Weight Flashcards

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1
Q

Define Weight

A

The gravitational force of a planet on an object
- by this definition, it is apparent that since the gravitational force of each planet on an object is different, then the weight of an object on each planet is different

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2
Q

Equation for Weight & it unit

A

Weight (in a certain place)
= mass of object x gravity (in that place)
- W= mg
- Unit= Newton, N
- The unit for gravity is either ms (-2) (as it is actually acceleration due to gravity) or Nkg (-1)

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3
Q

Mass vs. Weight

A

•Mass- A bass quantity
Weight- A force

•Mass- measured using a scale or balance
Weight- measured using a spring balance AKA newtonmeter

•Mass- A measurement of the amt of matter in an object
Weight- the gravitational force of a planet on an object

•Mass- measured in kg
Weight- measured in N

•Mass- Does NOT change from place to place as the amt of matter in an object is INDEPENDENT on gravity
Weight- Changes from place to place as it is DEPENDENT on gravity & the gravitational force changes from place to place

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