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"It would be so nice if something would make sense for a change. "
- Alice in "Alice in Wonderland" by Lewis Carroll
Definition of mechanical work. Joule - a unit of work.
Simple machines and mechanical advantage.
Formula for work done by a force acting at an angle relative to displacement. Work as a "dot product" of two vectors.
Work done by a variable force. Net work.
Work done by force of gravity. Energy as an ability to do work. Gravitational potential energy. Zero level of potential energy.
Hooke's Law and spring constant. Elastic potential energy.
Kinetic energy. Work-Energy theorem.
Work as a change of energy.
Potential energy well. Atomic bonds: electrons in potential energy well.
Total mechanical energy. The Law of Conservation of Energy.
Presentation: On Mechanical Work and Mechanical Energy
Presentation: On Mechanical Work and Mechanical Energy
Practice Assignments:
Practice Assignments:
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