Test 10 · ★ · Thunder, sirens and how fast sound travels

Which is true about sound and light?

Mova's choice: option 1 · The right answer: option 2 · wrong ✗ · What happens: be

This is test 10 · ★ of lesson 18 «Thunder, sirens and how fast sound travels» of the physics course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.

The question

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Which	which	PRON	PronType=Rel	3 true	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 true	cop
3	true	true	ADJ	Degree=Pos	root	root
4	about	about	ADP	_	5 sound	case
5	sound	sound	NOUN	Number=Sing	3 true	obl
6	and	and	CCONJ	_	7 light	cc
7	light	light	NOUN	Number=Sing	5 sound	conj
8	?	?	PUNCT	_	3 true	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present						about sound and light; true property	tree rules

One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

The options

Option 1 · ← Mova's choice

They travel at exactly the same speed through the air

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	They	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	2 travel	nsubj
2	travel	travel	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	at	at	ADP	_	7 speed	case
4	exactly	exactly	ADV	_	7 speed	advmod
5	the	the	DET	Definite=Def PronType=Art	7 speed	det
6	same	same	ADJ	Degree=Pos	7 speed	amod
7	speed	speed	NOUN	Number=Sing	2 travel	obl
8	through	through	ADP	_	10 air	case
9	the	the	DET	Definite=Def PronType=Art	10 air	det
10	air	air	NOUN	Number=Sing	2 travel	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	travel	present	They			the same speed		through the air	vn run-51.3.2-1 «NP V PP.location»: agent=Theme at speed=Trajectory

Option 2 · ✓ the right answer

Light is about a million times faster than sound

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Light	light	NOUN	Number=Sing	2 is	nsubj
2	is	be	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	about	about	ADV	_	5 million	advmod
4	a	a	DET	Definite=Ind PronType=Art	5 million	det
5	million	million	NUM	NumForm=Word NumType=Card	6 times	nummod
6	times	time	NOUN	Number=Plur	7 faster	obl:unmarked
7	faster	fast	ADV	Degree=Cmp	2 is	advmod
8	than	than	ADP	_	9 sound	case
9	sound	sound	NOUN	Number=Sing	7 faster	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	be about	present	Light					fast property	vn exist-47.1 «NP V»: agent=Theme

Option 3

Sound is a kind of light

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Sound	sound	NOUN	Number=Sing	4 kind	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 kind	cop
3	a	a	DET	Definite=Ind PronType=Art	4 kind	det
4	kind	kind	NOUN	Number=Sing	root	root
5	of	of	ADP	_	6 light	case
6	light	light	NOUN	Number=Sing	4 kind	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	Sound	a kind				of light	tree rules

Option 4

Sound is faster than light

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Sound	sound	NOUN	Number=Sing	3 faster	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 faster	cop
3	faster	fast	ADJ	Degree=Cmp	root	root
4	than	than	ADP	_	5 light	case
5	light	light	NOUN	Number=Sing	3 faster	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Sound					than light; fast property	tree rules

Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/physics/18-thunder-sirens-and-how-fast-sound-travels/t10/