---
title: In which device is electricity mainly changed into movement? — Electricity — circuits, switches and s… · tree and pragmatics
description: In which device is electricity mainly changed into movement? Test 8 · ★★ of lesson 55 «Electricity — circuits, switches and safety» 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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# Test 8 · ★★ · Electricity — circuits, switches and safety

<!-- .ven lang=en -->
In which device is electricity mainly changed into movement?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** device electricity · **What happens:** be, change · **To what, where:** device electricity, movement

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This is test 8 · ★★ of lesson 55 «Electricity — circuits, switches and safety» of the world 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](https://md.mova.elamur.ai/free/en/school-run/world/55-electricity/#t8).

## The question {#question}

```conllu
# sent_id = question:world:55-electricity:t8:1
# text = In which device is electricity mainly changed into movement?
1	In	in	ADP	IN	_	3	case	_	_
2	which	which	DET	WDT	PronType=Int	3	det	_	_
3	device	device	NOUN	NN	Number=Sing	5	compound	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	electricity	electricity	NOUN	NN	Number=Sing	7	nsubj	_	_
6	mainly	mainly	ADV	RB	_	7	advmod	_	_
7	changed	change	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
8	into	into	ADP	IN	_	9	case	_	_
9	movement	movement	NOUN	NN	Number=Sing	7	obl	_	SpaceAfter=No
10	?	?	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present |  | device electricity |  |  |  |  | tree rules |
| 2 | **change** | past | device electricity |  |  |  |  | into movement *result*; mainly *property* | vn turn-26.6.1-1 «NP.patient V PP.result»: agent=Patient into movement=Result |

<!-- .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 -->
A light bulb

```conllu
# sent_id = question:world:55-electricity:t8:o1:1
# text = A light bulb
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	light	light	NOUN	NN	Number=Sing	3	compound	_	_
3	bulb	bulb	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 heater

```conllu
# sent_id = question:world:55-electricity:t8:o2:1
# text = A heater
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	heater	heater	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
An electric fan

```conllu
# sent_id = question:world:55-electricity:t8:o3:1
# text = An electric fan
1	An	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	electric	electric	ADJ	JJ	Degree=Pos	3	amod	_	_
3	fan	fan	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
A toaster

```conllu
# sent_id = question:world:55-electricity:t8:o4:1
# text = A toaster
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	toaster	toaster	NOUN	NN	Number=Sing	0	root	_	_
```

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

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**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.

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