---
title: In a cartoon a boy brakes his bike hard in the rain and stops at onc… — Friction: the grip that stops and helps · tree and pragmatics
description: In a cartoon a boy brakes his bike hard in the rain and stops at once. What is closer to the truth? Test 2 of lesson 6 «Friction: the grip that stops and helps» 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 w
---

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# Test 2 · Friction: the grip that stops and helps

<!-- .ven lang=en -->
In a cartoon a boy brakes his bike hard in the rain and stops at once. What is closer to the truth?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** boy · **What happens:** brake, stop, be · **To what, where:** bike, cartoon

<!-- .vabout -->
This is test 2 of lesson 6 «Friction: the grip that stops and helps» 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/6-friction-the-grip/#t2).

## The question {#question}

<!-- .note -->
*Sentence 1:* In a cartoon a boy brakes his bike hard in the rain and stops at once.

```conllu
# sent_id = question:physics:6-friction-the-grip:t2:1
# text = In a cartoon a boy brakes his bike hard in the rain and stops at once.
1	In	in	ADP	IN	_	3	case	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
3	cartoon	cartoon	NOUN	NN	Number=Sing	6	obl	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	boy	boy	NOUN	NN	Number=Sing	6	nsubj	_	_
6	brakes	brake	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	bike	bike	NOUN	NN	Number=Sing	6	obj	_	_
9	hard	hard	ADV	RB	Degree=Pos	6	advmod	_	_
10	in	in	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	rain	rain	NOUN	NN	Number=Sing	6	obl	_	_
13	and	and	CCONJ	CC	_	14	cc	_	_
14	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	conj	_	_
15	at	at	ADP	IN	_	16	case	_	_
16	once	once	ADV	RB	NumForm=Word|NumType=Mult	14	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **brake** | present | a boy | boy's bike |  | a cartoon |  | in the rain; hard *property* | tree rules |
| 2 | **stop** | present | a boy *not said here* |  |  |  |  |  | vn lodge-46 «NP V PP.location»: agent=Theme at once=Location |

<!-- .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:* What is closer to the truth?

```conllu
# sent_id = question:physics:6-friction-the-grip:t2:2
# text = What is closer to the truth?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	closer	close	ADJ	JJR	Degree=Cmp	0	root	_	_
4	to	to	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	truth	truth	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
7	?	?	PUNCT	.	_	3	punct	_	_
```

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

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Wet brakes grip much better

```conllu
# sent_id = question:physics:6-friction-the-grip:t2:o1:1
# text = Wet brakes grip much better
1	Wet	wet	ADJ	JJ	Degree=Pos	2	amod	_	_
2	brakes	brake	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	grip	grip	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	much	much	ADV	RB	_	5	advmod	_	_
5	better	good	ADJ	JJR	Degree=Cmp	3	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **grip** | present | Wet brakes |  |  |  |  | good *property* | vn touch-20-1 «NP V NP»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
Rain makes the bike stop by itself

```conllu
# sent_id = question:physics:6-friction-the-grip:t2:o2:1
# text = Rain makes the bike stop by itself
1	Rain	rain	NOUN	NN	Number=Sing	2	nsubj	_	_
2	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	bike	bike	NOUN	NN	Number=Sing	5	compound	_	_
5	stop	stop	NOUN	NN	Number=Sing	2	obj	_	_
6	by	by	ADP	IN	_	7	case	_	_
7	itself	itself	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs|Reflex=Yes	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Rain | the bike stop |  |  |  | by Rain | vn build-26.1-1 «NP.asset V NP»: agent=Asset stop=Product |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Wet brakes grip less, so he needs longer to stop

```conllu
# sent_id = question:physics:6-friction-the-grip:t2:o3:1
# text = Wet brakes grip less, so he needs longer to stop
1	Wet	wet	ADJ	JJ	Degree=Pos	2	amod	_	_
2	brakes	brake	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	grip	grip	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	less	less	ADV	RBR	Degree=Cmp	3	advmod	_	SpaceAfter=No
5	,	,	PUNCT	,	_	8	punct	_	_
6	so	so	ADV	RB	_	8	advmod	_	_
7	he	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	8	nsubj	_	_
8	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
9	longer	long	ADV	RBR	Degree=Cmp	8	advmod	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	stop	stop	VERB	VB	VerbForm=Inf	8	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **grip** | present | Wet brakes |  |  |  |  | less *property* | vn touch-20-1 «NP V NP»: agent=Agent |
| 2 | **need** | present | he |  |  |  |  | long *property* | vn want-32.1-1-1 «NP V NP S\_INF»: agent=Pivot |
| 3 | **stop** | to-infinitive | he *not said here* |  |  |  |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |

### Option 4 {#o4}

<!-- .ven lang=en -->
Brakes do not work at all in rain

```conllu
# sent_id = question:physics:6-friction-the-grip:t2:o4:1
# text = Brakes do not work at all in rain
1	Brakes	brake	NOUN	NNS	Number=Plur	4	nsubj	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	work	work	VERB	VB	VerbForm=Inf	0	root	_	_
5	at	at	ADP	IN	_	6	case	_	_
6	all	all	DET	DT	PronType=Tot	4	obl	_	_
7	in	in	ADP	IN	_	8	case	_	_
8	rain	rain	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **work** | present · do-support | Brakes |  |  |  |  | in rain; at all | vn employment-95.3 «NP V PP.theme»: agent=Agent at all=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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