---
title: When one force is bigger, the forces are unbalanced and the object s… — Pushes, pulls, friction and wheels · tree and pragmatics
description: When one force is bigger, the forces are unbalanced and the object speeds up, slows down or changes direction. Who acts: one force, object. A sentence of the lesson «Pushes, pulls, friction and wheels» of the world course of Mova's primary school with its dependency tree and the pragmatics of every 
---

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# Pushes, pulls, friction and wheels, sentence 2

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When one force is bigger, the forces are unbalanced and the object speeds up, slows down or changes direction.

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**Who acts:** one force, object · **What happens:** be, speed up, slow down · **To what, where:** forces

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This is a sentence of the lesson «Pushes, pulls, friction and wheels» of the world course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (one force, object), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:085-pushes-pulls-friction-wheels.lesson:2
# text = When one force is bigger, the forces are unbalanced and the object speeds up, slows down or changes direction.
# source = school lesson (ours)
# course = world
# lesson = 085-pushes-pulls-friction-wheels.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×1, R8-pos-agree ×1
1	When	when	SCONJ	WRB	_	5	mark	_	_
2	one	one	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
3	force	force	NOUN	NN	Number=Sing	5	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	bigger	big	ADJ	JJR	Degree=Cmp	10	advcl	_	_
6	,	,	PUNCT	,	_	10	punct	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	forces	force	NOUN	NNS	Number=Plur	10	nsubj:pass	_	_
9	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	Agree=R7-rel-agree|Haiku=10:aux:pass
10	unbalanced	unbalance	ADJ	JJ	Degree=Pos	0	root	_	Agree=R8-pos-agree|Haiku=0:root|HaikuPos=VERB:VBN:Tense=Past|VerbForm=Part|Voice=Pass
11	and	and	CCONJ	CC	_	14	cc	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	object	object	NOUN	NN	Number=Sing	14	nsubj	_	_
14	speeds	speed	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	conj	_	_
15	up	up	ADP	RP	_	14	compound:prt	_	_
16	,	,	PUNCT	,	_	17	punct	_	_
17	slows	slow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	conj	_	_
18	down	down	ADP	RP	_	17	compound:prt	_	_
19	or	or	CCONJ	CC	_	21	cc	_	_
20	changes	change	NOUN	NNS	Number=Plur	21	compound	_	_
21	direction	direction	NOUN	NN	Number=Sing	17	conj	_	_
22	.	.	PUNCT	.	_	10	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | one force |  |  |  |  | big *property* | tree rules |
| 2 | **is** | present · passive |  | the forces |  |  |  | unbalance *property* | tree rules |
| 3 | **speed up** | present | the object |  |  |  |  |  | vn run-51.3.2-2 «NP V»: agent=Theme |
| 4 | **slow down** | present | the object *not said here* |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:world:085-pushes-pulls-friction-wheels.lesson:2`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×1, R8-pos-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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- ← previous: [Pushes, pulls, friction and wheels, 1](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/1/)
- next →: [Pushes, pulls, friction and wheels, 3](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/3/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/)

