Gravity, weight and mass (AQA GCSE Physics Combined Science): Flashcards
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Definition of weight
Definition of weight
A force pulling objects towards the centre of a planet/moon
Unit for weight
Unit for weight
Newtons (N)
Definition of mass
Definition of mass
Amount of matter in an object
Unit for mass
Unit for mass
Kilograms (kg)
Does mass change with location?
Does mass change with location?
No, never changes
Equation linking weight and mass
Equation linking weight and mass
What represents
What represents
Gravitational field strength
value on Earth
value on Earth
N/kg
value on Moon
value on Moon
N/kg
Mass-weight relationship
Mass-weight relationship
Directly proportional
Instrument measuring weight
Instrument measuring weight
Spring balance (newtonmeter)
Spring balance unit
Spring balance unit
Newtons (N)