--- title: Balanced forces are equal and opposite, so they do not change an obj… — Pushes, pulls, friction and wheels · tree and pragmatics description: Balanced forces are equal and opposite, so they do not change an object's movement. Who acts: Balanced forces, forces, 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 clause. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/13/) [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/) / [Pushes, pulls, friction and wheels](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/) / 13 # Pushes, pulls, friction and wheels, sentence 13 Balanced forces are equal and opposite, so they do not change an object's movement. **Who acts:** Balanced forces, forces, object · **What happens:** balance, be, not change, move · **To what, where:** movement 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 (Balanced forces, forces, 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:13 # text = Balanced forces are equal and opposite, so they do not change an object's movement. # 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): R5-strong ×1, R7-rel-agree ×1 1 Balanced balance VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 2 amod _ _ 2 forces force NOUN NNS Number=Plur 4 nsubj _ _ 3 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 4 equal equal ADJ JJ Degree=Pos 0 root _ _ 5 and and CCONJ CC _ 6 cc _ _ 6 opposite opposite ADJ JJ Degree=Pos 4 conj _ _ 7 , , PUNCT , _ 12 punct _ _ 8 so so ADV RB _ 12 advmod _ _ 9 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 12 nsubj _ _ 10 do do AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 12 aux _ _ 11 not not PART RB Polarity=Neg 12 advmod _ _ 12 change change VERB VB VerbForm=Inf 4 parataxis _ Agree=R7-rel-agree|Haiku=4:conj 13 an a DET DT Definite=Ind|PronType=Art 14 det _ Agree=R5-strong|Haiku=16:det 14 object object NOUN NN Number=Sing 16 nmod:poss _ _ 15 's 's PART POS _ 14 case _ _ 16 movement movement NOUN NN Number=Sing 12 obj _ _ 17 . . PUNCT . _ 4 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **balance** | participle | | | | | | | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme | | 2 | **is** | present | Balanced forces | | | | | equal *property* | tree rules | | 3 | **be** | | Balanced forces *not said here* | | | | | | tree rules | | 4 | **not** **change** | present · do-support | forces *= force* | a object's movement | | | | | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent movement=Patient | | 5 | **move** | | a object | | | | | | nom movement «act transitive»: poss=agent | 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. **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: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, R7-rel-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/). - ← previous: [Pushes, pulls, friction and wheels, 11](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/11/) - next →: [Pushes, pulls, friction and wheels, 15](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/15/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/85-pushes-pulls-friction-wheels/)