GED Academy Links

Read about author and physicist Alan Lightman, who combines science and writing… (more…)

Momentum is the tendency to keep moving once you’re going. So, build up some momentum in your physics learning, and keep on going… (more…)

Things start to really get interesting when forces start to work together… or against each other. That’s how things happen (and get stopped) in the real world. Learn more about balanced and unbalanced forces… (more…)

When something’s stopped, it’s not going to move unless something moves it! That’s inertia… and once something gets going, it’s going to keep on going until something stops it. It’s all physics! Learn more about inertia… (more…)

Physics is hard enough when things go at one speed… what about while they’re speeding up and slowing down? Learn more about the important physics concept of acceleration… (more…)

Gravity’s all around us everyday, and we don’t think a lot about it! It’s what keeps our feet on the Earth… Explore your world by learning more about gravity… (more…)

When two things rub against each other, that causes friction. It’s why we can’t slide across asphalt like we slide across ice. Learn more about this important force… (more…)

A force is a push or a pull… it’s what makes something go–change speed, change direction, start when it’s stopped or stop when it’s going. Learn more about the basics of forces… (more…)

We all do work… even lifting a pencil is work! It expends energy… and it changes matter. So, what really is work, from a physics point of view? Read more… (more…)

So… energy allows us to do all kinds of things. How does it get from one place to another? How does it move? Learn about energy transfer… (more…)