Mass vs. Weight: Real Life Examples

• Mass: Mass is a measure of the amount of matter in an object. It is a scalar quantity and is usually measured in kilograms (kg) in the International System of Units (SI).
• Weight: Weight is the force exerted on an object due to gravity. It is a vector quantity and depends on both the mass of the object and the gravitational acceleration. Weight is measured in newtons (N).

Formula:

• Mass: The formula for mass (m) is straightforward and involves no acceleration
• Weight: The formula for weight (W) involves the mass (m) of the object and the gravitational acceleration (g):
  W=m⋅g where g is approximately 9.8 m/s² on the surface of the Earth.

Real Life Examples

Example	Mass (kg)	Weight (N)	Calculations
Bag of Apples	2	19.6	Weight = 2 × Gravity (9.8 m/s² on Earth)
Book	1.5	14.7	Weight = 1.5 × Gravity (9.8 m/s² on Earth)
Person	70	686	Weight = 70 × Gravity (9.8 m/s² on Earth)
Person (on Mars)	70	(less than 686)	Weight = 70 × Gravity (lower on Mars)