--- title: A lever trades distance for force: if your end of the bar is ten tim… — Thinking it through — forces, heat, light and en… · tree and pragmatics description: A lever trades distance for force: if your end of the bar is ten times further from the pivot than the stone, you need about a tenth of the force, but your end must move ten times as far. Who acts: lever, end, you. A sentence of the lesson «Thinking it through — forces, heat, light and energy» of th --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/60-reasoning-energy-technology/4/) [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/) / [Thinking it through — forces, heat, li…](https://md.mova.elamur.ai/free/en/corpora/school/world/60-reasoning-energy-technology/) / 4 # Thinking it through — forces, heat, light and energy, sentence 4 A lever trades distance for force: if your end of the bar is ten times further from the pivot than the stone, you need about a tenth of the force, but your end must move ten times as far. **Who acts:** lever, end, you · **What happens:** trade, be, need, move · **To what, where:** distance, pivot, tenth This is a sentence of the lesson «Thinking it through — forces, heat, light and energy» 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 (lever, end, you), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:world:060-reasoning-energy-technology.lesson:4 # text = A lever trades distance for force: if your end of the bar is ten times further from the pivot than the stone, you need about a tenth of the force, but your end must move ten times as far. # source = school lesson (ours) # course = world # lesson = 060-reasoning-energy-technology.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 ×2, R8-pos-agree ×1 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 lever lever NOUN NN Number=Sing 3 nsubj _ _ 3 trades trade VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 distance distance NOUN NN Number=Sing 3 obj _ _ 5 for for ADP IN _ 6 case _ _ 6 force force NOUN NN Number=Sing 4 nmod _ _ 7 : : PUNCT : _ 26 punct _ _ 8 if if SCONJ IN _ 17 mark _ _ 9 your your PRON PRP$ Case=Gen|Person=2|Poss=Yes|PronType=Prs 10 nmod:poss _ _ 10 end end NOUN NN Number=Sing 17 nsubj _ _ 11 of of ADP IN _ 13 case _ _ 12 the the DET DT Definite=Def|PronType=Art 13 det _ _ 13 bar bar NOUN NN Number=Sing 10 nmod _ _ 14 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 17 cop _ _ 15 ten ten NUM CD NumForm=Word|NumType=Card 16 nummod _ _ 16 times time NOUN NNS Number=Plur 17 obl:unmarked _ _ 17 further far ADV RBR Degree=Cmp 26 advcl _ Agree=R8-pos-agree|Haiku=26:advcl|HaikuPos=ADV:RB:_ 18 from from ADP IN _ 20 case _ _ 19 the the DET DT Definite=Def|PronType=Art 20 det _ _ 20 pivot pivot NOUN NN Number=Sing 17 obl _ _ 21 than than ADP IN _ 23 case _ _ 22 the the DET DT Definite=Def|PronType=Art 23 det _ _ 23 stone stone NOUN NN Number=Sing 20 nmod _ _ 24 , , PUNCT , _ 17 punct _ _ 25 you you PRON PRP Case=Nom|Person=2|PronType=Prs 26 nsubj _ _ 26 need need VERB VBP Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin 3 parataxis _ Agree=R7-rel-agree|Haiku=3:conj 27 about about ADV RB _ 29 advmod _ Agree=R7-rel-agree|Haiku=29:case|HaikuPos=ADP:IN:_ 28 a a DET DT Definite=Ind|PronType=Art 29 det _ _ 29 tenth tenth NOUN NN Number=Sing 26 obj _ _ 30 of of ADP IN _ 32 case _ _ 31 the the DET DT Definite=Def|PronType=Art 32 det _ _ 32 force force NOUN NN Number=Sing 29 nmod _ _ 33 , , PUNCT , _ 38 punct _ _ 34 but but CCONJ CC _ 38 cc _ _ 35 your your PRON PRP$ Case=Gen|Person=2|Poss=Yes|PronType=Prs 36 nmod:poss _ _ 36 end end NOUN NN Number=Sing 38 nsubj _ _ 37 must must AUX MD VerbForm=Fin 38 aux _ _ 38 move move VERB VB VerbForm=Inf 3 parataxis _ _ 39 ten ten NUM CD NumForm=Word|NumType=Card 40 nummod _ _ 40 times time NOUN NNS Number=Plur 38 obl:unmarked _ _ 41 as as ADV RB _ 42 advmod _ _ 42 far far ADV RB Degree=Pos 38 advmod _ _ 43 . . PUNCT . _ 3 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: kept the draft | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **trade** | present | a lever | distance | | | | for force | vn exchange-13.6.1 «NP V NP PP.co-theme»: agent=Agent distance=Theme for force=Co-Theme | | 2 | **is** *a condition, not said to happen* | present | your end of the bar | | | the pivot than the stone | time | far *property* | tree rules | | 3 | **need** | present | you | a tenth of the force | | | | | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot tenth=Theme | | 4 | **move** | must | your end | | | | time | far *property* | vn roll-51.3.1 «NP.theme V»: agent=Theme | 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:060-reasoning-energy-technology.lesson:4`. **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 ×2, 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/). - ← previous: [Thinking it through — forces, heat, li…, 2](https://md.mova.elamur.ai/free/en/corpora/school/world/60-reasoning-energy-technology/2/) - next →: [Thinking it through — forces, heat, li…, 5](https://md.mova.elamur.ai/free/en/corpora/school/world/60-reasoning-energy-technology/5/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/60-reasoning-energy-technology/)