Heat moves: hot to cold
Tests: 5 of 10 right · Exam: 1 of 4 right · Kind: plain · Understood: 8 of 14 · Run: 2026-10-18, commit f3c23ea72
Lesson 23 of the physics 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 ✓
My little bro says the ice gives "cold" to your hand. How would you put him right?
- 1. Ice gives out cold rays — no support
- 2. Your hand gives heat to the ice; cold is not a thing that moves — ← Mova's choice · ✓ the right answer · score 7
- 3. Hand and ice swap their colours — no support
- 4. He's right, cold flows into your hand — no support
Why: It took the question to ask what something is like. It chose option 2 with score 7, the only option with support. Its support: lesson 23, line 2: «That is why your hot cocoa cools on the table and an ice cube melts in your warm hand, and why your hand feels cold: it is losing its heat to the ice.», reached through the remembered sentence the question matched. What matched: the same receiver (+5); the same doer «hand» (+3); the same thing acted on «heat» (+3). Against it: a different action (counts against) (-4). · the question and its options parsed, with trees and pragmatics
Test 2 · wrong ✗
On a scorching day, which feels hotter to sit on: a metal bench or a wooden one?
- 1. Both feel exactly the same — ← Mova's choice · no support
- 2. The wooden one, because wood stores heat — no support
- 3. The metal one, because it passes heat into you faster — ✓ the right answer · no support
- 4. Neither, sun does not heat benches — 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 3 · wrong ✗
What would happen to a cup of hot tea left in a warm room for a very long time?
- 1. It would get colder than the room — ← Mova's choice · no support
- 2. It would get hotter by itself — no support
- 3. It would stay hot for ever — no support
- 4. It would cool until it was the same temperature as the room — ✓ 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 4 · right ✓
Why do we put a radiator low down under a window rather than near the ceiling?
- 1. Heat only travels downwards — no support
- 2. Warm air rises and sets the whole room's air circling — ← Mova's choice · ✓ the right answer · score 4
- 3. It does not matter at all where in the room it is fixed up — no support
- 4. Radiators are too heavy for walls — no support
Why: It took the question to ask why something happens (its cause). It chose option 2 with score 4, the only option with support. Its support: lesson 23, line 3: «Heat travels in three ways: along solid things, as in a metal spoon that gets hot at the handle; carried by moving air or water, as warm air rises from a radia…», reached through the option's own match among the sentences about the question's things. What matched: the same action «rise» (+3); the same doer «warm air» (+1). · the question and its options parsed, with trees and pragmatics
Test 5 · right ✓
In a cartoon, a character holds a mug of tea and steam curls into a heart. What is the steam doing for the tea?
- 1. Making the tea stronger and darker — no support
- 2. Keeping it warm by staying close to it — no support
- 3. Carrying heat away and cooling it — ← Mova's choice · ✓ the right answer · score 17
- 4. Slowly turning the tea into hot cocoa — no support
Why: It took the question to ask what it is done to. It chose option 3 with score 17, the only option with support. Its support: lesson 23, line 12: «Blowing on soup sweeps away the warm, steamy air above it, so more steam escapes and carries heat away.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same thing acted on «heat» (+4); the same action «carry away» (+3); the same doer «more steam» (+3). · the question and its options parsed, with trees and pragmatics
Test 6 · wrong ✗
shut up and pass me a metal spoon for the soup, it won't get hot. Is he right?
- 1. Yes, only plastic spoons ever get hot in soup — ← Mova's choice · score 3
- 2. Yes, metal never gets hot, however long it sits — no support
- 3. No, but only spoons made of real silver get hot — score 3
- 4. No, a metal spoon gets hot at the handle — ✓ the right answer · score 3
Why: It took the question to ask which statement is true. It chose option 1 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 23, line 3: «Heat travels in three ways: along solid things, as in a metal spoon that gets hot at the handle; carried by moving air or water, as warm air rises from a radia…», reached through the remembered sentence the question matched. What matched: the same light verb (be, have, do, get, go) (+2); the same doer «metal spoon» (+1). The right option, 4, scored 3. · the question and its options parsed, with trees and pragmatics
Test 7 · wrong ✗
You feel your forehead and think you have a fever. What is the honest judge?
