Transport: from horses to planes

Tests: 4 of 13 right · Exam: 3 of 4 right · Kind: ★ · Understood: 9 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 99 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.

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 ✗

A farmer must send 20 tonnes of grain to another continent and is in no hurry. Which transport is best?

1. A horse and cart across the ocean — ← Mova's choice · no support
2. A bicycle with a large basket — no support
3. A ship, because it is cheap for heavy loads — ✓ the right answer · no support
4. A plane, because it is always the cheapest — 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 2 · ★ · wrong ✗

A doctor must get a small box of medicine to another continent by tomorrow. Which transport is best?

1. A steam train — ← Mova's choice · no support
2. A sailing ship — no support
3. A plane — ✓ the right answer · no support
4. A canal boat — 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 ✗

Which list puts these in the order they appeared?

1. Car, sailing ship, aeroplane, steam train — ← Mova's choice · no support
2. Aeroplane, car, steam train, sailing ship — no support
3. Sailing ship, steam train, car, aeroplane — ✓ the right answer · no support
4. Steam train, aeroplane, sailing ship, car — 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 · ★ · wrong ✗

A cart on a muddy road and a wagon on iron rails carry the same load. Why does the wagon need far less pulling?

1. Iron rails push the wagon along by magnetism — no support
2. Rails make the load lighter — no support
3. Mud pulls the cart towards the ground — ← Mova's choice · score 5
4. There is much less friction on smooth rails — ✓ the right answer · 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 99, line 1: «For most of history people travelled on foot, by boat, or with animals. Boats are among the oldest ways to travel, because water carries heavy loads easily. Ho…», reached through the option's own match among the sentences about the question's things. What matched: the same action «pull» (+2); the same thing acted on «carts» (+2); 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

Test 5 · ★ · wrong ✗

What would happen to a sailing ship on a day with no wind at all?

1. It would sink at once — ← Mova's choice · score 3
2. It would hardly move — ✓ the right answer · no support
3. It would move backwards — no support
4. It would go faster than usual — score 2

Why: It took the question to ask which statement is true. It chose option 1 with score 3, against 2 for the next best. Its support: lesson 99, line 2: «Each new kind of transport solved a problem of the one before. Sailing ships used the free power of the wind but stopped when the wind dropped. The steam engin…», reached through the option's own match among the sentences about the question's things. What matched: the same action «drop» (+2); the same doer «wind» (+1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 6 · ★ · right ✓

A paper plane stays up longer than a crumpled ball of the same paper. Why?

1. The plane has a tiny engine inside — no support
2. Its wings push on the air as it moves — ← Mova's choice · ✓ the right answer · score 6
3. The ball has more gravity than the plane — score 3
4. The paper becomes lighter when folded — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 6, against 3 for the next best. Its support: lesson 99, line 4: «On 17 December 1903 the Wright brothers made the first powered, controlled flight in an aeroplane; it lasted 12 seconds. A plane's wings are shaped and tilted…», reached through the same lesson line as the sentence the question matched. What matched: the same action «push» (+3); its «because» matches the remembered cause (+2); the same circumstance (+1). · the question and its options parsed, with trees and pragmatics

Test 7 · ★ · wrong ✗

Which is true?

1. Cars were invented before the wheel — ← Mova's choice · no support
2. Steam engines are powered by the wind — no support
3. The first flight lasted many hours — no support
4. Cars became common after they were made cheaply on assembly lines — ✓ the right answer · 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

Test 8 · ★ · wrong ✗

Before trains, a trip from London to Edinburgh took days by horse-drawn coach. What did railways change most?

1. People stopped travelling between cities — no support
2. Horses were no longer used anywhere at all — ← Mova's choice · score 6
3. The two cities moved closer together — no support
4. Long journeys became much faster and cheaper — ✓ the right answer · no support

Why: It took the question to ask what it is done to. It chose option 2 with score 6, the only option with support. Its support: lesson 99, line 10: «The Stockton and Darlington Railway in England opened in 1825 as the first public railway to use steam engines.», reached through the option's own match among the sentences about the question's things. What matched: the same action «use» (+5); the same doer «stockton railway» (+2). Against it: a different thing acted on (counts against) (-1). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 9 · ★ · wrong ✗

Why did early people often build towns beside rivers and coasts?

