---
title: Kai's jar lid won't come off. Which simple machine is the lid? — Wheels, axles, ramps and screws · tree and pragmatics
description: Kai's jar lid won't come off. Which simple machine is the lid? Test 9 · ★ of lesson 34 «Wheels, axles, ramps and screws» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 9 · ★ · Wheels, axles, ramps and screws

<!-- .ven lang=en -->
Kai's jar lid won't come off. Which simple machine is the lid?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** jar lid, simple machine · **What happens:** not come off, be · **To what, where:** lid

<!-- .vabout -->
This is test 9 · ★ of lesson 34 «Wheels, axles, ramps and screws» 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](https://md.mova.elamur.ai/free/en/school-run/physics/34-wheels-axles-ramps-and-screws/#t9).

## The question {#question}

<!-- .note -->
*Sentence 1:* Kai's jar lid won't come off.

```conllu
# sent_id = question:physics:34-wheels-axles-ramps-and-screws:t9:1
# text = Kai's jar lid won't come off.
1	Kai	Kai	PROPN	NNP	Number=Sing	4	nmod:poss	_	SpaceAfter=No
2	's	's	PART	POS	_	1	case	_	_
3	jar	jar	NOUN	NN	Number=Sing	4	compound	_	_
4	lid	lid	NOUN	NN	Number=Sing	7	nsubj	_	_
5	wo	will	AUX	MD	VerbForm=Fin	7	aux	_	SpaceAfter=No
6	n't	not	PART	RB	Polarity=Neg	7	advmod	_	_
7	come	come	VERB	VB	VerbForm=Inf	0	root	_	_
8	off	off	ADP	RP	_	7	compound:prt	_	SpaceAfter=No
9	.	.	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **come off** | future | Kai's jar lid |  |  |  |  |  | vn occur-48.3-2 «NP V ADV»: agent=Theme |

<!-- .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.

<!-- .note -->
*Sentence 2:* Which simple machine is the lid?

```conllu
# sent_id = question:physics:34-wheels-axles-ramps-and-screws:t9:2
# text = Which simple machine is the lid?
1	Which	which	DET	WDT	PronType=Int	3	det	_	_
2	simple	simple	ADJ	JJ	Degree=Pos	3	amod	_	_
3	machine	machine	NOUN	NN	Number=Sing	6	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	lid	lid	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
7	?	?	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | which simple machine | the lid |  |  |  |  | tree rules |

## The options {#options}

### Option 1 {#o1}

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

```conllu
# sent_id = question:physics:34-wheels-axles-ramps-and-screws:t9:o1:1
# text = A lever
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	lever	lever	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 wedge

```conllu
# sent_id = question:physics:34-wheels-axles-ramps-and-screws:t9:o2:1
# text = A wedge
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	wedge	wedge	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 3 {#o3}

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

```conllu
# sent_id = question:physics:34-wheels-axles-ramps-and-screws:t9:o3:1
# text = A pulley
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	pulley	pulley	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

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

```conllu
# sent_id = question:physics:34-wheels-axles-ramps-and-screws:t9:o4:1
# text = A screw
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	screw	screw	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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- next →: [Wheels, axles, ramps and screws, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/t10/)
- ↑ back to [Wheels, axles, ramps and screws](https://md.mova.elamur.ai/free/en/corpora/questions/physics/34-wheels-axles-ramps-and-screws/)