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Work done = Force x Displacement. The force on the 5kg mass will be 5xg (g=acceleration due to gravity). The displacement is 10m. So the work done will be 50xg or around 475j.

Use a longer spanner.The turning force can also be called the "moment".Remember that moment = force x distance (from pivot)Therefore increasing the distance between the pivot and the force on th...

methodical approach to answering the question step by step:1) The length of the wire needs to be measured and varied (this is order to get a complete set of results for your experiment )2) Then go through...

For this question we solve it using Charles’ Law. Charles’ law states that the product of volume and temperature gives a constant value. This is illustrated by VT=C. This means that volume and temperature...

specific heat capacity = change in energy ÷ (mass × change in temperature) [1]= 5,250 ÷ (0.250 × 5) [1]= 4,200 J/kg°C [1]