Physics 1090 Unit 3: Momentum and Energy

Unit objectives

Define the momentum of an object and of a set of objects.
Explain how an external net force changes an object’s momentum.
Explain how the force exerted by one object on a second is related to the force exerted by the second on the first.
Explain how the momentum of an object or set of objects changes over time if there is no external force.
Explain what work is, and define both potential and kinetic energy changes in terms of work.
Define the total energy of an object and of a set of objects, and explain how total energy changes over time if there is no external force.
Explain how to determine the output force of a simple machine.