UNIT 5. CONSERVATION LAWS

At the end of this unit the student should be able to:

- Define and apply the concepts of work done by a constant force,

  potential energy, kinetic energy and power

- Calculate the work from the area under the curve of a force versus

  displacement graph

- Distinguish between conservative and non-conservative forces

- State and apply the principle of conservation of mechanical energy

- Demonstrate proficiency in solving problems by applying the

  work-energy theorem to situations that involve conservative and

  non-conservative forces

- Define and give examples of impulse and momentum

- Restate Newton’s second law of motion in terms of momentum

- Calculate the change in momentum from the area under the curve

  of a force versus time graph

- Derive a statement of the conservation of momentum between two

  objects by applying Newton's third law

- Define and recognize examples of elastic and inelastic collisions

- Explain which conservation laws apply to each type of collisions

- Demonstrate proficiency in solving problems involving conservation of

  momentum in collisions in one and two dimensions