---
title: Your compass swings the wrong way while you hold a steel torch right… — Olympiad: sound, light, heat, electric… · tree and pragmatics
description: Your compass swings the wrong way while you hold a steel torch right next to it. Why? Test 8 · ★★★ of lesson 43 «Olympiad: sound, light, heat, electricity and magnets ★★★» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova
---

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# Test 8 · ★★★ · Olympiad: sound, light, heat, electricity and magnets ★★★

<!-- .ven lang=en -->
Your compass swings the wrong way while you hold a steel torch right next to it. Why?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** compass, you · **What happens:** swing, hold · **To what, where:** wrong way, steel torch

<!-- .vabout -->
This is test 8 · ★★★ of lesson 43 «Olympiad: sound, light, heat, electricity and magnets ★★★» 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/43-olympiad-sound-light-heat-and-magnets/#t8).

## The question {#question}

<!-- .note -->
*Sentence 1:* Your compass swings the wrong way while you hold a steel torch right next to it.

```conllu
# sent_id = question:physics:43-olympiad-sound-light-heat-and-magnets:t8:1
# text = Your compass swings the wrong way while you hold a steel torch right next to it.
1	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	compass	compass	NOUN	NN	Number=Sing	3	nsubj	_	_
3	swings	swing	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	wrong	wrong	ADJ	JJ	Degree=Pos	6	amod	_	_
6	way	way	NOUN	NN	Number=Sing	3	obj	_	_
7	while	while	SCONJ	IN	_	9	mark	_	_
8	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	9	nsubj	_	_
9	hold	hold	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	3	advcl	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
11	steel	steel	NOUN	NN	Number=Sing	12	compound	_	_
12	torch	torch	NOUN	NN	Number=Sing	9	obj	_	_
13	right	right	ADV	RB	_	14	advmod	_	_
14	next	next	ADV	RB	_	9	advmod	_	_
15	to	to	ADP	IN	_	16	case	_	_
16	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **swing** | present | Your compass | the wrong way |  |  |  |  | vn roll-51.3.1 «NP V ADJ.result»: agent=Theme way=Result |
| 2 | **hold** | present | you | a steel torch |  |  |  | next *property* | vn keep-15.2 «NP V NP»: agent=Agent torch=Theme |

<!-- .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:43-olympiad-sound-light-heat-and-magnets:t8:2
# 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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
The steel pulls the needle harder than the Earth does

```conllu
# sent_id = question:physics:43-olympiad-sound-light-heat-and-magnets:t8:o1:1
# text = The steel pulls the needle harder than the Earth does
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	steel	steel	NOUN	NN	Number=Sing	3	nsubj	_	_
3	pulls	pull	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	needle	needle	NOUN	NN	Number=Sing	3	obj	_	_
6	harder	hard	ADJ	JJR	Degree=Cmp	3	xcomp	_	_
7	than	than	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	Earth	Earth	PROPN	NNP	Number=Sing	6	obl	_	_
10	does	do	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pull** | present | the steel | the needle |  |  |  | hard *property* | vn push-12-1 «NP V NP»: agent=Agent needle=Theme |
| 2 | **do** | present | the steel *not said here* |  |  |  |  |  | vn act-114-1 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
The batteries in the torch make the north pole move about

```conllu
# sent_id = question:physics:43-olympiad-sound-light-heat-and-magnets:t8:o2:1
# text = The batteries in the torch make the north pole move about
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	batteries	battery	NOUN	NNS	Number=Plur	6	nsubj	_	_
3	in	in	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	torch	torch	NOUN	NN	Number=Sing	2	nmod	_	_
6	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	north	north	NOUN	NN	Number=Sing	9	compound	_	_
9	pole	pole	NOUN	NN	Number=Sing	10	nsubj	_	_
10	move	move	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	ccomp	_	_
11	about	about	ADV	RB	_	10	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | the batteries in the torch |  |  |  |  |  | tree rules |
| 2 | **move about** | present | the north pole |  |  |  |  | about *property* | vn roll-51.3.1 «NP.theme V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
Compasses only work in bright daylight

```conllu
# sent_id = question:physics:43-olympiad-sound-light-heat-and-magnets:t8:o3:1
# text = Compasses only work in bright daylight
1	Compasses	compass	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	only	only	ADV	RB	_	3	advmod	_	_
3	work	work	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	bright	bright	ADJ	JJ	Degree=Pos	6	amod	_	_
6	daylight	daylight	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **work** | present | Compasses |  |  |  |  | in bright daylight | vn employment-95.3 «NP V PP.theme»: agent=Agent in daylight=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
The torch beam pushes the needle round

```conllu
# sent_id = question:physics:43-olympiad-sound-light-heat-and-magnets:t8:o4:1
# text = The torch beam pushes the needle round
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	torch	torch	NOUN	NN	Number=Sing	3	compound	_	_
3	beam	beam	NOUN	NN	Number=Sing	4	nsubj	_	_
4	pushes	push	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	needle	needle	NOUN	NN	Number=Sing	4	obj	_	_
7	round	round	ADV	RB	_	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **push** | present | the torch beam | the needle |  |  |  | round *property* | vn carry-11.4-1-1 «NP V NP»: agent=Agent needle=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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- ↑ back to [Olympiad: sound, light, heat, electricity and magnets ★★★](https://md.mova.elamur.ai/free/en/corpora/questions/physics/43-olympiad-sound-light-heat-and-magnets/)