1. Rivers kept away every kind of wild, dangerous animal — ← Mova's choice · score 3
2. Boats made travel and trade easier there — ✓ the right answer · no support
3. Roads could not be built inland — no support
4. It never rained beside rivers — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 3, the only option with support. Its support: lesson 49, line 14: «Rivers always flow from higher land to lower land, so a river flows away from the mountains.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «river» (+2); the same property (+2). Against it: a different action (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 10 · ★ · right ✓

why's most stuff shipped by sea not by plane

1. Ships are always faster than planes — score 5
2. Ships move huge loads cheaply — ← Mova's choice · ✓ the right answer · score 6
3. Planes are not allowed to carry goods — no support
4. The sea is shorter than the sky — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 6, against 5 for the next best. Its support: lesson 99, line 5: «Faster is not always better. Planes are fast but use a lot of fuel; ships are slow but can carry huge loads cheaply, so most of the world's goods still travel…», reached through a sentence linked to the one the question matched. What matched: the same thing acted on «huge loads» (+3); the same doer «ships» (+2); the same property (+2). Against it: a different action (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 11 · ★ · wrong ✗

why'd trains go on iron rails, not just roads

1. Roads were too narrow for wheels — ← Mova's choice · no support
2. Rails stop the trains from getting lost — no support
3. Iron rails give the train extra power from the ground — no support
4. Wheels on smooth rails have much less friction — ✓ 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 12 · ★ · right ✓

Ava says the Wright brothers first flew in 1950. true?

1. No, it was on 17 December 1903 — ← Mova's choice · ✓ the right answer · no support
2. Yes, but only with a jet engine — no support
3. No, they flew in 1825 — no support
4. Yes, planes were invented after the war — 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 ✓

my mate reckons Henry Ford invented the car. right?

1. No, his assembly line made cars cheap; Benz built one of the first cars — ← Mova's choice · ✓ the right answer · score 10
2. No, the Wright brothers invented the car — no support
3. Yes, and also the first aeroplane — no support
4. Yes, he built the very first car in 1913 — score 8

Why: It took the question to ask which statement is true. It chose option 1 with score 10, against 8 for the next best. Its support: lesson 99, line 13: «Henry Ford's moving assembly line, started in 1913, made cars cheap enough for many families.», reached through the remembered sentence the question matched. What matched: the same action «make» (+4); the same property (+3); the same thing acted on «cars» (+2); the same doer «moving assembly line» (+1). · 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 a steam engine?

1. Fuel boils water, and the steam pushes the engine's parts — ← Mova's choice · ✓ the right answer · score 8
2. Petrol explodes inside a cylinder — no support
3. The wind pushes sails attached to the engine — score 4
4. Electricity from a battery turns a motor — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 8, against 4 for the next best. Its support: lesson 99, line 9: «A steam engine burns fuel to boil water, and the steam pushes the engine's parts.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «water» (+5); the same action «boil» (+3). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Identify the persons who made the first powered, controlled aeroplane flight, together with the year thereof.

1. Henry Ford, in 1913 — ← Mova's choice · no support
2. The Wright brothers, in 1825 — no support
3. Karl Benz, in 1886 — no support
4. The Wright brothers, in 1903 — ✓ 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 3 · formal language · right ✓

Ascertain the principal reason for which wheels upon iron rails move more easily than upon a rough road.

1. Smooth iron rails give much less friction — ← Mova's choice · ✓ the right answer · no support
2. Rough roads have no friction whatsoever — no support
3. Iron rails pull the wheels by magnetism — no support
4. Iron rails reduce the weight of the train — 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 · right ✓

Select the response that is consistent with the established facts concerning the carriage of the world's goods.

1. Most are carried by bicycle — no support
2. Most are carried by horse and cart — no support
3. Most are carried by ship, which moves huge loads cheaply — ← Mova's choice · ✓ the right answer · score 2
4. Most are carried by aeroplane, which is cheapest — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 2, the only option with support. Its support: lesson 52, line 10: «A ramp lets you lift a load with less force by moving it along a longer path.», reached through the option's own match among the sentences about the question's things. What matched: the same action «move» (+2). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/99-transport-horses-to-planes/