BBC2 年
Work, power and efficiency - AQA
One joule of work is done (or one joule of energy is transferred) when a force of one newton causes a body to move through a distance of one metre.
BBC10 个月
Work, power and efficiency - AQA
One joule of work is done (or one joule of energy is transferred) when a force of one newton causes a body to move through a distance of one metre.