---
title: Ascertain the consequence of severing a bar magnet transversely into… — Magnets: pulling and pushing without t… · tree and pragmatics
description: Ascertain the consequence of severing a bar magnet transversely into two portions. Exam question 2 of lesson 29 «Magnets: pulling and pushing without touching» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice wa
---

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# Exam question 2 · Magnets: pulling and pushing without touching

<!-- .ven lang=en -->
Ascertain the consequence of severing a bar magnet transversely into two portions.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, consequence · **What happens:** ascertain, sever · **To what, where:** consequence, bar magnet, two portions

<!-- .vabout -->
This is exam question 2 of lesson 29 «Magnets: pulling and pushing without touching» of the physics course of Mova's primary school, asked in stiff, formal language. 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/29-magnets-pulling-and-pushing-without-touching/#e2).

## The question {#question}

```conllu
# sent_id = question:physics:29-magnets-pulling-and-pushing-without-touching:e2:1
# text = Ascertain the consequence of severing a bar magnet transversely into two portions.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	consequence	consequence	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	SCONJ	IN	_	5	mark	_	_
5	severing	sever	VERB	VBG	VerbForm=Ger	3	acl	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	bar	bar	NOUN	NN	Number=Sing	8	compound	_	_
8	magnet	magnet	NOUN	NN	Number=Sing	5	obj	_	_
9	transversely	transversely	ADV	RB	_	5	advmod	_	_
10	into	into	ADP	IN	_	12	case	_	_
11	two	two	NUM	CD	NumForm=Word|NumType=Card	12	nummod	_	_
12	portions	portion	NOUN	NNS	Number=Plur	5	obl	_	SpaceAfter=No
13	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the consequence |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent consequence=Topic |
| 2 | **sever** | gerund | the consequence *not said here* | a bar magnet |  | two portions |  | transversely *property* | vn remove-10.1 «NP V NP»: agent=Agent magnet=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.

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Each portion constitutes a complete magnet possessing both poles

```conllu
# sent_id = question:physics:29-magnets-pulling-and-pushing-without-touching:e2:o1:1
# text = Each portion constitutes a complete magnet possessing both poles
1	Each	each	DET	DT	PronType=Tot	2	det	_	_
2	portion	portion	NOUN	NN	Number=Sing	3	nsubj	_	_
3	constitutes	constitute	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	complete	complete	ADJ	JJ	Degree=Pos	6	amod	_	_
6	magnet	magnet	NOUN	NN	Number=Sing	3	obj	_	_
7	possessing	possess	VERB	VBG	VerbForm=Ger	6	acl	_	_
8	both	both	DET	DT	PronType=Tot	9	det	_	_
9	poles	pole	NOUN	NNS	Number=Plur	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **constitute** | present | each portion | a complete magnet |  |  |  |  | vn comprise-107.2-1 «NP V NP»: agent=Theme magnet=Pivot |
| 2 | **possess** | gerund | a complete magnet *not said here* | both poles |  |  |  |  | vn own-100.1 «NP V NP»: agent=Pivot pole=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Both portions forfeit their magnetic properties entirely

```conllu
# sent_id = question:physics:29-magnets-pulling-and-pushing-without-touching:e2:o2:1
# text = Both portions forfeit their magnetic properties entirely
1	Both	both	DET	DT	PronType=Tot	2	det	_	_
2	portions	portion	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	forfeit	forfeit	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
5	magnetic	magnetic	ADJ	JJ	Degree=Pos	6	amod	_	_
6	properties	property	NOUN	NNS	Number=Plur	3	obj	_	_
7	entirely	entirely	ADV	RB	_	3	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **forfeit** | present | both portions | portions's magnetic properties |  |  |  | entirely *property* | vn contribute-13.2-1-1 «NP V NP.theme (PP)»: agent=Agent property=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
One portion possesses solely a north pole and the other a south

```conllu
# sent_id = question:physics:29-magnets-pulling-and-pushing-without-touching:e2:o3:1
# text = One portion possesses solely a north pole and the other a south
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	portion	portion	NOUN	NN	Number=Sing	3	nsubj	_	_
3	possesses	possess	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	solely	solely	ADV	RB	_	7	advmod	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	north	north	NOUN	NN	Number=Sing	7	compound	_	_
7	pole	pole	NOUN	NN	Number=Sing	3	obj	_	_
8	and	and	CCONJ	CC	_	12	cc	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	other	other	ADJ	JJ	Degree=Pos	12	amod	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	south	south	NOUN	NN	Number=Sing	7	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **possess** | present | One portion | a north pole and a other south |  |  |  |  | vn own-100.1 «NP V NP»: agent=Pivot pole=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
The magnetism is retained by the larger portion alone

```conllu
# sent_id = question:physics:29-magnets-pulling-and-pushing-without-touching:e2:o4:1
# text = The magnetism is retained by the larger portion alone
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	magnetism	magnetism	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	retained	retain	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	by	by	ADP	IN	_	8	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	larger	large	ADJ	JJR	Degree=Cmp	8	amod	_	_
8	portion	portion	NOUN	NN	Number=Sing	4	obl	_	_
9	alone	alone	ADV	RB	_	8	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **retain** | present · passive | the larger portion | the magnetism |  |  |  |  | tree rules |

<!-- div src -->

**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.

<!-- /div -->

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- ← previous: [Magnets: pulling and pushing without t…, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/physics/29-magnets-pulling-and-pushing-without-touching/e1/)
- next →: [Magnets: pulling and pushing without t…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/physics/29-magnets-pulling-and-pushing-without-touching/e3/)
- ↑ back to [Magnets: pulling and pushing without touching](https://md.mova.elamur.ai/free/en/corpora/questions/physics/29-magnets-pulling-and-pushing-without-touching/)