Power and efficiency

AimstextConsiderationsI use two different examples to introduce power, the power lifter and the powerful car. Anyone can lift 100 bags of sugar from the floor to a table but only a powerful person could do it in 5s. This could be done either by lifting all of them in one go or by lifting each one very quickly (impossible). The powerful car can accelerate fast, increasing KE in a short time and has a high top speed....

To access the entire contents of this site, you need to log in or subscribe to it.

You can also request a Free trial or check the blog (which is also free)

All materials on this website are for the exclusive use of teachers and students at subscribing schools for the period of their subscription. Any unauthorised copying or posting of materials on other websites is an infringement of our copyright and could result in your account being blocked and legal action being taken against you.