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The ChemPhys Internet Problems assignments are intended to provide students with opportunities to individually apply problem-solving strategies to current topics in order to better internalize the mathematical relationships and improve problem-solving skills. The emphasis on the problem sets is to provide students with individual practice.

Many ChemPhys students occasionally or regularly have difficulty
getting started on a problem or simply get *stuck* once they
have started. For such students, there is a need for help in order
for them to sustain the individual application of problem-solving in
Physics. The Audio Help section is intended to meet that need for
individual help in order to get a student started or *un-stuck*.
Each problem set is accompanied by a collection of audio files for
strategically chosen problems. The audio files provide explanations,
suggestions, hints, diagrams and at times animations for solving the
problems. The ultimate goal is to help students become more confident
of their problem-solving habits and more independent in their
approach to problem sets. The links below lead to the Audio Help
pages.

Problem Set Links for: U1 || U2 || U3 || U4 || U5 || U6 || U7 || U8 || U9 || U10 || U11 || U12 || U13

Want to learn more about the Audio Help pages? See About Audio Help.

Want to learn how to become a better problem-solver? See Problem-Solving Tips.

Having technical issues playing the audio files? See Technical Requirements.

Are you a ChemPhys student wanting to learn of the benefits of using the CD? See CD-ROM.

Are you a teacher or student from another school and want to use the help pages? See Usage Policy.

**Unit 1: Reflection and
Mirrors**

Mirror Equation, Concave Mirrors, Convex Mirrors

Mirror Equation, Concave Mirrors, Convex Mirrors

Index of Refraction, Speed of Light, Snell's Law

Trigonometric Analysis, Snell's Law

Total Internal Reflection, Snell's Law

Lens Equation, Converging Lenses, Diverging Lenses

Wave Speed, Wavelength, Frequency/Period, Wave Equation

Speed/Temperature Relation; Speed Equation; Intensity/Decibels; Inverse Square Law

Speed in a String; Resonating String Problems

Resonating Air Columns (open and closed); Beats

Two Point Source Interference; Path Difference; Young's Equation

Thin Film Interference; Air Wedge Problems

**Unit 6: One-Dimensional
Kinematics**

Average Speed; Average Velocity; Acceleration

Position-Time Graphs: Velocity, Displacement, Distance

Velocity-Time Graphs - Displacement, Acceleration

Kinematic Equations

Kinematic Equations and/or Graphical Analysis of Motion

**Unit 7: Vectors and
Projectiles**

Addition of Right Angle Vectors; Component Addition of Vectors

Component Addition of Vectors; Relative Velocity Problems

Horizontally-launched Projectile Problems

Angle-launched Projectile Problems

**Unit 8: Newton's Laws of
Motion**

F

_{net}= m•a; Weight-Mass; Simple Free-Body AnalysisF

_{net}= m•a; Free-Body Analysis; Kinematic EquationsF

_{net}= m•a; Free-Body Analysis; Coefficient of Friction; Kinematic EquationsF

_{net}= m•a; Free-Body Analysis; Components and Vector ApplicationsF

_{net}= m•a; Free-Body Analysis; Inclined Planes; Two-Body ProblemsF

_{net}= m•a; Free-Body Analysis; Inclined Planes; Two-Body Problems; Vector Applications; Kinematic Equations

**Unit 9: Circular Motion
and Gravitation**

Speed Equation; Acceleration; F

_{net}= m•a; Free-Body AnalysisUniversal Gravitation; g Calculations; Satellite Motion (T, V, a, F)

Satellite Motion (T, V, a, F); Kepler's 3rd Law; Circular Motion Analyses

Charge on an Electron, Coulomb's Law, Some Electric Field Calculations

Coulomb's Law, Electric Field, Vector Applications

Work, Power

Work-Kinetic Energy Change, Kinetic Energy, Potential Energy

Work-Energy Relationships

Energy Conservation Problems; Elastic Potential Energy

Energy Analysis - Inclines, Vertical Motion, Horizontal Motion, Projectile Motion

Energy Analysis - Inclines, Springs, Pendulums

**Unit 12: Momentum and
Collisions**

Momentum, Impulse-Momentum Change Equation

Momentum Conservation

Momentum Conservation, Elastic Collisions, Vector Applications

Momentum Conservation, Elastic Collisions, Vector Applications; Energy Considerations

Electric Potential, Resistance, Ohm's Law, Power

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