activity directed toward making or doing something
The definition of work is the amount of energy transferred by a Force over a distance. The amount of work done on an object = the force transferred multiplied by the distance the object moves. On the molecular level, if atoms speed up when a force is being applied then work is being done.
3 main types of models:
- physical (smaller or larger representation of what something looks like).
- conceptual (representing an idea not physical appearance).
- mathematical (representing with an equation).