--- title: Pushes, pulls, friction and wheels — the lesson's questions with trees and pragmatics · World description: The 17 test and exam questions of lesson 85 «Pushes, pulls, friction and wheels» 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/85-pushes-pulls-friction-wheels/) [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/) / Pushes, pulls, friction and wheels # Pushes, pulls, friction and wheels The 17 questions of lesson 85 «Pushes, pulls, friction and wheels» of the world course of Mova's primary school with their options, 92 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/85-pushes-pulls-friction-wheels/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t1/) — A car moves along a straight road at a steady speed. Which is true? — wrong ✗ · ★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t2/) — What would happen if there were no friction at all? — wrong ✗ · ★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t3/) — Ancient builders moved huge stones by rolling them on logs. Why did this help? — right ✓ · ★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t4/) — A cyclist squeezes the brakes. How do the brakes stop the bike? — wrong ✗ · ★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t5/) — Which is a case where we want less friction? — right ✓ · ★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t6/) — A truck and a bicycle are moving at the same speed. Which needs a bigger force to stop? — wrong ✗ · ★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t7/) — A toy car is pushed on smooth tiles and on thick carpet with the same push. Where does it roll further? — wrong ✗ · ★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t8/) — Why are worn, smooth tyres dangerous on a rainy day? — wrong ✗ · ★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t9/) — You hang a heavier bag on a forcemeter. What happens? — right ✓ · ★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t10/) — why's oil put on a squeaky bike chain — right ✓ · ★ - [t11](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t11/) — why'd i fly forward when the bus braked hard — right ✓ · ★ - [t12](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t12/) — Leo says a moving thing just stops by itself if nothing pushes it. true? — right ✓ · ★ - [t13](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/t13/) — my sister reckons friction is always bad. right? — wrong ✗ · ★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/e1/) — Which of the following statements most accurately characterises balanced forces? — right ✓ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/e2/) — It is given that a car stops suddenly. Identify the principal reason for which seat belts are required. — right ✓ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/e3/) — Ascertain the unit in which forces are measured. — wrong ✗ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/world/85-pushes-pulls-friction-wheels/e4/) — Select the response that is consistent with the established facts concerning the grooves in the tyres of a vehicle. — right ✓ · exam - ← previous: [84. Mirrors, shadows and colours](https://md.mova.elamur.ai/free/en/corpora/questions/world/84-mirrors-shadows-colours/) - next →: [86. Building strong things: bridges, towers and shapes](https://md.mova.elamur.ai/free/en/corpora/questions/world/86-building-strong-things/) - ↑ back to [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/)