Directions, latitude and longitude
Tests: 5 of 11 right · Exam: 3 of 4 right · Kind: ★ · Understood: 4 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 2 of the geography 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 ✗
Why is there a natural zero for latitude but not for longitude?
- 1. Greenwich is the oldest city with an observatory — ← Mova's choice · no support
- 2. The equator is hotter than other places — no support
- 3. The equator lies halfway between the poles, but every meridian is alike — ✓ the right answer · no support
- 4. Longitude lines are curved and latitude lines are straight, so they cannot start at zero — 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 2 · ★ · right ✓
Before 1884 the French counted longitude from Paris. What problem did that cause?
- 1. Maps from different countries gave different numbers for one place — ← Mova's choice · ✓ the right answer · no support
- 2. The Sun seemed to rise in the west for anyone sailing to France — no support
- 3. Latitude stopped working on French maps and charts — no support
- 4. Ships could not sail to France — 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 · ★ · right ✓
Two towns are 2 degrees of latitude apart on the same meridian. Roughly how far apart are they?
- 1. About 222 km — ← Mova's choice · ✓ the right answer · no support
- 2. About 22 km — no support
- 3. About 2,220 km — no support
- 4. About 111 km — 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 ✗
Your ship's clock, set to London time, reads 3 p.m. when the Sun is highest where you are. How far west of London are you?
- 1. 90 degrees — ← Mova's choice · no support
- 2. 15 degrees — no support
- 3. 45 degrees — ✓ the right answer · no support
- 4. 3 degrees — 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 ✗
Where on Earth would the Pole Star sit right on the horizon?
- 1. In London, all year round — ← Mova's choice · no support
- 2. At the North Pole — no support
- 3. At the Arctic Circle — no support
- 4. At the equator — ✓ 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 6 · ★ · right ✓
Bro says the Arctic Circle is at 66.6 cos it's just a random number. True?
- 1. No, it is 90 minus the tilt of 23.4 degrees — ← Mova's choice · ✓ the right answer · no support
- 2. Yes, it was picked by a king of Norway long ago — no support
- 3. No, it is exactly twice the tropic line — no support
- 4. Yes, it changes every year by a lot — 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 7 · ★ · wrong ✗
Why would an old map's compass instructions slowly become wrong?
- 1. The paper shrinks over time — ← Mova's choice · no support
- 2. Magnetic north keeps moving — ✓ the right answer · no support
- 3. Compasses wear out with use — no support
- 4. The Earth's poles swap every year — 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 ✗
If the Earth spun the other way, where would the Sun rise?
- 1. In the west — ✓ the right answer · score 8
- 2. Still in the east — ← Mova's choice · score 18
- 3. It would not rise at all — score 2
- 4. In the north — score 8
Why: It took the question to ask where. It chose option 2 with score 18, against 8 for the next best. Its support: lesson 2, line 16: «The Sun rises in the east and sets in the west everywhere on Earth, because the Earth spins from west to east.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same action «rise» (+4); the same doer «sun» (+4); the same place «east» (+4). The right option, 1, scored 8. · the question and its options parsed, with trees and pragmatics
Test 9 · ★ · right ✓
You walk around the world near the North Pole. Why do you cross every longitude in a few steps?
- 1. The ice moves you along — no support
- 2. Degrees are bigger near the poles — no support
- 3. All the meridians meet at the pole — ← Mova's choice · ✓ the right answer · score 3
- 4. Longitude does not exist in the Arctic — no support
Why: It took the question to ask why something happens (its cause). It chose option 3 with score 3, the only option with support. Its support: lesson 2, line 11: «Lines of longitude, called meridians, run from pole to pole and all meet at the poles, so one degree of longitude is about 111 km wide at the equator but shrin…», reached through the same lesson line as the sentence the question matched. What matched: the same action «meet» (+2); the same place «poles» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 10 · ★ · wrong ✗
In EU5 the northern locations are cold and poor. What real thing does the game copy there?
- 1. Higher latitudes get weaker sunlight — ✓ the right answer · no support
- 2. The game is just guessing about the weather — no support
- 3. The north is further from the Sun in summer — ← Mova's choice · score 10
- 4. Northern lands are higher above the sea — no support
Why: It took the question to ask who or what does it. It chose option 3 with score 10, the only option with support. Its support: lesson 2, line 17: «In EU5 the far north has cold, harsh locations and the tropics hot ones, which follows latitude quite well (the further from the equator, the lower and weaker…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same doer «far north» (+4). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 11 · ★ · right ✓
How could Portuguese captains know how far south they had sailed along Africa?
- 1. From the height of the Pole Star, sinking lower each night — ← Mova's choice · ✓ the right answer · no support
- 2. From the colour of the sea water — no support
- 3. By counting the days only — no support
- 4. By the length of the coast already drawn on their charts at home — 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 ✓
Identify the principal reason for which the determination of longitude at sea remained impracticable prior to the eighteenth century.
- 1. No sufficiently accurate marine timekeeper existed — ← Mova's choice · ✓ the right answer · no support
- 2. The Pole Star was not visible from ships — no support
- 3. The magnetic compass had not been invented — no support
- 4. Latitude had not yet been defined — 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 ✗
Ascertain the approximate distance corresponding to a single degree of latitude upon the Earth's surface.
- 1. Eleven kilometres — ← Mova's choice · no support
- 2. One thousand kilometres — no support
- 3. One hundred and eleven kilometres — ✓ the right answer · no support
- 4. Sixty-nine kilometres — 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 ✓
Which of the following statements is consistent with the established facts concerning the prime meridian?
- 1. It passes through Greenwich and was so agreed in 1884 — ← Mova's choice · ✓ the right answer · score 4
- 2. It coincides with the equator — no support
- 3. It passes through Paris and was so agreed in 1884 — score 4
- 4. It passes through Washington — no support
Why: It took the question to ask which statement is true. It chose option 1 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 10: «Longitude measures how far east or west a place is from the prime meridian, which runs through Greenwich in London and was agreed at a conference in Washington…», reached through the option's own match among the sentences about the question's things. What matched: the same action «agree» (+2); the same doer «prime meridian» (+2). · the question and its options parsed, with trees and pragmatics
Exam question 4 · formal language · right ✓
It is given that an observer in the northern hemisphere measures the Pole Star at an elevation of fifty degrees. Determine the observer's approximate latitude.
- 1. Fifty degrees north — ← Mova's choice · ✓ the right answer · no support
- 2. Forty degrees north — no support
- 3. Fifty degrees south — no support
- 4. Ninety degrees north — 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/geography/2-directions-latitude-and-longitude/