section 1- forces and motion formulae

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  • Created by: Iqra.B
  • Created on: 20-12-14 12:07
Formula for speed
average speed = distance moved / time taken
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Formula for acceleration
acceleration = change in velocity / time taken
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formula regarding weight, mass and gravity
weight = mass x gravitational field strength (W = mXg)
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formula regarding resultant force
f = ma (resultant force = mass x acceleration)
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formula for momentum
Momentum(Kg m/s) = Mass(Kg)x Velocity(m/s)
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formula for momentum change
Force acting (N) = Change in momentum (kg m/s) / Time taken (s)
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formula for moment
MOMENT (Nm) = FORCE (N) x perpendicular DISTANCE (m) between line of action and pivot
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Principle of moment (if object is balanced)
Total Anticlockwise Moments = Total Clockwise Moments
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Principle of moment (if object is unbalanced)
If the Total Anticlockwise Moments do not equal the Total Clockwise Moments, there will be a Resultant Moment
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Formula for the speed of an orbit
orbital speed = 2 x π x orbital radius / Time period (v = 2πr /t)
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Other cards in this set

Card 2

Front

Formula for acceleration

Back

acceleration = change in velocity / time taken

Card 3

Front

formula regarding weight, mass and gravity

Back

Preview of the front of card 3

Card 4

Front

formula regarding resultant force

Back

Preview of the front of card 4

Card 5

Front

formula for momentum

Back

Preview of the front of card 5
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