---
title: It is given that two teams in a tug of war exert equal and opposite… — Pushes and pulls: what makes things mo… · tree and pragmatics
description: It is given that two teams in a tug of war exert equal and opposite forces upon a rope. Determine the consequence for the motion of the rope. Exam question 2 of lesson 4 «Pushes and pulls: what makes things move and stop» of the physics course of Mova's primary school, with the dependency tree and p
---

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# Exam question 2 · Pushes and pulls: what makes things move and stop

<!-- .ven lang=en -->
It is given that two teams in a tug of war exert equal and opposite forces upon a rope. Determine the consequence for the motion of the rope.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** two teams, you, rope · **What happens:** give, exert, tug, determine, motion · **To what, where:** It, equal forces, war, consequence

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This is exam question 2 of lesson 4 «Pushes and pulls: what makes things move and stop» 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/4-pushes-and-pulls-move-and-stop/#e2).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that two teams in a tug of war exert equal and opposite forces upon a rope.

```conllu
# sent_id = question:physics:4-pushes-and-pulls-move-and-stop:e2:1
# text = It is given that two teams in a tug of war exert equal and opposite forces upon a rope.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	that	that	SCONJ	IN	_	12	mark	_	_
5	two	two	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
6	teams	team	NOUN	NNS	Number=Plur	12	nsubj	_	_
7	in	in	ADP	IN	_	9	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	tug	tug	NOUN	NN	Number=Sing	6	nmod	_	_
10	of	of	ADP	IN	_	11	case	_	_
11	war	war	NOUN	NN	Number=Sing	9	nmod	_	_
12	exert	exert	VERB	VB	VerbForm=Inf	3	advcl	_	_
13	equal	equal	ADJ	JJ	Degree=Pos	16	amod	_	_
14	and	and	CCONJ	CC	_	15	cc	_	_
15	opposite	opposite	ADJ	JJ	Degree=Pos	13	conj	_	_
16	forces	force	NOUN	NNS	Number=Plur	12	obj	_	_
17	upon	upon	ADP	IN	_	19	case	_	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
19	rope	rope	NOUN	NN	Number=Sing	12	obl	_	SpaceAfter=No
20	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | present · passive |  | It |  |  |  |  | vn give-13.1-1 «NP V NP»: subject=Theme |
| 2 | **exert** | infinitive | two teams in a tug of war | equal forces |  |  |  | upon a rope | vn use-105.1 «NP V NP»: agent=Agent force=Theme |
| 3 | **tug** |  |  | war |  |  |  |  | nom tug «act transitive»: of=patient |

<!-- .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:* Determine the consequence for the motion of the rope.

```conllu
# sent_id = question:physics:4-pushes-and-pulls-move-and-stop:e2:2
# text = Determine the consequence for the motion of the rope.
1	Determine	determine	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	for	for	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	motion	motion	NOUN	NN	Number=Sing	1	obl	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	rope	rope	NOUN	NN	Number=Sing	6	nmod	_	SpaceAfter=No
10	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **determine** | imperative | you *not said here* | the consequence |  |  |  | for the motion of the rope | vn discover-84 «NP V NP»: agent=Agent consequence=Topic |
| 2 | **motion** |  | the rope |  |  |  |  |  | nom motion «communication intransitive»: of=agent |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The rope moves towards the weaker team

```conllu
# sent_id = question:physics:4-pushes-and-pulls-move-and-stop:e2:o1:1
# text = The rope moves towards the weaker team
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	rope	rope	NOUN	NN	Number=Sing	3	nsubj	_	_
3	moves	move	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	towards	towards	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	weaker	weak	ADJ	JJR	Degree=Cmp	7	amod	_	_
7	team	team	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **move** | present | the rope |  |  | the weaker team |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme towards team=Trajectory |

### Option 2 {#o2}

<!-- .ven lang=en -->
The rope moves towards the stronger team

```conllu
# sent_id = question:physics:4-pushes-and-pulls-move-and-stop:e2:o2:1
# text = The rope moves towards the stronger team
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	rope	rope	NOUN	NN	Number=Sing	3	nsubj	_	_
3	moves	move	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	towards	towards	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	stronger	strong	ADJ	JJR	Degree=Cmp	7	amod	_	_
7	team	team	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **move** | present | the rope |  |  | the stronger team |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme towards team=Trajectory |

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

<!-- .ven lang=en -->
The rope remains at rest

```conllu
# sent_id = question:physics:4-pushes-and-pulls-move-and-stop:e2:o3:1
# text = The rope remains at rest
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	rope	rope	NOUN	NN	Number=Sing	3	nsubj	_	_
3	remains	remain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	at	at	ADP	IN	_	5	case	_	_
5	rest	rest	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **remain** | present | the rope |  |  | rest |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme at rest=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
The rope is accelerated upwards

```conllu
# sent_id = question:physics:4-pushes-and-pulls-move-and-stop:e2:o4:1
# text = The rope is accelerated upwards
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	rope	rope	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	accelerated	accelerate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	upwards	upwards	ADV	RB	_	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **accelerate** | present · passive |  | the rope |  |  |  | upwards *property* | vn other\_cos-45.4 «NP V NP.patient»: subject=Patient |

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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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- ← previous: [Pushes and pulls: what makes things mo…, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/physics/4-pushes-and-pulls-move-and-stop/e1/)
- next →: [Pushes and pulls: what makes things mo…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/physics/4-pushes-and-pulls-move-and-stop/e3/)
- ↑ back to [Pushes and pulls: what makes things move and stop](https://md.mova.elamur.ai/free/en/corpora/questions/physics/4-pushes-and-pulls-move-and-stop/)