---
title: Two balls the same size, one steel and one plastic, are dropped from… — Why things fall: the apple and the pul… · tree and pragmatics
description: Two balls the same size, one steel and one plastic, are dropped from a window. Which is closest to true? Test 7 of lesson 1 «Why things fall: the apple and the pull of the Earth» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each optio
---

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# Test 7 · Why things fall: the apple and the pull of the Earth

<!-- .ven lang=en -->
Two balls the same size, one steel and one plastic, are dropped from a window. Which is closest to true?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **What happens:** drop, be · **To what, where:** Two balls, window

<!-- .vabout -->
This is test 7 of lesson 1 «Why things fall: the apple and the pull of the Earth» 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/1-why-things-fall/#t7).

## The question {#question}

<!-- .note -->
*Sentence 1:* Two balls the same size, one steel and one plastic, are dropped from a window.

```conllu
# sent_id = question:physics:1-why-things-fall:t7:1
# text = Two balls the same size, one steel and one plastic, are dropped from a window.
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	balls	ball	NOUN	NNS	Number=Plur	14	nsubj	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	same	same	ADJ	JJ	Degree=Pos	5	amod	_	_
5	size	size	NOUN	NN	Number=Sing	2	appos	_	SpaceAfter=No
6	,	,	PUNCT	,	_	8	punct	_	_
7	one	one	NUM	CD	NumForm=Word|NumType=Card	8	nummod	_	_
8	steel	steel	NOUN	NN	Number=Sing	5	conj	_	_
9	and	and	CCONJ	CC	_	11	cc	_	_
10	one	one	NUM	CD	NumForm=Word|NumType=Card	11	nummod	_	_
11	plastic	plastic	NOUN	NN	Number=Sing	5	conj	_	SpaceAfter=No
12	,	,	PUNCT	,	_	2	punct	_	_
13	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	14	aux:pass	_	_
14	dropped	drop	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
15	from	from	ADP	IN	_	17	case	_	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	_	_
17	window	window	NOUN	NN	Number=Sing	14	obl	_	SpaceAfter=No
18	.	.	PUNCT	.	_	14	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **drop** | present · passive |  | Two balls |  | a window |  |  | vn put\_direction-9.4 «NP V NP PP.destination»: subject=Theme from window=Destination |

<!-- .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:* Which is closest to true?

```conllu
# sent_id = question:physics:1-why-things-fall:t7:2
# text = Which is closest to true?
1	Which	which	PRON	WDT	PronType=Rel	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	closest	close	ADJ	JJS	Degree=Sup	0	root	_	_
4	to	to	ADP	IN	_	5	case	_	_
5	true	true	ADJ	JJ	Degree=Pos	3	obl	_	SpaceAfter=No
6	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | to true; close *property* | tree rules |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The steel one lands twice as soon

```conllu
# sent_id = question:physics:1-why-things-fall:t7:o1:1
# text = The steel one lands twice as soon
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	steel	steel	NOUN	NN	Number=Sing	3	compound	_	_
3	one	one	NOUN	NN	Number=Sing	4	nsubj	_	_
4	lands	land	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	twice	twice	ADV	RB	NumForm=Word|NumType=Mult	4	advmod	_	_
6	as	as	ADV	RB	_	7	advmod	_	_
7	soon	soon	ADV	RB	Degree=Pos	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **land** | present | the steel one |  |  |  |  | soon, twice *property* | vn pocket-9.10-1 «NP V»: agent=Theme |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
They land at almost the same time

```conllu
# sent_id = question:physics:1-why-things-fall:t7:o2:1
# text = They land at almost the same time
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	land	land	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	at	at	ADP	IN	_	7	case	_	_
4	almost	almost	ADV	RB	_	7	advmod	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	same	same	ADJ	JJ	Degree=Pos	7	amod	_	_
7	time	time	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **land** | present | They |  |  |  | time |  | vn pocket-9.10-1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
The plastic one lands first

```conllu
# sent_id = question:physics:1-why-things-fall:t7:o3:1
# text = The plastic one lands first
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	plastic	plastic	ADJ	JJ	Degree=Pos	3	amod	_	_
3	one	one	NOUN	NN	Number=Sing	4	nsubj	_	_
4	lands	land	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	first	first	ADV	RB	NumForm=Word|NumType=Ord	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **land** | present | the plastic one |  |  |  |  | first *property* | vn pocket-9.10-1 «NP V»: agent=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
The plastic one does not fall

```conllu
# sent_id = question:physics:1-why-things-fall:t7:o4:1
# text = The plastic one does not fall
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	plastic	plastic	ADJ	JJ	Degree=Pos	3	amod	_	_
3	one	one	NOUN	NN	Number=Sing	6	nsubj	_	_
4	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	aux	_	_
5	not	not	PART	RB	Polarity=Neg	6	advmod	_	_
6	fall	fall	VERB	VB	VerbForm=Inf	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **fall** | present · do-support | the plastic one |  |  |  |  |  | vn occur-48.3 «NP V»: agent=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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- ← previous: [Why things fall: the apple and the pul…, test 6](https://md.mova.elamur.ai/free/en/corpora/questions/physics/1-why-things-fall/t6/)
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