Work, Energy and PowerSign up
be able to use the equation for work W = Fs, including calculations when the force is not along the line of motion · be able to use the equation Ek = 1/2 mv^2 for the kinetic energy of a body · be able to use the equation Egrav = mg h for the difference in gravitational potential energy near the Earth's surface · know, and understand how to apply, the principle of conservation of energy including use of work done, gravitational potential energy and kinetic energy · be able to use the equations relating power, time and energy transferred or work done P = E/t and P = W/t · be able to use the equations efficiency = useful energy output / total energy input and efficiency = useful power output / total power input
