Simplify the following text for a Grade 9 native English-speaking person.
Original: The amount of momentum that an object has depends on two physical quantities : the mass and the velocity of the moving object in the frame of reference .
Simplified: Because momentum is the product of the mass and the velocity of an object , that both mass and velocity affect the momentum of an object . As shown , an object with a large mass and low velocity can have the same momentum as an object with a small mass and large velocity .