A student weighing 700 N climbs a flight of stairs 5.0 m high. Calculate the work done.

In lifting an object, work is done against ______________.

Mechanical energy

The sum of the kinetic energy and potential energy is called ______________ energy.

A watt is one ______________ per second.

If you lift a 15-N weight vertically 30 m above the ground, you are

The time rate of doing work is called ______________.

We define the total mechanical energy of an object as

Some food costs may rise in the future as a consequence of the increased use of which food-based fuel?

The United States’ most abundant fuel supply is ______________.