# The Review Session

Welcome to The Review Session. The Review Session includes a Unit Review for each of the units covered at The Physics Classroom Tutorial. There are three versions of each review:

• a version which simply has questions (Printable Version)
• a version which contains questions and links to pertinent information (Questions with Links)

Pick the review which best suits your purpose. If you wish to do the review offline as a paper-and-pencil type practice, then use the Printable Version. Later you can log back on and view the Answers version. If you wish to use the review online as a practice with the answers hidden from view, then use the Questions with Links version.

## One Dimensional Kinematics

Description: Questions pertain to the following concepts: scalars, vectors, distance, displacement, position, speed, velocity, acceleration, time, ticker-tape diagrams, position-time, velocity-time graphs, free fall, and kinematic equations.

Answers: All || #1-7 || #8-28 || #29-42 || #43-50

## Newton's Laws of Motion

Description: Questions pertain to Newton's three laws of motion with an emphasis on the following concepts: inertia, mass, force, the Newton, weight, gravity, free-body diagrams, normal force, tension, spring force, friction, coefficient of friction, force of gravity, net force, acceleration, free fall, acceleration of gravity, air resistance, and terminal velocity. All mathematical analyses are restricted to physical situations in which the object moves in one-dimension - usually either horizontally or vertically (but never both at the same time).

Answers: All || #1-7 || #8-36 || #37-46 || #47-60

## Vectors and Projectiles

Description: Questions pertain to vector principles and operations with the ultimate application to the motion of projectiles. The following concepts are emphasized: scalars, vectors, vector direction, the CCW convention of direction, vector addition, resultants, vector resolution, vector components, SOHCAHTOA, Pythagorean theorem, relative velocity, riverboat problems, projectiles, projectile motion, trajectory, projectile mathematics, kinematic equations, maximum range, velocity components, displacement components, free fall, and acceleration of gravity.

Answers: All || #1-9 || #10-45 || #46-55 || #56-72

## Forces in Two-Dimensions

Description: Questions pertain to the application of Newton's three laws of motion and vector principles to the motion of objects. Situations in which forces must be resolved in to components or added together as vectors are plentiful in this review. Kinematic equations are often used ion the analysis. Some two-body problems including a simultaneous analysis of two objects are also included. The following concepts are emphasized: vectors, vector direction, vector addition, vector resolution, vector components, SOHCAHTOA, Pythagorean theorem, equilibrium, statics, weight, tension, two-body problems, pulleys, Atwood machines, inclined plane problems, equilibrium, kinematic equations, friction, and coefficient of friction.

Answers: All || #1-12 || #13-21 || #22-30

## Momentum and Collisions

Description: Questions pertain to the application of the momentum change-impulse theorem and the momentum conservation principle to the analysis of collisions and explosions. Some problems involve combining a momentum analysis with kinematic equations or work-energy theorem. Some elastic collisions problems presume a prior knowledge of kinetic energy. Some problems involving two-dimensional collisions require a vector analysis. The following concepts are emphasized: momentum, impulse, momentum change-impulse theorem, action-reaction, momentum conservation, momentum transfer, two-dimensional collisions, momentum vectors, inelastic collisions, elastic collisions, glancing collisions, Pythagorean theorem, and SOHCAHTOA.

Answers: All || #1-5 || #6-36 || #37-56 || #57-72

## Work, Energy and Power

Description: Questions pertain to the analysis of motion using relationships related to work and energy, mainly energy conservation and work-energy transfer principles. The following concepts are emphasized: work, positive work, negative work, energy, power, conservative (internal) forces, non-conservative (external) forces, potential energy, kinetic energy, mechanical energy, conservation of energy, work-energy theorem, pendulum, and incline planes.

