--- title: Why is an axe thin at the edge and wide at the back? — Wheels, axles, ramps and screws · tree and pragmatics description: Why is an axe thin at the edge and wide at the back? Test 8 · ★ of lesson 34 «Wheels, axles, ramps and screws» 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 was right. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/t8/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/questions/physics/) / [Wheels, axles, ramps and screws](https://md.mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/) / t8 # Test 8 · ★ · Wheels, axles, ramps and screws Why is an axe thin at the edge and wide at the back? **Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** axe · **What happens:** be · **To what, where:** edge, back This is test 8 · ★ of lesson 34 «Wheels, axles, ramps and screws» 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/34-wheels-axles-ramps-and-screws/#t8). ## The question {#question} ```conllu # sent_id = question:physics:34-wheels-axles-ramps-and-screws:t8:1 # text = Why is an axe thin at the edge and wide at the back? 1 Why why ADV WRB PronType=Int 5 advmod _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 cop _ _ 3 an a DET DT Definite=Ind|PronType=Art 4 det _ _ 4 axe axe NOUN NN Number=Sing 5 nsubj _ _ 5 thin thin ADJ JJ Degree=Pos 0 root _ _ 6 at at ADP IN _ 8 case _ _ 7 the the DET DT Definite=Def|PronType=Art 8 det _ _ 8 edge edge NOUN NN Number=Sing 5 obl _ _ 9 and and CCONJ CC _ 10 cc _ _ 10 wide wide ADJ JJ Degree=Pos 5 conj _ _ 11 at at ADP IN _ 13 case _ _ 12 the the DET DT Definite=Def|PronType=Art 13 det _ _ 13 back back NOUN NN Number=Sing 10 obl _ SpaceAfter=No 14 ? ? PUNCT . _ 5 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | a axe | | | the edge | | thin *property* | tree rules | | 2 | **be** | | a axe *not said here* | | | the back | | | tree rules | 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. ## The options {#options} ### Option 1 · ← Mova's choice · ✓ the right answer {#o1} It is a wedge that forces the wood apart ```conllu # sent_id = question:physics:34-wheels-axles-ramps-and-screws:t8:o1:1 # text = It is a wedge that forces the wood apart 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 4 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 cop _ _ 3 a a DET DT Definite=Ind|PronType=Art 4 det _ _ 4 wedge wedge NOUN NN Number=Sing 0 root _ _ 5 that that PRON WDT PronType=Rel 6 det _ _ 6 forces force NOUN NNS Number=Plur 4 nmod _ _ 7 the the DET DT Definite=Def|PronType=Art 8 det _ _ 8 wood wood NOUN NN Number=Sing 6 nmod:unmarked _ _ 9 apart apart ADV RB _ 4 advmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is a** | present | It | a wedge | | | | that forces the wood *nmod*; apart *property* | tree rules | ### Option 2 {#o2} It is just the old fashion for axes, nothing more ```conllu # sent_id = question:physics:34-wheels-axles-ramps-and-screws:t8:o2:1 # text = It is just the old fashion for axes, nothing more 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 6 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 6 cop _ _ 3 just just ADV RB _ 6 advmod _ _ 4 the the DET DT Definite=Def|PronType=Art 6 det _ _ 5 old old ADJ JJ Degree=Pos 6 amod _ _ 6 fashion fashion NOUN NN Number=Sing 0 root _ _ 7 for for ADP IN _ 8 case _ _ 8 axes ax NOUN NNS Number=Plur 6 nmod _ SpaceAfter=No 9 , , PUNCT , _ 10 punct _ _ 10 nothing nothing PRON NN Number=Sing|PronType=Neg 6 appos _ _ 11 more more ADV RBR Degree=Cmp 10 advmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is a** | present | It | the old fashion | | | | for axes | tree rules | ### Option 3 {#o3} The thin edge holds more heat and burns the wood ```conllu # sent_id = question:physics:34-wheels-axles-ramps-and-screws:t8:o3:1 # text = The thin edge holds more heat and burns the wood 1 The the DET DT Definite=Def|PronType=Art 3 det _ _ 2 thin thin ADJ JJ Degree=Pos 3 amod _ _ 3 edge edge NOUN NN Number=Sing 4 nsubj _ _ 4 holds hold VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 more more ADJ JJR Degree=Cmp 6 amod _ _ 6 heat heat NOUN NN Number=Sing 4 obj _ _ 7 and and CCONJ CC _ 8 cc _ _ 8 burns burn VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 conj _ _ 9 the the DET DT Definite=Def|PronType=Art 10 det _ _ 10 wood wood NOUN NN Number=Sing 8 obj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **hold** | present | the thin edge | more heat | | | | | vn keep-15.2 «NP V NP»: agent=Agent heat=Theme | | 2 | **burn** | present | the thin edge *not said here* | the wood | | | | | vn light\_emission-43.1 «NP V NP.theme»: agent=Agent wood=Theme | ### Option 4 {#o4} The wide back makes the whole axe lighter to swing ```conllu # sent_id = question:physics:34-wheels-axles-ramps-and-screws:t8:o4:1 # text = The wide back makes the whole axe lighter to swing 1 The the DET DT Definite=Def|PronType=Art 3 det _ _ 2 wide wide ADJ JJ Degree=Pos 3 amod _ _ 3 back back NOUN NN Number=Sing 4 nsubj _ _ 4 makes make VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 the the DET DT Definite=Def|PronType=Art 7 det _ _ 6 whole whole ADJ JJ Degree=Pos 7 amod _ _ 7 axe axe NOUN NN Number=Sing 4 obj _ _ 8 lighter light ADJ JJR Degree=Cmp 4 xcomp _ _ 9 to to PART TO _ 10 mark _ _ 10 swing swing VERB VB VerbForm=Inf 8 xcomp _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **make** | present | the wide back | the whole axe | | | | light *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset axe=Product | | 2 | **swing** | to-infinitive | the whole axe *not said here* | | | | | | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute | **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. - ← previous: [Wheels, axles, ramps and screws, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/t7/) - next →: [Wheels, axles, ramps and screws, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/t9/) - ↑ back to [Wheels, axles, ramps and screws](https://md.mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/)