265 Views December 12, 2020 Be first to comment
Chemistry, industry and the environment A chemical industry is one that uses chemistry to make chemicals from other substances (raw materials). Each of these basic industrial materials is produced…
267 Views December 12, 2020 Be first to comment
Dams and energy production What is a dam? A dam is a man made structure built across a river. Most dams are built to control river flow, improve navigation,…
269 Views December 12, 2020 Be first to comment
Elastic properties of solids Hooke’s law: states that provided the elastic limit is not exceeded, the extension, e, in an elastic material (e.g. wire) is proportional to the load…
268 Views December 12, 2020 Be first to comment
Electric field I: charges (A) Electric force and Coulomb’s law F= KeQ1Q2 / d2 Where Ke is a proportionality constant and is written as 1/4π£0 where £0 is called…
269 Views December 12, 2020 Be first to comment
Electric field II: Current Electricity (A) Electric current A current is any motion of charge from one point to another in conducting materials. Current is donated by I, therefore…
