# Science Chapter 11 Lesson 2

## Newton's Laws of Motion

#1: An object at rest tends to stay at rest while an object in motion tends to stay in motion unless acted upon by an unbalenced force. That means that if you leave a cookie on a plate  and no one eats it it will stay there.
#2: An objects momentum equals the objects mass and the amount of force being applied to it. This means it takes more force to throw a 6th grade science book the same distance as a pencil.
#3: For every action there is an equal and opposite reaction. this means that if I run into someone they would fall the opposite direction I fall.

## Weight

Weight is the force of gravity pulling down on an object. I would weigh less on the Moon than I do on Earth because Earth has more gravity.

## Momentum

Momentum is a combonation of mass and the speed of an object. This means that if I sprint as hard as I can I can't stop as easily as if I were walking.

He will stop slower than if he were walking.

## Gravity

Gravity is the force that pulls objects to Earth. So if I throw a book up in the air it will fall to the ground.
If I drop this from the top of a building it will fall to the ground.