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P2.1.5 Forces and elasticity

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Paul Sheffield

on 11 November 2013

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Transcript of P2.1.5 Forces and elasticity

P2.2.1 Forces and Energy
Work done

Calculating the spring constant
F = K x E
What is the extension of a spring with a spring constant of 30. When a force of 10 N is applied
Make up 3 questions using the equation
swap and test.
Weight = Mass x Gravitational Force
W= m x g
Calculate my weight on earth and the moon

I have a mass of 85kg
g = 10n/kg on earth
g= 1.6 kg/N on the moon
Calculate the spring constant for your spring.
Work Done
Work done (J) = Force (N) X Distance

Work out the work done:
picking up your bag
dragging a chair
Any others?
What is horse power?: http://www.bbc.co.uk/learningzone/clips/what-is-a-horse-power/10886.html

make up your own power and work done questions
swap books
answer q's
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