Mass, Weight and Density By Jack Lee

1. It is a substance's mass per unit volume.

2. Mass

2.1. It is the measure of the amount of matter in the body

2.2. SI unit: Kilogram (kg)

2.3. It is constant everywhere, including the space too.

2.4. It is measured using beam balance/ mass balance.

3. Weight

3.1. It is the amount of gravitational force acting on a body

3.2. SI unit: Newton (N)

3.2.1. It varies since it depends on the force of gravity

3.3. Measure using spring balance

3.4. Weight=Mass x Acceleration due to gravity (w=mg)

4. Density

4.1. Density=Mass/Volume

4.2. SI unit: kg/m^3

5. HHHHHHHHH