the product of the mass and velocity.An example a heavy truck moving fast has a large momentum. This rollorcoster is an exaple of momentum
Weight is the force of gravity. Weight helps you stay on the ground if there was no weight then you would be floting in space.Did you know that you that your weight 6 times more then you have on the moon its like CRAZY!
When you do not have any Gravity or weight that on you. That means you are weightlessness but gravity stills pulls you down to toword the center of the earth.
If you are holding a baseball and you want to how much matter in it that is mass. Mass can take up a lot of things examples bedroom,bed and even youself! And that is Mass.