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Are weight and mass the same?
No
Do you weigh the same on Mars?
No
Is the gravity or gravitational force same on moon and earth?
No
Units of mass
kilogram or kg
Units of weight
Newton ( N)
How do you measure mass?
using a balance
How do you measure weight?
using a spring scale
What is mass?
It is the amount of matter in an object.
What is weight ?
It is the measure of gravitational force on an object.
Sara says her weight is 35 kg . Do you think she is using the correct units?
No, her mass is 35 kg.
