Reply as if responding to what she wrote:

Chapter three was about force and motion. Force is a vector quantity that pushes or pulls on an object with mass. It causes it to change its velocity or acceleration. Newton's First Law of Motion states that an object at rest stays at rest, and an object in motion stays in motion at a constant speed and in a straight line unless acted on by an unbalanced force. An unbalanced force is when two forces act on an object, and the forces are different; one is greater than the other. Newton's Second Law of Motion is equal to the rate of change of momentum. For a constant mass, force equals the mass times the acceleration. Newton's Second Law of Motion compares the force required to move objects of varying masses. Momentum is the quantity of motion of a moving body as a product of its mass and velocity. Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. Action and reaction refer to forces. For example, if object 1 exerts a force on object 2, then object 2 exerts an equal force on object 1. We also learned about Newton's Law of Gravitation. This law states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. An example would be the force that causes a ball you throw in the air to come back down or the force that causes your car to coast downhill even though you aren't using the gas pedal. The concepts we learned about his week are easy to understand. As I stated before, the formulas and figuring out the math have slowed me down, but I look forward to moving ahead with this class.