Telescopes and light
Tests: 8 of 11 right · Exam: 2 of 4 right · Kind: plain · Understood: 7 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 27 of the space 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 ✓
Noah thinks the main point of a telescope is to make stars look bigger. What is closer to the truth?
- 1. Its main job is to collect more light — ← Mova's choice · ✓ the right answer · no support
- 2. It mainly changes their colour so we can tell them apart — no support
- 3. It mainly makes the stars hotter so they glow — no support
- 4. It mainly brings the stars much nearer to us — 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 · right ✓
Two telescopes are the same except one mirror is much wider. Which shows fainter stars?
- 1. The one with the wider mirror — ← Mova's choice · ✓ the right answer · score 7
- 2. The one with the narrower mirror — score 7
- 3. Both exactly the same — score 2
- 4. Neither shows faint stars — no support
Why: It took the question to ask who or what does it. It chose option 1 with score 7, tied with another option at 7 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 23, line 6: «The Milky Way is our galaxy, a huge disc of a few hundred billion stars, and the Sun is just one of them.», 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 doer «sun» (+2); the same thing acted on «one» (+2). · the question and its options parsed, with trees and pragmatics
Test 3 · right ✓
hey can i look at the sun with my dad's binoculars quick?
- 1. No, never: it can blind you instantly — ← Mova's choice · ✓ the right answer · no support
- 2. Yes, if it is only for a second or two — no support
- 3. Yes, at sunset it is always safe to look — no support
- 4. Yes, as long as you wear dark sunglasses — 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 did Hubble get blurry pictures at first, and how was it fixed?
- 1. Its mirror was wrongly shaped, and astronauts fixed it in 1993 — ← Mova's choice · ✓ the right answer · score 5
- 2. It was never fixed — no support
- 3. Its lens was dirty, so it was wiped clean by a robot arm sent from Earth — no support
- 4. It was too far away, so it was moved closer — 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 27, line 11: «The Hubble Space Telescope, launched in 1990, orbits above the air, but its mirror was wrongly shaped and astronauts fixed it in 1993.», reached through a sentence linked to the one the question matched. What matched: the same action «shape» (+2); the same thing acted on «mirror» (+2); the same property (+1). · the question and its options parsed, with trees and pragmatics
Test 5 · wrong ✗
In a cartoon, a scientist in a London back garden takes an X-ray picture of a star with a backyard telescope. What is wrong?
- 1. Nothing, that works fine as long as the backyard telescope is big enough — ← Mova's choice · no support
- 2. Stars give out no light at all — no support
- 3. X-rays from space are blocked by the air, so it must be in space — ✓ the right answer · no support
- 4. X-rays are only made in hospitals — 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 ✓
Which is true about the Lovell Telescope?
- 1. It is a space telescope launched in 2021 to look at the first galaxies — score 5
- 2. It is Galileo's homemade telescope — no support
- 3. It is a small lens telescope in Hawaii — no support
- 4. It is a radio dish in Cheshire, 76 metres wide — ← Mova's choice · ✓ the right answer · score 9
Why: It took the question to ask which statement is true. It chose option 4 with score 9, against 5 for the next best. Its support: lesson 27, line 14: «Radio telescopes are giant dishes that collect radio waves from space, like the Lovell Telescope at Jodrell Bank in Cheshire, 76 metres wide.», reached through the remembered sentence the question matched. What matched: the same doer «radio telescopes» (+4); the same thing acted on «giant dishes» (+3); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics
Test 7 · wrong ✗
Why does the Atacama Desert in Chile host so many telescopes?
- 1. It is the only place on Earth where stars can be seen — ← Mova's choice · no support
- 2. It is high and very dry, so the sky is clear — ✓ the right answer · no support
- 3. It is the closest place on the Earth to the Moon — no support
- 4. It never gets dark there, so they can work all day — 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 · right ✓
Galileo saw that Venus has phases like the Moon. What does that tell us he used?
- 1. A space telescope — score 3
- 2. A radio dish — no support
- 3. A small homemade telescope — ← Mova's choice · ✓ the right answer · score 4
- 4. The naked eye only — no support
Why: It took the question to ask what it is done to. It chose option 3 with score 4, against 3 for the next best. Its support: lesson 27, line 6: «In 1609-1610 Galileo used a small homemade telescope to discover four moons of Jupiter, mountains on the Moon and the phases of Venus.», 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 «small homemade telescope» (+2); the same property (+1). 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 9 · wrong ✗
James Webb works far from Earth, about 1.5 million km away. Which is closest to that?
- 1. About the height of a plane — ← Mova's choice · no support
- 2. About four times the distance to the Moon — ✓ the right answer · no support
- 3. About the distance to the Sun — no support
- 4. About the distance to Mars at its farthest — 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 10 · right ✓
my teacher said the Rubin Observatory is a telescope on the Moon. true?
- 1. No, it is a radio dish in Australia — no support
- 2. Yes, it orbits Mars — no support
- 3. Yes, it landed on the Moon in 2025 and took photos from there — score 6
- 4. No, it is in Chile and released its first images in 2025 — ← Mova's choice · ✓ the right answer · score 9
Why: It took the question to ask which statement is true. It chose option 4 with score 9, against 6 for the next best. Its support: lesson 27, line 17: «The Vera C. Rubin Observatory in Chile released its first images in 2025.», reached through the remembered sentence the question matched. What matched: the same action «release» (+3); the same thing acted on «first images» (+3); the same place «2025» (+3). · the question and its options parsed, with trees and pragmatics
Test 11 · right ✓
If Earth had no air at all, what could ground telescopes do better?
- 1. Hear sounds from stars — no support
- 2. Nothing would change at all — no support
- 3. See through the Sun — no support
- 4. See sharper and catch X-rays from space — ← 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 27, line 16: «X-ray and gamma-ray telescopes have to work in space, because Earth's atmosphere blocks those rays.», 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 «rays» (+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
Exam question 1 · formal language · wrong ✗
Which of the following statements most accurately characterises the principal function of an astronomical telescope?
- 1. The transmission of signals into space — ← Mova's choice · no support
- 2. The collection of light from faint objects — ✓ the right answer · no support
- 3. The magnification of the heat of stars — no support
- 4. The production of light for observation — 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 reason for which X-ray and gamma-ray telescopes are required to operate in space.
- 1. Such telescopes are too heavy for the ground — ← Mova's choice · no support
- 2. Such rays are produced only near the Moon — no support
- 3. The atmosphere of the Earth blocks such rays — ✓ the right answer · no support
- 4. Such rays are too faint at night — 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 ✓
Identify the discoveries made by Galileo by means of a telescope in 1609-1610.
- 1. Four moons of Jupiter, lunar mountains and the phases of Venus — ← Mova's choice · ✓ the right answer · no support
- 2. The first exoplanet and a black hole — no support
- 3. The planets Uranus and Neptune — no support
- 4. The rings of Saturn and the Andromeda Galaxy — 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 James Webb Space Telescope.
- 1. It was launched in 2021 and has a gold-coated mirror 6.5 metres wide — ← Mova's choice · ✓ the right answer · score 5
- 2. It was launched in 1990 and was later repaired by visiting astronauts in 1993 — score 4
- 3. It is under construction in Chile for 2030 — no support
- 4. It is a radio dish of 76 metres in Cheshire — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 5, against 4 for the next best. Its support: lesson 27, line 12: «The James Webb Space Telescope, launched on Christmas Day 2021, has a gold-coated mirror 6.5 metres wide and works about 1.5 million km from Earth, about four…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «coated mirror» (+2); the same property (+2); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/space/27-telescopes-and-light/