Science Concepts

Speeding into Science

Momentum & Acceleration

Momentum is mass and speed, it is not the same as acceleration. Acceleration is the rate that velocity changes over a period of time.

Newton's Laws of Motion


Weightlessness is being at the state that you feel like you have no weight. A person that feels weightlessness might be an astronaut. If you have gone on a roller coaster with a hill then a large drop you felt weightlessness.


Gravity is the Earths pull on us and the objects around us. On the Moon our weight would be one sixth of what we do now.