Today we discussed the difference between mass and weight. Mass is how much matter is in an object and measured in kilograms. Weight however is force, which means it is mass multiplied by the acceleration due to gravity (on the planet where are currently standing). We solved several more force problems using Newton's second law (F=ma) as well as calculated our weight on different planets (on different planets your mass is the same but your weight will change based on the amount of gravity).
Newton's second law states that the force on an object is equal to the objects mass multiplied by its acceleration. Or more simply: F=ma. Click Here for some example problems and help solving for force. In class we added newton's second law to our notes, as well as solved several force problems and began our discussion of gravity.