Work

Is work done if you carry a book across the room at a constant velocity?

No, the force applied is perpendicular to the direction of motion.

Is work done when you lift a brick?

Yes, the force applied is parallel to the direction of motion.

How much work is done when a book weighing 2.0 newtons is carried at constant velocity from one classroom to another classroom 26 meters away?

0.0 J

Energy

he ability to cause changes in matter

Joule

metric unit of work and energy, equal to one newton times one meter

How much work is done when a force of 15.0 newtons is used to lift a box 3.0 meters into the air?

45 J

A box of groceries requires 5.0 newtons of force to lift it up 1.0 meter. How much work is done?

5.0 J

While ______ is being exerted constantly, ______ is not always being accomplished.

Force, work

Work

the product of force and the distance through which it moves

The standard unit of work in the metric system is named after the scientist _____.

James Joule