---
title: The same whisper is heard on the far side of a round gallery but not… — Thunder, sirens and how fast sound tra… · tree and pragmatics
description: The same whisper is heard on the far side of a round gallery but not across a square hall. Why? Test 9 · ★ of lesson 18 «Thunder, sirens and how fast sound travels» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choi
---

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# Test 9 · ★ · Thunder, sirens and how fast sound travels

<!-- .ven lang=en -->
The same whisper is heard on the far side of a round gallery but not across a square hall. Why?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** hear · **To what, where:** same whisper, far side

<!-- .vabout -->
This is test 9 · ★ 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](https://md.mova.elamur.ai/free/en/school-run/physics/18-thunder-sirens-and-how-fast-sound-travels/#t9).

## The question {#question}

<!-- .note -->
*Sentence 1:* The same whisper is heard on the far side of a round gallery but not across a square hall.

```conllu
# sent_id = question:physics:18-thunder-sirens-and-how-fast-sound-travels:t9:1
# text = The same whisper is heard on the far side of a round gallery but not across a square hall.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	same	same	ADJ	JJ	Degree=Pos	3	amod	_	_
3	whisper	whisper	NOUN	NN	Number=Sing	5	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux:pass	_	_
5	heard	hear	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	on	on	ADP	IN	_	9	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	far	far	ADJ	JJ	Degree=Pos	9	amod	_	_
9	side	side	NOUN	NN	Number=Sing	5	obl	_	_
10	of	of	ADP	IN	_	13	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	round	round	ADJ	JJ	Degree=Pos	13	amod	_	_
13	gallery	gallery	NOUN	NN	Number=Sing	9	nmod	_	_
14	but	but	CCONJ	CC	_	19	cc	_	_
15	not	not	PART	RB	Polarity=Neg	19	advmod	_	_
16	across	across	ADP	IN	_	19	case	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
18	square	square	NOUN	NN	Number=Sing	19	compound	_	_
19	hall	hall	NOUN	NN	Number=Sing	13	conj	_	SpaceAfter=No
20	.	.	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hear** | present · passive |  | the same whisper |  | the far side of a round gallery but a square hall |  |  | vn see-30.1-1-1 «NP V S»: subject=Stimulus |

<!-- .note -->
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.

<!-- .note -->
*Sentence 2:* Why?

```conllu
# sent_id = question:physics:18-thunder-sirens-and-how-fast-sound-travels:t9:2
# text = Why?
1	Why	why	ADV	WRB	PronType=Int	0	root	_	SpaceAfter=No
2	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Whispers travel faster in round rooms

```conllu
# sent_id = question:physics:18-thunder-sirens-and-how-fast-sound-travels:t9:o1:1
# text = Whispers travel faster in round rooms
1	Whispers	whisper	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	travel	travel	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	faster	fast	ADV	RBR	Degree=Cmp	2	advmod	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	round	round	ADJ	JJ	Degree=Pos	6	amod	_	_
6	rooms	room	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **travel** | present | Whispers |  |  | round rooms |  | fast *property* | vn run-51.3.2-1 «NP V PP.location»: agent=Theme in room=Trajectory |

### Option 2 {#o2}

<!-- .ven lang=en -->
Round rooms make every sound louder by a kind of magic

```conllu
# sent_id = question:physics:18-thunder-sirens-and-how-fast-sound-travels:t9:o2:1
# text = Round rooms make every sound louder by a kind of magic
1	Round	round	ADJ	JJ	Degree=Pos	2	amod	_	_
2	rooms	room	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	every	every	DET	DT	PronType=Tot	5	det	_	_
5	sound	sound	NOUN	NN	Number=Sing	3	obj	_	_
6	louder	loud	ADJ	JJR	Degree=Cmp	3	xcomp	_	_
7	by	by	ADP	IN	_	9	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	kind	kind	NOUN	NN	Number=Sing	3	obl	_	_
10	of	of	ADP	IN	_	11	case	_	_
11	magic	magic	NOUN	NN	Number=Sing	9	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Round rooms | every sound |  |  |  | by a kind of magic; loud *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset sound=Product |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
The curved wall guides the sound round its edge

```conllu
# sent_id = question:physics:18-thunder-sirens-and-how-fast-sound-travels:t9:o3:1
# text = The curved wall guides the sound round its edge
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	curved	curve	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	amod	_	_
3	wall	wall	NOUN	NN	Number=Sing	4	nsubj	_	_
4	guides	guide	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	sound	sound	NOUN	NN	Number=Sing	4	obj	_	_
7	round	round	ADP	IN	_	9	case	_	_
8	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	edge	edge	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **curve** | participle |  |  |  |  |  |  | vn knead-26.5 «NP.material V PP.product»: agent=Material |
| 2 | **guide** | present | the curved wall | the sound |  | wall's edge |  |  | vn accompany-51.7 «NP V NP PP.destination»: agent=Agent sound=Theme round edge=Destination |

### Option 4 {#o4}

<!-- .ven lang=en -->
Square halls block all whispers

```conllu
# sent_id = question:physics:18-thunder-sirens-and-how-fast-sound-travels:t9:o4:1
# text = Square halls block all whispers
1	Square	square	ADJ	JJ	Degree=Pos	2	amod	_	_
2	halls	hall	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	block	block	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	all	all	DET	DT	PronType=Tot	5	det	_	_
5	whispers	whisper	NOUN	NNS	Number=Plur	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **block** | present | Square halls | all whispers |  |  |  |  | vn forbid-64.4-1 «NP V NP»: agent=Causer whisper=Theme |

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**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.

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