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17 08, 2017

What is work? Physics definitions

By |2018-05-31T11:49:15-07:00August 17th, 2017|Physics|0 Comments

Ancient Egyptian cattle plowing (Louvre Museum, Paris) You might think you know what work is, like homework, or having to pick up your room, right? But to scientists, work has a more definite meaning: work is force x distance. That means that you can measure work by measuring how much force, or energy, [...]

17 08, 2017

Levers – Simple machines – Physics

By |2018-05-31T11:49:33-07:00August 17th, 2017|Physics|1 Comment

Levers: An orangutan child using a stick as a lever What is a lever? A lever is basically just a long stick that you push or pull against a fulcrum - a fixed object - to move something. A lever helps you move something heavy, or make something go fast. The earliest levers developed [...]