---
title: Ascertain the unit in which forces are measured. — Pushes, pulls, friction and wheels · tree and pragmatics
description: Ascertain the unit in which forces are measured. Exam question 3 of lesson 85 «Pushes, pulls, friction and wheels» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Exam question 3 · Pushes, pulls, friction and wheels

<!-- .ven lang=en -->
Ascertain the unit in which forces are measured.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you · **What happens:** ascertain, measure · **To what, where:** unit, forces

<!-- .vabout -->
This is exam question 3 of lesson 85 «Pushes, pulls, friction and wheels» of the world 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/world/85-pushes-pulls-friction-wheels/#e3).

## The question {#question}

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:e3:1
# text = Ascertain the unit in which forces are measured.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	unit	unit	NOUN	NN	Number=Sing	1	obj	_	_
4	in	in	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	8	obl	_	_
6	forces	force	NOUN	NNS	Number=Plur	8	nsubj:pass	_	_
7	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
8	measured	measure	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl:relcl	_	SpaceAfter=No
9	.	.	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 unit |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent unit=Topic |
| 2 | **measure** | present · passive |  | forces |  | the unit |  |  | vn register-54.1-2-1 «NP V NP.value»: subject=Value |

<!-- .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 {#o1}

<!-- .ven lang=en -->
Kilograms

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:e3:o1:1
# text = Kilograms
1	Kilograms	kilogram	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Newtons

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:e3:o2:1
# text = Newtons
1	Newtons	newton	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
Degrees

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:e3:o3:1
# text = Degrees
1	Degrees	degree	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
Metres

```conllu
# sent_id = question:world:85-pushes-pulls-friction-wheels:e3:o4:1
# text = Metres
1	Metres	metre	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .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 -->

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- ← previous: [Pushes, pulls, friction and wheels, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/e2/)
- next →: [Pushes, pulls, friction and wheels, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/e4/)
- ↑ back to [Pushes, pulls, friction and wheels](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/)

