Test 10 · Magnets: pulling and pushing without touching
What would happen to a toy car's motor if there were no magnets inside it?
Mova's choice: option 3 · The right answer: option 1 · wrong ✗ · Who acts: magnets · What happens: happen, be
This is test 10 of lesson 29 «Magnets: pulling and pushing without touching» 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.
The question
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | What | what | PRON | PronType=Int | 3 happen | nsubj |
| 2 | would | would | AUX | VerbForm=Fin | 3 happen | aux |
| 3 | happen | happen | VERB | VerbForm=Inf | root | root |
| 4 | to | to | ADP | _ | 9 motor | case |
| 5 | a | a | DET | Definite=Ind PronType=Art | 7 car | det |
| 6 | toy | toy | NOUN | Number=Sing | 7 car | compound |
| 7 | car | car | NOUN | Number=Sing | 9 motor | nmod:poss |
| 8 | 's | 's | PART | _ | 7 car | case |
| 9 | motor | motor | NOUN | Number=Sing | 3 happen | obl |
| 10 | if | if | SCONJ | _ | 12 were | mark |
| 11 | there | there | PRON | PronType=Dem | 12 were | expl |
| 12 | were | be | VERB | Mood=Ind Number=Plur Person=3 Tense=Past VerbForm=Fin | 3 happen | advcl |
| 13 | no | no | DET | PronType=Neg | 14 magnets | det |
| 14 | magnets | magnet | NOUN | Number=Plur | 12 were | nsubj |
| 15 | inside | inside | ADP | _ | 16 it | case |
| 16 | it | it | PRON | Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs | 14 magnets | nmod |
| 17 | ? | ? | PUNCT | _ | 3 happen | punct |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | happen | would | to a toy car's motor | vn occur-48.3-1 «NP V»: agent=Theme | |||||
| 2 | be a condition, not said to happen | past | no magnets inside motor | there | vn exist-47.1 «NP 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.
The options
Option 1 · ✓ the right answer
It would not spin
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 | 4 spin | nsubj |
| 2 | would | would | AUX | VerbForm=Fin | 4 spin | aux |
| 3 | not | not | PART | Polarity=Neg | 4 spin | advmod |
| 4 | spin | spin | VERB | VerbForm=Inf | root | root |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | not spin | would | It | vn roll-51.3.1 «NP.theme V»: agent=Theme |
Option 2
It would turn into a magnet
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 turn | nsubj |
| 2 | would | would | AUX | VerbForm=Fin | 3 turn | aux |
| 3 | turn | turn | VERB | VerbForm=Inf | root | root |
| 4 | into | into | ADP | _ | 6 magnet | case |
| 5 | a | a | DET | Definite=Ind PronType=Art | 6 magnet | det |
| 6 | magnet | magnet | NOUN | Number=Sing | 3 turn | obl |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | turn | would | It | a magnet | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme into magnet=Trajectory |
Option 3 · ← Mova's choice
It would spin twice as fast
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 spin | nsubj |
| 2 | would | would | AUX | VerbForm=Fin | 3 spin | aux |
| 3 | spin | spin | VERB | VerbForm=Inf | root | root |
| 4 | twice | twice | ADV | NumForm=Word NumType=Mult | 3 spin | advmod |
| 5 | as | as | ADV | _ | 6 fast | advmod |
| 6 | fast | fast | ADV | Degree=Pos | 3 spin | advmod |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | spin | would | It | fast, twice property | vn roll-51.3.1 «NP.theme V»: agent=Theme |
Option 4
It would spin backwards
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 spin | nsubj |
| 2 | would | would | AUX | VerbForm=Fin | 3 spin | aux |
| 3 | spin | spin | VERB | VerbForm=Inf | root | root |
| 4 | backwards | backwards | ADV | _ | 3 spin | advmod |
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | spin | would | It | backwards property | vn roll-51.3.1 «NP.theme V»: agent=Theme |
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/29-magnets-pulling-and-pushing-without-touching/t10/