Across
- 3. strength or energy as an attribute of physical action or movement.
- 4. activity involving mental or physical effort done in order to achieve a purpose or result
- 5. an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task.
- 6. the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
Down
- 1. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
- 2. a machine consisiting of two or more simple machines working together