---
title: If the Earth's gravity suddenly switched off, what would the Moon do? — Gravity · tree and pragmatics
description: If the Earth's gravity suddenly switched off, what would the Moon do? Test 2 · ★ of lesson 6 «Gravity» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 2 · ★ · Gravity

<!-- .ven lang=en -->
If the Earth's gravity suddenly switched off, what would the Moon do?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** Moon · **What happens:** switch off, do · **To what, where:** gravity

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This is test 2 · ★ of lesson 6 «Gravity» of the world 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/world/6-gravity/#t2).

## The question {#question}

```conllu
# sent_id = question:world:6-gravity:t2:1
# text = If the Earth's gravity suddenly switched off, what would the Moon do?
1	If	if	SCONJ	IN	_	7	mark	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	Earth	Earth	PROPN	NNP	Number=Sing	5	nmod:poss	_	SpaceAfter=No
4	's	's	PART	POS	_	3	case	_	_
5	gravity	gravity	NOUN	NN	Number=Sing	7	nsubj:pass	_	_
6	suddenly	suddenly	ADV	RB	_	7	advmod	_	_
7	switched	switch	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	14	advcl	_	_
8	off	off	ADP	RP	_	7	compound:prt	_	SpaceAfter=No
9	,	,	PUNCT	,	_	7	punct	_	_
10	what	what	PRON	WP	PronType=Int	14	obj	_	_
11	would	would	AUX	MD	VerbForm=Fin	14	aux	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	Moon	Moon	PROPN	NNP	Number=Sing	14	nsubj	_	_
14	do	do	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
15	?	?	PUNCT	.	_	14	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **switch off** *a condition, not said to happen* | participle · passive |  | the Earth's gravity |  |  |  | suddenly *property* | vn convert-26.6.2-1-1 «NP V NP»: subject=Patient |
| 2 | **do** | would | the Moon |  |  |  |  |  | vn act-114-1 «NP V NP»: agent=Agent what=Eventuality |

<!-- .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 {#o1}

<!-- .ven lang=en -->
Fall onto the Earth

```conllu
# sent_id = question:world:6-gravity:t2:o1:1
# text = Fall onto the Earth
1	Fall	fall	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	onto	onto	ADP	IN	_	4	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	Earth	Earth	PROPN	NNP	Number=Sing	1	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fall** | imperative | you *not said here* |  |  | the Earth |  |  | vn escape-51.1-1 «NP V PP.initial\_location»: agent=Theme onto earth=Initial\_Location |

### Option 2 {#o2}

<!-- .ven lang=en -->
Stop and hang still

```conllu
# sent_id = question:world:6-gravity:t2:o2:1
# text = Stop and hang still
1	Stop	stop	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	and	and	CCONJ	CC	_	3	cc	_	_
3	hang	hang	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
4	still	still	ADV	RB	_	3	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop** | imperative | you *not said here* |  |  |  |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |
| 2 | **hang** | infinitive | you *not said here* |  |  |  | still |  | vn assuming\_position-50 «NP V»: agent=Agent |

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

<!-- .ven lang=en -->
Fly off in a straight line

```conllu
# sent_id = question:world:6-gravity:t2:o3:1
# text = Fly off in a straight line
1	Fly	fly	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	off	off	ADP	RP	_	1	compound:prt	_	_
3	in	in	ADP	IN	_	6	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	straight	straight	ADJ	JJ	Degree=Pos	6	amod	_	_
6	line	line	NOUN	NN	Number=Sing	1	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fly off** | imperative | you *not said here* |  |  | a straight line |  |  | vn spatial\_configuration-47.6-1 «NP V PP.location»: agent=Theme in line=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
Go around the Earth faster

```conllu
# sent_id = question:world:6-gravity:t2:o4:1
# text = Go around the Earth faster
1	Go	go	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	around	around	ADP	IN	_	4	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	Earth	Earth	PROPN	NNP	Number=Sing	1	obl	_	_
5	faster	fast	ADV	RBR	Degree=Cmp	1	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **go** | imperative | you *not said here* |  |  | the Earth |  | fast *property* | vn escape-51.1-1 «NP V PP.initial\_location»: agent=Theme around earth=Initial\_Location |

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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: [Gravity, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/world/6-gravity/t1/)
- next →: [Gravity, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/world/6-gravity/t3/)
- ↑ back to [Gravity](https://md.mova.elamur.ai/free/en/corpora/questions/world/6-gravity/)