--- title: Pushes and pulls all around us — a lesson of Mova's school · trees and pragmatics description: «Pushes and pulls all around us», a lesson of the physics course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Every move you make is a push on something else that pushes you back: you walk forward by pushing the ground backwards. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / Pushes and pulls all around us # Pushes and pulls all around us Lesson 5 of the physics course of Mova's primary school: 16 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/physics/5-pushes-and-pulls-all-around-us/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/0/) — Every move you make is a push on something else that pushes you back: you walk forward by pushing the ground backwards. - [1](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/1/) — A swimmer pushes water back and the water pushes the swimmer forward; a horse pushes the road back with its hooves and the road pushes it on. - [2](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/2/) — Springy things store a push: a stretched rubber band or a trampoline springs back and gives the push back, while a lump of clay just goes splat. - [3](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/3/) — Forces do not only change speed: squeeze a sponge and you change its shape. - [4](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/4/) — Where you push matters too: a door opens easily when you push near the handle, far from the hinges, and hardly at all near them. - [5](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/5/) — A swimmer's hands and feet push water backwards, and the water pushes the swimmer forward; rowing and paddling work the same way. - [6](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/6/) — A duck's webbed feet push more water than plain toes would. - [7](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/7/) — When you walk, your shoe pushes the ground backwards and the ground pushes you forward, which needs grip; on wet ice your foot just slides back. - [8](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/8/) — Stretching a rubber band stores a pull, and it springs back when let go; never fire anything at people's faces, as even a paper pellet can hurt an eye. - [9](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/9/) — A trampoline's springs and mat stretch as you land and spring back, and most trampoline injuries happen when two people bounce at once. - [10](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/10/) — A bouncy ball squashes and springs back, while clay squashes and stays squashed, warming a little. - [12](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/12/) — Wind pushes on a sail, and the bigger the sail and the stronger the wind, the bigger the push; sailors can even sail partly against the wind by angling the sail. - [13](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/13/) — A horse pulls a cart because the ground pushes the horse forward harder than the cart holds it back, so on a slippery road it struggles. - [14](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/14/) — A force can change something's shape as well as its speed, as when you squeeze a sponge; let go, and the sponge springs back and sucks air back into its holes. - [15](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/15/) — A push far from a door's hinges turns it much more easily, so handles are put on the far side from the hinges. - [16](https://md.mova.elamur.ai/free/en/corpora/school/physics/5-pushes-and-pulls-all-around-us/16/) — A heavy, fast bowling ball passes its push on to the pins, and the pins push each other; a light ball at the same speed would leave most pins standing. - ← previous: [Pushes and pulls: what makes things move and stop](https://md.mova.elamur.ai/free/en/corpora/school/physics/4-pushes-and-pulls-move-and-stop/) - next →: [Friction: the grip that stops and helps](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/) - ↑ back to [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/)