1. Weight
Chapter 41

2. Weight The weight of an object is the force of gravity acting on it.
Weight is a force and therefore is measured in Newtons (N)
Weight (N) = Mass (kg) x 10N/kg(gravity)

3. Weight Example A boy has a mass of 60kg, what is his weight on earth.
Weight (N) = Mass (kg) x 10N/kg(gravity)
Weight (N) = 60kg x 10N/kg
Weight (N) = 600N

4. Weight Example 2
A mobile phone has a mass of 80g, find its weight on earth.
Weight (N) = Mass (kg) x 10N/kg(gravity)
Convert g to kg divide by 1000
80g/1000 = 0.08kg
Weight (N) = 0.08 x 10N/kg
Weight (N) = 0.8N

5. Weight vs Mass Weight Mass Measured in Newtons (N)
Mass is measured in kilograms.
Weight depends on where you are.
Mass is fixed
Weight is a force
Mass is a fixed property

6. Weight vs Mass The mass of an object is the amount of matter in it.
The weight of an object is the force of gravity acting on it.