Pocket Genius Science: Energy and forces

Facts At Your Fingertips: Energy and forces

Everything in the universe is constantly affected by energy and forces. A roller coaster is a good example of energy and forces in action.

Fuel provides the energy needed to generate the force that pulls the roller coaster to the top of the slope.

The stored potential energy the roller coaster has at the top is transferred to kinetic (movement) energy by the force of gravity as it runs downhill.


Computers use electrical energy to perform a range of tasks and to generate light.

When you touch the screen of a tablet computer, you are applying a force to it.