---
title: Is it true that a coin dropped from a really tall building could kil… — Parachutes, skydivers and falling safely · tree and pragmatics
description: Is it true that a coin dropped from a really tall building could kill someone? Test 1 · ★ of lesson 3 «Parachutes, skydivers and falling safely» 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 was right.
---

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# Test 1 · ★ · Parachutes, skydivers and falling safely

<!-- .ven lang=en -->
Is it true that a coin dropped from a really tall building could kill someone?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** it, coin · **What happens:** be, drop, kill · **To what, where:** coin, tall building, someone

<!-- .vabout -->
This is test 1 · ★ of lesson 3 «Parachutes, skydivers and falling safely» 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/3-parachutes-and-falling-safely/#t1).

## The question {#question}

```conllu
# sent_id = question:physics:3-parachutes-and-falling-safely:t1:1
# text = Is it true that a coin dropped from a really tall building could kill someone?
1	Is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
2	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
3	true	true	ADJ	JJ	Degree=Pos	0	root	_	_
4	that	that	SCONJ	IN	_	14	mark	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	coin	coin	NOUN	NN	Number=Sing	14	nsubj	_	_
7	dropped	drop	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	acl	_	_
8	from	from	ADP	IN	_	12	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
10	really	really	ADV	RB	_	11	advmod	_	_
11	tall	tall	ADJ	JJ	Degree=Pos	12	amod	_	_
12	building	building	NOUN	NN	Number=Sing	7	obl	_	_
13	could	could	AUX	MD	VerbForm=Fin	14	aux	_	_
14	kill	kill	VERB	VB	VerbForm=Inf	3	advcl	_	_
15	someone	someone	PRON	NN	Number=Sing|PronType=Ind	14	obj	_	SpaceAfter=No
16	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | it |  |  |  |  | true *property* | tree rules |
| 2 | **drop** | participle |  | a coin *not said here* |  | a tall building |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme from building=Trajectory |
| 3 | **kill** | could | a coin | someone |  |  |  |  | vn remove-10.1 «NP V NP»: agent=Agent someone=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 {#o1}

<!-- .ven lang=en -->
Yes, coins speed up for ever

```conllu
# sent_id = question:physics:3-parachutes-and-falling-safely:t1:o1:1
# text = Yes, coins speed up for ever
1	Yes	yes	INTJ	UH	Polarity=Pos	4	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	coins	coin	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	speed	speed	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	up	up	ADP	RP	_	4	compound:prt	_	_
6	for	for	ADP	IN	_	7	case	_	_
7	ever	ever	ADV	RB	PronType=Ind	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **speed up** | present | coins |  |  |  |  |  | vn run-51.3.2-2 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Yes, it falls faster than a bullet

```conllu
# sent_id = question:physics:3-parachutes-and-falling-safely:t1:o2:1
# text = Yes, it falls faster than a bullet
1	Yes	yes	INTJ	UH	Polarity=Pos	4	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	4	punct	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
4	falls	fall	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	faster	fast	ADV	RBR	Degree=Cmp	4	advmod	_	_
6	than	than	ADP	IN	_	8	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	bullet	bullet	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fall** | present | it |  |  |  |  | fast *property* | vn occur-48.3 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
No, coins never reach the ground

```conllu
# sent_id = question:physics:3-parachutes-and-falling-safely:t1:o3:1
# text = No, coins never reach the ground
1	No	no	INTJ	UH	Polarity=Neg	5	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	coins	coin	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	never	never	ADV	RB	PronType=Neg	5	advmod	_	_
5	reach	reach	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	ground	ground	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **reach** | present | coins | the ground |  |  |  |  | vn body\_motion-49.2-1-1 «NP V NP ADV»: agent=Agent ground=Theme |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
No, air slows it to a sting

```conllu
# sent_id = question:physics:3-parachutes-and-falling-safely:t1:o4:1
# text = No, air slows it to a sting
1	No	no	INTJ	UH	Polarity=Neg	4	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	air	air	NOUN	NN	Number=Sing	4	nsubj	_	_
4	slows	slow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	obj	_	_
6	to	to	ADP	IN	_	8	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	sting	sting	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **slow** | present | air | it |  |  |  | to a sting | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent it=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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- next →: [Parachutes, skydivers and falling safely, test 2](https://md.mova.elamur.ai/free/en/corpora/questions/physics/3-parachutes-and-falling-safely/t2/)
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