Recall that the joule is the unit for both work and energy. Use the equation: work done = force × distance Describe power as a Use the equation: Use the equation, including a measurement of how quickly change of subject: work is being done. Recall that power is measured in watts (W). Interpret fuel consumption figures from data on cars to include: when work has been environmental issues • Recognise that cars: calculated. costs. • have different power ratings • have different engine Use and understand the • and relate to fuel derivation of the power consumption. equation in the form: power = force × speed
Recall that the joule is the unit for both work and energy. Use the equation: work done = force × distance Describe power as a measurement of how quickly work is being done. Recall that power is measured in watts (W). Recognise that cars: • have different power ratings • have different engine and relate to fuel consumption. Use the equation: Interpret fuel consumption figures from data on cars to include: • environmental issues • costs. Use the equation, including a change of subject: when work has been calculated. Use and understand the derivation of the power equation in the form: power = force × speed