Mass and weight are different properties of objects. Mass is a measure of the amount of matter in an object and remains constant wherever it is located, while weight is the gravitational force acting on an object which can change depending on location and is measured in Newtons. The relationship between mass and weight is that an object's weight equals its mass multiplied by the local gravitational acceleration.

1. Mass vs. Weight

2. Mass & Weight are NOT the same

3. Mass – amount of “stuff” (matter) in the object

4. Weight – size of gravitational force acting on the object

5. Mass Weight is measured in kilograms always remains the same is closely related to inertia can NOT be measured directly is measured in Newtons can change with location is closely related to gravity can be measured directly using a scale

6. Relationship between Mass & Weight Weight = mass x g (near the surface of Earth g = 9.81 m/s 2 ) Near the surface of Earth your weight is 10 times larger than your mass.