honors physics - unit five work and energy
TRANSCRIPT
Honors Physics - Unit Five
Work and Energy
At the end of this unit, you should be able to:
• Recognize the difference between the scientific and ordinary definitions of work. • Define work by relating it to force and displacement (scientific work). • Know the formula for scientific work and be able to apply it in different situations. • Identify where work is being performed in a variety of situations.
• Identify several forms of energy. • Calculate kinetic energy for an object. • Apply the work-kinetic energy theorem
to solve problems. • Distinguish between kinetic and
potential energy. • Classify different types of potential
energy. • Calculate the potential energy
associated with an object’s position.
• Identify situations in which conservation of mechanical energy is valid.
• Recognize the forms that conserved energy can take.
• Know the formula for the conservation of mechanical energy and be able to apply that formula to different situations.
• Solve problems using conservation of mechanical
energy. • Relate the concepts of energy, time, and
power. • Know the
formula(s) for power and be able to apply them appropriately.
• Explain the effect of machines on work and power.