Exam question 2 · Pushes and pulls: what makes things move and stop
It is given that two teams in a tug of war exert equal and opposite forces upon a rope. Determine the consequence for the motion of the rope.
Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: two teams, you, rope · What happens: give, exert, tug, determine, motion · To what, where: It, equal forces, war, consequence
This is exam question 2 of lesson 4 «Pushes and pulls: what makes things move and stop» 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.
The question
Sentence 1: It is given that two teams in a tug of war exert equal and opposite forces upon a rope.
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | It | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 3 given | nsubj:pass |
| 2 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 3 given | aux:pass |
| 3 | given | give | VERB | Tense=Past VerbForm=Part Voice=Pass | root | root |
| 4 | that | that | SCONJ | _ | 12 exert | mark |
| 5 | two | two | NUM | NumForm=Word NumType=Card | 6 teams | nummod |
| 6 | teams | team | NOUN | Number=Plur | 12 exert | nsubj |
| 7 | in | in | ADP | _ | 9 tug | case |
| 8 | a | a | DET | Definite=Ind PronType=Art | 9 tug | det |
| 9 | tug | tug | NOUN | Number=Sing | 6 teams | nmod |
| 10 | of | of | ADP | _ | 11 war | case |
| 11 | war | war | NOUN | Number=Sing | 9 tug | nmod |
| 12 | exert | exert | VERB | VerbForm=Inf | 3 given | advcl |
| 13 | equal | equal | ADJ | Degree=Pos | 16 forces | amod |
| 14 | and | and | CCONJ | _ | 15 opposite | cc |
| 15 | opposite | opposite | ADJ | Degree=Pos | 13 equal | conj |
| 16 | forces | force | NOUN | Number=Plur | 12 exert | obj |
| 17 | upon | upon | ADP | _ | 19 rope | case |
| 18 | a | a | DET | Definite=Ind PronType=Art | 19 rope | det |
| 19 | rope | rope | NOUN | Number=Sing | 12 exert | obl |
| 20 | . | . | PUNCT | _ | 3 given | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | give | present · passive | It | vn give-13.1-1 «NP V NP»: subject=Theme | |||||
| 2 | exert | infinitive | two teams in a tug of war | equal forces | upon a rope | vn use-105.1 «NP V NP»: agent=Agent force=Theme | |||
| 3 | tug | war | nom tug «act 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.
Sentence 2: Determine the consequence for the motion of the rope.
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Determine | determine | VERB | Mood=Imp VerbForm=Fin | root | root |
| 2 | the | the | DET | Definite=Def PronType=Art | 3 consequence | det |
| 3 | consequence | consequence | NOUN | Number=Sing | 1 Determine | obj |
| 4 | for | for | ADP | _ | 6 motion | case |
| 5 | the | the | DET | Definite=Def PronType=Art | 6 motion | det |
| 6 | motion | motion | NOUN | Number=Sing | 1 Determine | obl |
| 7 | of | of | ADP | _ | 9 rope | case |
| 8 | the | the | DET | Definite=Def PronType=Art | 9 rope | det |
| 9 | rope | rope | NOUN | Number=Sing | 6 motion | nmod |
| 10 | . | . | PUNCT | _ | 1 Determine | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | determine | imperative | you not said here | the consequence | for the motion of the rope | vn discover-84 «NP V NP»: agent=Agent consequence=Topic | |||
| 2 | motion | the rope | nom motion «communication intransitive»: of=agent |
The options
Option 1 · ← Mova's choice
The rope moves towards the weaker team
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 rope | det |
| 2 | rope | rope | NOUN | Number=Sing | 3 moves | nsubj |
| 3 | moves | move | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 4 | towards | towards | ADP | _ | 7 team | case |
| 5 | the | the | DET | Definite=Def PronType=Art | 7 team | det |
| 6 | weaker | weak | ADJ | Degree=Cmp | 7 team | amod |
| 7 | team | team | NOUN | Number=Sing | 3 moves | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | move | present | the rope | the weaker team | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme towards team=Trajectory |
Option 2
The rope moves towards the stronger team
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 rope | det |
| 2 | rope | rope | NOUN | Number=Sing | 3 moves | nsubj |
| 3 | moves | move | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 4 | towards | towards | ADP | _ | 7 team | case |
| 5 | the | the | DET | Definite=Def PronType=Art | 7 team | det |
| 6 | stronger | strong | ADJ | Degree=Cmp | 7 team | amod |
| 7 | team | team | NOUN | Number=Sing | 3 moves | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | move | present | the rope | the stronger team | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme towards team=Trajectory |
Option 3 · ✓ the right answer
The rope remains at rest
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 rope | det |
| 2 | rope | rope | NOUN | Number=Sing | 3 remains | nsubj |
| 3 | remains | remain | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 4 | at | at | ADP | _ | 5 rest | case |
| 5 | rest | rest | NOUN | Number=Sing | 3 remains | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | remain | present | the rope | rest | vn exist-47.1 «NP V PP.location»: agent=Theme at rest=Location |
Option 4
The rope is accelerated upwards
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | The | the | DET | Definite=Def PronType=Art | 2 rope | det |
| 2 | rope | rope | NOUN | Number=Sing | 4 accelerated | nsubj:pass |
| 3 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 4 accelerated | aux:pass |
| 4 | accelerated | accelerate | VERB | Tense=Past VerbForm=Part Voice=Pass | root | root |
| 5 | upwards | upwards | ADV | _ | 4 accelerated | advmod |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | accelerate | present · passive | the rope | upwards property | vn other_cos-45.4 «NP V NP.patient»: subject=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.
This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/physics/4-pushes-and-pulls-move-and-stop/e2/