--- title: Building strong things: bridges, towers and shapes — the lesson's questions with trees and pragmatics · World description: The 17 test and exam questions of lesson 86 «Building strong things: bridges, towers and shapes» of the world course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmatics. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/) [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/) / [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/) / Building strong things: bridges, tower… # Building strong things: bridges, towers and shapes The 17 questions of lesson 86 «Building strong things: bridges, towers and shapes» of the world course of Mova's primary school with their options, 93 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/world/86-building-strong-things/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t1/) — You build a tower from spaghetti and marshmallows. It keeps leaning over. What will help most? — wrong ✗ · ★★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t2/) — Why do builders of old stone churches use arches over doors and windows? — wrong ✗ · ★★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t3/) — A plank is laid across a stream and a child stands in the middle. Which is true? — wrong ✗ · ★★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t4/) — Why does a cardboard box get stronger when you add a corrugated layer, a wavy folded sheet, inside its walls? — right ✓ · ★★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t5/) — A hiker packs a rucksack. To stay steady on a narrow path, where should the heaviest things go? — wrong ✗ · ★★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t6/) — Engineers want a long, light bridge across a wide river where few supports can stand. Which kind is best? — right ✓ · ★★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t7/) — Why would glass be a poor material for the cables of a suspension bridge? — right ✓ · ★★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t8/) — A table wobbles when pushed sideways. A carpenter adds a slanted brace between a leg and the top. Why does it help? — right ✓ · ★★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t9/) — Which of these is a structure built mostly from triangles? — wrong ✗ · ★★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t10/) — why do bridges have all those triangles — right ✓ · ★★ - [t11](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t11/) — why's there steel rods inside concrete — wrong ✗ · ★★ - [t12](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t12/) — Ava says a flat sheet of paper is just as stiff as a rolled one. true? — right ✓ · ★★ - [t13](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/t13/) — my brother reckons tall towers are hardest to tip if heavy stuff's at the top. right? — right ✓ · ★★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/e1/) — Which of the following statements most accurately characterises the forces designated compression and tension? — wrong ✗ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/e2/) — Identify the principal reason for which steel bars are placed within reinforced concrete. — right ✓ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/e3/) — It is given that a square frame is readily pushed out of shape. Determine the addition by which it may be rendered rigid. — right ✓ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/e4/) — Select the response that is consistent with the established facts concerning the stability of an object. — wrong ✗ · exam - ← previous: [85. Pushes, pulls, friction and wheels](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/) - next →: [87. Electricity at home and staying safe](https://md.mova.elamur.ai/free/en/corpora/questions/world/87-electricity-at-home-and-safety/) - ↑ back to [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/)