---
title: Rubbing your hands together makes them warm because friction turns m… — Forces — pushes, pulls, friction and magnets · tree and pragmatics
description: Rubbing your hands together makes them warm because friction turns motion into heat. Who acts: Rubbing, friction. A sentence of the lesson «Forces — pushes, pulls, friction and magnets» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/51-forces/13/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / [Forces — pushes, pulls, friction and m…](https://md.mova.elamur.ai/free/en/corpora/school/world/51-forces/) / 13

# Forces — pushes, pulls, friction and magnets, sentence 13

<!-- .ven lang=en -->
Rubbing your hands together makes them warm because friction turns motion into heat.

<!-- .vintro -->
**Who acts:** Rubbing, friction · **What happens:** rub, make, turn · **To what, where:** hands, motion, heat

<!-- .vabout -->
This is a sentence of the lesson «Forces — pushes, pulls, friction and magnets» 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 (Rubbing, friction), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:051-forces.lesson:13
# text = Rubbing your hands together makes them warm because friction turns motion into heat.
# source = school lesson (ours)
# course = world
# lesson = 051-forces.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): R5-strong ×1
1	Rubbing	rub	VERB	VBG	VerbForm=Ger	5	csubj	_	_
2	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	3	nmod:poss	_	_
3	hands	hand	NOUN	NNS	Number=Plur	1	obj	_	_
4	together	together	ADV	RB	_	1	advmod	_	Agree=R5-strong|Haiku=5:advmod
5	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	5	obj	_	_
7	warm	warm	ADJ	JJ	Degree=Pos	5	xcomp	_	_
8	because	because	SCONJ	IN	_	10	mark	_	_
9	friction	friction	NOUN	NN	Number=Sing	10	nsubj	_	_
10	turns	turn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	advcl	_	_
11	motion	motion	NOUN	NN	Number=Sing	10	obj	_	_
12	into	into	ADP	IN	_	13	case	_	_
13	heat	heat	NOUN	NN	Number=Sing	10	obl	_	_
14	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **rub** | gerund |  | your hands |  |  |  | together *property* | vn spray-9.7-1 «NP V NP.theme»: agent=Agent hand=Theme |
| 2 | **make** | present | Rubbing | hands *= hand* |  |  |  | warm *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset they=Product |
| 3 | **turn** | present | friction | motion |  | heat |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent motion=Theme into heat=Trajectory |

<!-- .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.

<!-- div src -->

**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:051-forces.lesson:13`.

**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): R5-strong ×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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Forces — pushes, pulls, friction and m…, 12](https://md.mova.elamur.ai/free/en/corpora/school/world/51-forces/12/)
- next →: [Forces — pushes, pulls, friction and m…, 14](https://md.mova.elamur.ai/free/en/corpora/school/world/51-forces/14/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/51-forces/)