Main content

## Work and energy

# What is power?

Learn what power means and how we use it to describe the rate of energy transfer.

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content

Learn what power means and how we use it to describe the rate of energy transfer.