## BIG IDEAS - Mass is an intrinsic property of [[Matter|matter]]. - Mass was initially described as the amount of matter. - The mass of an object does not change based on location. - The SI unit for mass is [[Kilogram|kilogram]] (kg). - Other units include gram. Two types of mass: inertial mass and gravitational mass. Mass can be experimentally defined as a measure of the body's [[Inertia|inertia]], meaning the resistance to [[Notes Vault/Physics Notes Vault/Kinematics/1D Motion/Acceleration|acceleration]] (change of velocity) when a net force is applied. >[!note] Mass vs Weight >Mass and [[Notes Vault/Physics Notes Vault/Dynamics/Weight|weight]] are not the same. Weight is a [[Force|force]] and has units of [[newton]]. ## Sources --- Return [[Home|Home]] | [[SI units]] | [[Base Units]] | [[Physical constant|Physical constants]] | [[Length]] | [[Time]]