Sebuah hidrometer ringkas diletakkan di dlm sbuah bekas yg berisi air .Dengan mnggunakan konsep fizik yg ssuai , terangkan pengubahsuaian yg perlu dilakukan kpda reka bentuk hidrometer itu supaya ia boleh digunakan untk menentukan keadaan sebuah bateri kereta dengan mudah dan selamat . [keadaan bateri bergntung kepada ketumpatanbl asid di dlmnya ] . tolong terangkan yew . soalan KBAT

1

Jawapan

2016-06-06T17:41:09+08:00
1. Small stem and long
Increase sensitivity where the scale are far apart so the small changes in density can be detected


2. Glass wall
- Do not erode and small edhesive force


3. Lead shots
- Hydrometer can stay upright


4. Large diameter of bulb
- Bigger upthrust, able to float easily , displace more liquid


5. scale can be made bigger or smaller than the density of water
- ability to measure wider range of densities of liquids *im not very sure for this option