Work and Power in Physics: Understanding Energy Transfer and Efficiency
This PowerPoint presentation explains the concepts of work and power in physics. Work is defined as the energy transferred when a force moves an object, calculated as work = force x distance (W = F x d). Power, measured in watts (W), is the rate at which work is done, calculated as power = work done / time taken. The presentation also covers efficiency, defined as the ratio of useful energy output to total energy input, expressed as a percentage. Practical examples, such as calculating a weightlifter′s power output, illustrate these concepts. Ideal for students and educators, this resource provides a clear understanding of work, power, and efficiency in real-world applications.