--- title: Identify the principal advantage of a wheel over a sledge for the co… — Living with friction: oil, wheels and… · tree and pragmatics description: Identify the principal advantage of a wheel over a sledge for the conveyance of heavy loads. Exam question 2 of lesson 7 «Living with friction: oil, wheels and grip» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's cho --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/physics/7-living-with-friction/e2/) [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/) / [Living with friction: oil, wheels and…](https://md.mova.elamur.ai/free/en/corpora/questions/physics/7-living-with-friction/) / e2 # Exam question 2 · Living with friction: oil, wheels and grip Identify the principal advantage of a wheel over a sledge for the conveyance of heavy loads. **Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** identify, convey · **To what, where:** principal advantage, sledge, heavy loads This is exam question 2 of lesson 7 «Living with friction: oil, wheels and grip» of the physics course of Mova's primary school, asked in stiff, formal language. 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/7-living-with-friction/#e2). ## The question {#question} ```conllu # sent_id = question:physics:7-living-with-friction:e2:1 # text = Identify the principal advantage of a wheel over a sledge for the conveyance of heavy loads. 1 Identify identify VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 4 det _ _ 3 principal principal ADJ JJ Degree=Pos 4 amod _ _ 4 advantage advantage NOUN NN Number=Sing 1 obj _ _ 5 of of ADP IN _ 7 case _ _ 6 a a DET DT Definite=Ind|PronType=Art 7 det _ _ 7 wheel wheel NOUN NN Number=Sing 4 nmod _ _ 8 over over ADP IN _ 10 case _ _ 9 a a DET DT Definite=Ind|PronType=Art 10 det _ _ 10 sledge sledge NOUN NN Number=Sing 1 obl _ _ 11 for for ADP IN _ 13 case _ _ 12 the the DET DT Definite=Def|PronType=Art 13 det _ _ 13 conveyance conveyance NOUN NN Number=Sing 10 nmod _ _ 14 of of ADP IN _ 16 case _ _ 15 heavy heavy ADJ JJ Degree=Pos 16 amod _ _ 16 loads load NOUN NNS Number=Plur 13 nmod _ SpaceAfter=No 17 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **identify** | imperative | you *not said here* | the principal advantage of a wheel | | a sledge for the conveyance of heavy loads | | | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent advantage=Theme | | 2 | **convey** | | | heavy loads | | | | | nom conveyance «communication transitive»: of=patient | 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 {#o1} Sliding occasions less friction than rolling ```conllu # sent_id = question:physics:7-living-with-friction:e2:o1:1 # text = Sliding occasions less friction than rolling 1 Sliding slide VERB VBG VerbForm=Ger 4 csubj _ _ 2 occasions occasion NOUN NNS Number=Plur 1 obj _ _ 3 less less ADJ JJR Degree=Cmp 4 amod _ _ 4 friction friction NOUN NN Number=Sing 0 root _ _ 5 than than SCONJ IN _ 6 mark _ _ 6 rolling roll VERB VBG VerbForm=Ger 4 acl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **slide** | gerund | | occasions | | | | | vn run-51.3.2-2 «NP V NP»: agent=Agent occasion=Agent | | 2 | **roll** | gerund | less friction *not said here* | | | | | | vn run-51.3.2-2 «NP V»: agent=Theme | ### Option 2 {#o2} A wheel eliminates the effect of gravity ```conllu # sent_id = question:physics:7-living-with-friction:e2:o2:1 # text = A wheel eliminates the effect of gravity 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 wheel wheel NOUN NN Number=Sing 3 nsubj _ _ 3 eliminates eliminate VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 the the DET DT Definite=Def|PronType=Art 5 det _ _ 5 effect effect NOUN NN Number=Sing 3 obj _ _ 6 of of ADP IN _ 7 case _ _ 7 gravity gravity NOUN NN Number=Sing 5 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **eliminate** | present | a wheel | the effect of gravity | | | | | vn murder-42.1 «NP V NP»: agent=Agent effect=Patient | | 2 | **effect** | | | gravity | | | | | nom effect «phenomenon transitive»: of=patient | ### Option 3 · ✓ the right answer {#o3} Rolling occasions far less friction than sliding ```conllu # sent_id = question:physics:7-living-with-friction:e2:o3:1 # text = Rolling occasions far less friction than sliding 1 Rolling roll VERB VBG VerbForm=Ger 5 csubj _ _ 2 occasions occasion NOUN NNS Number=Plur 1 obj _ _ 3 far far ADV RB Degree=Pos 4 advmod _ _ 4 less less ADJ JJR Degree=Cmp 5 amod _ _ 5 friction friction NOUN NN Number=Sing 0 root _ _ 6 than than SCONJ IN _ 7 mark _ _ 7 sliding slide VERB VBG VerbForm=Ger 5 acl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **roll** | gerund | | occasions | | | | | vn run-51.3.2-2 «NP V NP»: agent=Agent occasion=Agent | | 2 | **slide** | gerund | less friction *not said here* | | | | | | vn run-51.3.2-2 «NP V»: agent=Theme | ### Option 4 {#o4} A wheel diminishes the weight of the load considerably ```conllu # sent_id = question:physics:7-living-with-friction:e2:o4:1 # text = A wheel diminishes the weight of the load considerably 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 wheel wheel NOUN NN Number=Sing 3 nsubj _ _ 3 diminishes diminish VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 the the DET DT Definite=Def|PronType=Art 5 det _ _ 5 weight weight NOUN NN Number=Sing 3 obj _ _ 6 of of ADP IN _ 8 case _ _ 7 the the DET DT Definite=Def|PronType=Art 8 det _ _ 8 load load NOUN NN Number=Sing 5 nmod _ _ 9 considerably considerably ADV RB _ 3 advmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **diminish** | present | a wheel | the weight of the load | | | | considerably *property* | vn caused\_calibratable\_cos-45.6.2-1 «NP V NP.patient»: agent=Causer weight=Patient | **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: [Living with friction: oil, wheels and…, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/physics/7-living-with-friction/e1/) - next →: [Living with friction: oil, wheels and…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/physics/7-living-with-friction/e3/) - ↑ back to [Living with friction: oil, wheels and grip](https://md.mova.elamur.ai/free/en/corpora/questions/physics/7-living-with-friction/)