---
title: Ascertain the trajectory of a ball swung upon a cord in a circle at… — The Moon, the planets and the pull tha… · tree and pragmatics
description: Ascertain the trajectory of a ball swung upon a cord in a circle at the instant at which the cord is released. Exam question 4 of lesson 2 «The Moon, the planets and the pull that holds them» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and 
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/physics/2-the-moon-the-planets-and-the-pull/e4/)

<!-- crumbs -->
[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/) / [The Moon, the planets and the pull tha…](https://md.mova.elamur.ai/free/en/corpora/questions/physics/2-the-moon-the-planets-and-the-pull/) / e4

# Exam question 4 · The Moon, the planets and the pull that holds them

<!-- .ven lang=en -->
Ascertain the trajectory of a ball swung upon a cord in a circle at the instant at which the cord is released.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you · **What happens:** ascertain, swing, release · **To what, where:** trajectory, ball, cord, instant

<!-- .vabout -->
This is exam question 4 of lesson 2 «The Moon, the planets and the pull that holds them» 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/2-the-moon-the-planets-and-the-pull/#e4).

## The question {#question}

```conllu
# sent_id = question:physics:2-the-moon-the-planets-and-the-pull:e4:1
# text = Ascertain the trajectory of a ball swung upon a cord in a circle at the instant at which the cord is released.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	trajectory	trajectory	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	ball	ball	NOUN	NN	Number=Sing	3	nmod	_	_
7	swung	swing	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	acl	_	_
8	upon	upon	ADP	IN	_	10	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	cord	cord	NOUN	NN	Number=Sing	7	obl	_	_
11	in	in	ADP	IN	_	13	case	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	circle	circle	NOUN	NN	Number=Sing	10	nmod	_	_
14	at	at	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	instant	instant	NOUN	NN	Number=Sing	13	nmod	_	_
17	at	at	ADP	IN	_	18	case	_	_
18	which	which	PRON	WDT	PronType=Rel	22	obl	_	_
19	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
20	cord	cord	NOUN	NN	Number=Sing	22	nsubj:pass	_	_
21	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	aux:pass	_	_
22	released	release	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	16	acl:relcl	_	SpaceAfter=No
23	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the trajectory of a ball |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent trajectory=Topic |
| 2 | **swing** | participle |  | a ball *not said here* |  | a cord in a circle at the instant |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme upon cord=Trajectory |
| 3 | **release** | present · passive |  | the cord |  | the instant |  |  | vn free-10.6.3-1 «NP V NP S\_ING»: subject=Source |

<!-- .note -->
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}

<!-- .ven lang=en -->
A straight line

```conllu
# sent_id = question:physics:2-the-moon-the-planets-and-the-pull:e4:o1:1
# text = A straight line
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	straight	straight	ADJ	JJ	Degree=Pos	3	amod	_	_
3	line	line	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
A continuation of the circle

```conllu
# sent_id = question:physics:2-the-moon-the-planets-and-the-pull:e4:o2:1
# text = A continuation of the circle
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	continuation	continuation	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	circle	circle	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **continue** |  |  | the circle |  |  |  |  | nom continuation «act transitive»: of=patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
A vertical descent to the ground

```conllu
# sent_id = question:physics:2-the-moon-the-planets-and-the-pull:e4:o3:1
# text = A vertical descent to the ground
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	vertical	vertical	ADJ	JJ	Degree=Pos	3	amod	_	_
3	descent	descent	NOUN	NN	Number=Sing	0	root	_	_
4	to	to	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	ground	ground	NOUN	NN	Number=Sing	3	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
A return towards the hand

```conllu
# sent_id = question:physics:2-the-moon-the-planets-and-the-pull:e4:o4:1
# text = A return towards the hand
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	return	return	NOUN	NN	Number=Sing	0	root	_	_
3	towards	towards	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	hand	hand	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

<!-- div src -->

**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.

<!-- /div -->

<!-- pn -->
- ← previous: [The Moon, the planets and the pull tha…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/physics/2-the-moon-the-planets-and-the-pull/e3/)
- next →: [Parachutes, skydivers and falling safely, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/physics/3-parachutes-and-falling-safely/t1/)
- ↑ back to [The Moon, the planets and the pull that holds them](https://md.mova.elamur.ai/free/en/corpora/questions/physics/2-the-moon-the-planets-and-the-pull/)