner ear has fluid that tells the brain how the head is moving; after spinning, the fluid keeps moving and you feel dizzy.», reached through the same lesson line as the sentence the question matched. What matched: the same action «move» (+4); the same doer «fluid» (+4). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t14/) ### Exam question 1 · formal language · right ✓ {#e1} Identify the principal reason for which respiration and the heartbeat accelerate during exercise. - **1.** To supply additional oxygen and remove waste — **← Mova's choice** · **✓ the right answer** · no support - **2.** To expel water from the body — no support - **3.** To diminish the need for food — no support - **4.** To reduce the temperature of the muscles while they work — 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](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/e1/) ### Exam question 2 · formal language · right ✓ {#e2} Which of the following statements most accurately characterises shivering? - **1.** The narrowing of the airways in response to cold — no support - **2.** The rapid working of muscles to produce heat — **← Mova's choice** · **✓ the right answer** · score 6 - **3.** The cooling of the body by the evaporation of sweat — no support - **4.** A sign that the body has become excessively hot — 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 3: «Burning food also makes heat, so you get hot. Sweat cools you because water takes heat from the skin when it evaporates. When you are cold, the opposite happen…», reached through the same lesson line as the sentence the question matched. What matched: the same action «make» (+4); the same thing acted on «heat» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/e2/) ### Exam question 3 · formal language · wrong ✗ {#e3} It is given that thunder is heard ten seconds after lightning is seen. Ascertain the approximate distance of the storm in miles. - **1.** Fifty miles — **← Mova's choice** · no support - **2.** Ten miles — no support - **3.** Two miles — **✓ the right answer** · no support - **4.** Five miles — 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](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/e3/) ### Exam question 4 · formal language · right ✓ {#e4} Identify the principal reason for which dizziness is felt after spinning. - **1.** The eyes have been damaged by light — no support - **2.** The fluid of the inner ear continues to move — **← Mova's choice** · **✓ the right answer** · score 8 - **3.** The muscles of the legs are fatigued — no support - **4.** The blood has ceased to flow to the head while turning — no support **Why:** It took the question to ask which statement is true. It chose option 2 with score 8, the only option with support. Its support: lesson 40, line 17: «The inner ear has fluid that tells the brain how the head is moving; after spinning, the fluid keeps moving and you feel dizzy.», reached through the same lesson line as the sentence the question matched. What matched: the same action «move» (+4); the same doer «fluid» (+4). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/e4/) - ← previous: [39. First aid and safety](https://md.mova.elamur.ai/free/en/school-run/world/39-first-aid-and-safety/) - next →: [41. Maps, plans and the compass](https://md.mova.elamur.ai/free/en/school-run/world/41-maps-and-compass/) - ↑ back to [World](https://md.mova.elamur.ai/free/en/school-run/world/)