PhySci+Tuesday,+December+9,+2008

=PhySci Tuesday, December 9, 2008=

• In the absence of a force, an object in motion will remain in motion or an object at rest will remain at rest until acted on by an unbalanced force. • Change in motion of an object (acceleration) is directly proportional to the unbalanced outside force and inversely proportional to the mass. • Whenever one object exerts a force on another, an equal and opposite force is exerted by the second on the first.  • Kinetic energy • Potential energies: gravitational, chemical, electrical, elastic, nuclear • Thermal energy.
 * 2.02 ** Investigate and analyze forces as interactions that can change motion:
 * Investigate the property of inertia as related to mass.
 * Mathematically and graphically analyze weight as the relationship between the acceleration due to gravity and mass of an object:.
 * Investigate mathematically and graphically with respect to acceleration as a change in motion.
 * Investigate balanced and unbalanced forces using the equation: F = ma. //(Solve for the unbalanced force in simple situations--students are not expected to use trigonometry.)//
 * Investigate friction as force that opposes the motion of an object.
 * Analyze Newton’s Third Law as the relationship described by Force of Object A on Object B = - Force of Object B on Object A
 * 3.01 ** Investigate and analyze storage of energy:
 * Calculate kinetic energy:
 * Predict change in kinetic energy when mass or velocity change in.
 * Calculate gravitational potential energy:
 * Predict change in gravitational potential energy when mass or height change in.
 * Analyze and investigate the relationship among kinetic, potential, and other forms of energy to see that total energy is conserved. (**Law of Conservation of Energy)**
 * Analyze and investigate different forms of potential energy: gravitational, chemical, electrical, elastic and nuclear.
 * Use conceptual analysis to investigate the characteristics of a substance-such as mass, specific heat capacity, and temperature-that affect its ability to absorb or release thermal energy. //(Students should only solve math problems with as an enrichment topic.)//