Chapter 11 Lesson 2
Science
Momentum
The combination of the mass and the speed of an object is momentum. A baseball has more momentum than a tennnis ball traveling at the same speed because the baseball has more mass. A tennis ball can have more momentum than the baseball if the tennis ball's speed is great enough.
Newton's First Law of Motion
An object in motion will remain in motion, and an object at rest tends to stay at rest unless something moves it.
Newton's Second Law of Motion
Acceleration depends on the objects mass and the amount of net force applied to it.
Newton's Third Law Of Motion
For every action force, there is an equal and opposite reaction force.
Weightlessness
Weightlessness is the state of being without detectable weight.