Conservation of Energy and Momentum

2. The laws of conservation of energy and momentum provide a way to predict and
describe the movement of objects. As a basis for understanding this concept:
a. Students know how to calculate kinetic energy by using the formula EÊ=Ê(1/2)mv2.
b. Students know how to calculate changes in gravitational potential energy near
Earth by using the formula (change in potential energy) =Êmgh (h is the change in
the elevation).
c. Students know how to solve problems involving conservation of energy in simple
systems, such as falling objects.
d. Students know how to calculate momentum as the product mv.

e. Students know momentum is a separately conserved quantity different from
energy.
f. Students know an unbalanced force on an object produces a change in its momentum.
g. Students know how to solve problems involving elastic and inelastic collisions
in one dimension by using the principles of conservation of momentum and
energy.
h.* Students know how to solve problems involving conservation of energy in simple
systems with various sources of potential energy, such as capacitors and springs.