- 1. How hot your face looks in the mirror — no support
- 2. A thermometer — ✓ the right answer · no support
- 3. How tired you feel — no support
- 4. How hot your hand feels — ← Mova's choice · score 6
Why: It took the question to ask what it is done to. It chose option 4 with score 6, the only option with support. Its support: lesson 23, line 2: «That is why your hot cocoa cools on the table and an ice cube melts in your warm hand, and why your hand feels cold: it is losing its heat to the ice.», reached through the remembered sentence the question matched. What matched: the same action «feel» (+3); the same doer «hand» (+3). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 8 · right ✓
Why does the Sun warm you even though space between us is empty?
- 1. Space is full of warm air all the way here — no support
- 2. Heat only comes up from the ground below — no support
- 3. Heat travels as rays that need no air — ← Mova's choice · ✓ the right answer · score 5
- 4. The Moon catches the heat and passes it on — no support
Why: It took the question to ask why something happens (its cause). It chose option 3 with score 5, the only option with support. Its support: lesson 14, line 3: «When you drink through a straw you do not really pull the juice up; you take some air out of the straw, and the air pressing on the juice in the cup pushes it…», reached through the option's own match among the sentences about the question's things. What matched: the same action «take» (+3); the same thing acted on «air» (+2). · the question and its options parsed, with trees and pragmatics
Test 9 · right ✓
Which is true about how you feel hot and cold?
- 1. Your skin feels the colour of things — no support
- 2. Your skin feels how fast heat leaves it, not the true temperature — ← Mova's choice · ✓ the right answer · score 6
- 3. Your skin is a perfect thermometer — no support
- 4. Your skin only feels cold, never heat — score 2
Why: It took the question to ask which statement is true. It chose option 2 with score 6, against 2 for the next best. Its support: lesson 23, line 4: «Your skin does not measure temperature; it feels how fast heat leaves it, so a metal bench feels colder than a wooden one on the same frosty morning, though bo…», reached through a sentence linked to the one the question matched. What matched: the same action «leave» (+4); the same doer «fast heat» (+3). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 10 · wrong ✗
Why does a picnic cool box with ice packs keep ice cream from melting quickly?
- 1. It makes the ice cream heavier and harder to melt — ← Mova's choice · score 4
- 2. It keeps heat from reaching the ice cream — ✓ the right answer · no support
- 3. It turns heat into light — score 0
- 4. It stops the Sun from rising — no support
Why: It took the question to ask why something happens (its cause). It chose option 1 with score 4, against 0 for the next best. Its support: lesson 23, line 15: «Melting needs heat, which is why ice cream on a summer table melts and a cool box with ice packs slows it down.», reached through the option's own match among the sentences about the question's things. What matched: the same action «melt» (+3); the same doer «ice cream» (+1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · wrong ✗
Identify the direction in which heat is invariably transferred between two bodies in contact.
- 1. From the body of lower temperature to that of higher temperature — ← Mova's choice · no support
- 2. From the larger body to the smaller — no support
- 3. From the body of higher temperature to that of lower temperature — ✓ the right answer · no support
- 4. In no consistent direction — 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 ✗
Which of the following statements most accurately characterises the sensation of coldness upon touching a metal object at ambient temperature?
- 1. The metal is necessarily of lower temperature than its surroundings — ← Mova's choice · no support
- 2. The sensation is wholly imaginary — no support
- 3. Heat is withdrawn from the hand more rapidly by the metal — ✓ the right answer · no support
- 4. The metal emits cold into the hand — 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 · right ✓
It is given that the space between the Sun and the Earth is very nearly empty. Ascertain the mode by which solar heat reaches the Earth.
- 1. By radiation — ← Mova's choice · ✓ the right answer · no support
- 2. By the circulation of air — no support
- 3. By conduction through matter — no support
- 4. By the motion of water — 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 ✗
State the principle whereby a liquid-in-glass thermometer indicates temperature.
- 1. The liquid alters its colour with temperature — ← Mova's choice · no support
- 2. The glass emits light in proportion to the heat — no support
- 3. The liquid expands upon warming and contracts upon cooling — ✓ the right answer · no support
- 4. The liquid evaporates at a fixed rate — 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/physics/23-heat-moves-hot-to-cold/