Calculating Weight (OCR GCSE Physics A (Gateway Science Suite)): Flashcards

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Calculating Weight
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Relationship between weight & mass

Directly proportional

Formula for weight

W=m×gW = m \times g

Unit for weight (WW)

Newtons (N)

Unit for mass (mm)

Kilograms (kg)

Unit for gravitational field strength (gg)

Newtons per kilogram (N/kg)

Rearrange W=m×gW = m \times g to find mm

m=W÷gm = W \div g

Rearrange W=m×gW = m \times g to find gg

g=W÷mg = W \div m

Instrument to measure weight

Newton meter

What type of quantity is weight?

Force

What does mass measure?

Amount of matter in an object

Effect of gravitational field on weight

Weight changes with gravitational field strength

Effect of gravitational field on mass

Mass remains constant

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