Answers: All || #1-10 || #11-25 || #26-36 || #37-45

## Circular Motion and Gravitation

Description: Questions pertain to the application of Newton's three laws of motion and universal gravitation to situations involving the motion of objects in circles and orbiting objects. The following concepts are emphasized: speed, velocity, tangential velocity, acceleration, centripetal acceleration, inertia, free-body diagrams, uniform circular motion, roller coaster rides, roller coaster loops, turns, normal force, weight, force of gravity, free-body diagrams, gravity, gravitation, universal gravitation, inverse square law, free fall, acceleration of gravity, orbits, satellites, Kepler's laws, planetary motion, orbital speed, and orbital period.

Answers: All || #1-14 || #15-28 || #29-40

## Static Electricity

Description: Questions pertain to the application of electrostatic principles to the analysis of charge interactions and charging and grounding processes. The following concepts are emphasized: charged versus neutral objects, protons-electron comparisons, charging methods, charging by friction, charge separation, charging by induction, charging by conduction (charging by contact), conservation of charge, polarization, grounding, conductors versus insulators, Coulomb's law, the Coulomb, the microCoulomb, Coulomb or electrostatic force, electric field, electric field lines, lightning, lightning rods, and electrostatic equilibrium.

Answers: All || #1-16 || #17-32 || #33-43

## Electric Circuits

Description: Questions pertain to the analysis of electric circuits and the mathematical relationships between electrical quantities. The following concepts are emphasized: electric potential, electric potential difference, voltage, the volt, requirements for an electric circuit, current, charge flow, conventional current, the ampere, resistance, the ohm, Ohm's law, resistivity, electrical power, the Watt, electrical energy, electrical costs, series circuit, parallel circuit, and Kirchoff's laws.

Answers: All || #1-7 || #8-51 || #52-59 || #60-72

## Wave Basics

Description: Questions pertain to the nature of a wave and to basic properties and behaviors of waves. Some questions focus on mathematical relationships such as the wave equation and the length-wavelength relationships for standing wave patterns. The following concepts are emphasized: electromagnetic waves, mechanical waves, longitudinal waves, transverse waves, energy transport, properties of waves, wavelength, amplitude, frequency, period, wave speed, reflection, interference, boundary behavior, transmission, standing waves and the wave equation.

Answers: All || #1-#14 || #15-#26 || #27-#38

## Sound and Music

Description: Questions pertain to the nature of sound and the properties and behaviors of sound and to the application of sound properties to an understanding of the sounds produced by musical instruments. The following concepts are emphasized: sound as a mechanical, longitudinal and pressure wave, pitch, frequency, amplitude, energy transport, intensity, deciBel level, speed of sound, echo, Doppler shift or Doppler effect, resonance, musical instruments, standing wave patterns, vibrating strings, vibrating air columns, resonance tubes, and beats.

Answers: All || #1-#9 || #10-#52 || #53-#64 || #65-#75

## Light and Color

Description: Questions pertain to the wave properties of light - particularly polarization and two-point source interference. Principles of color addition and color subtraction are used to explain the world of color. The following concepts are emphasized: light as an electromagnetic wave, electromagnetic spectrum, visible light spectrum, polarization, interference, two-point source interference, Young's equation, Young's experiment, wavelength measurement, polarization, color, rods and cones of the eye, primary colors of light, secondary colors of light, primary pigments, secondary pigments, color addition, color subtraction, diffraction and scattering.

Answers: All || #1-#11 || #12-#20 || #21-#28

## Reflection and Mirrors

Description: Questions pertain to light reflection and image formation by plane mirrors and spherical mirrors. Ray diagrams and the mirror equation are used to explore the object-image relationships for concave and convex mirrors. The following concepts are emphasized: the law of reflection, diffuse reflection, specular reflection, angle of incidence, angle of reflection, image formation, plane mirrors, right angle mirrors, curved mirrors, ray diagrams, principal rays, image formation, image characteristics, real versus virtual images, mirror equation, magnification, magnification equation, and spherical aberration.

All || #1-#19 || #20-#26 || #27-#32 || #33-#42

## Refraction and Lenses

Description: Questions pertain to light refraction, total internal reflection and image formation by lenses. Snell's law is used to analyze the refraction of light at the boundary between two transparent materials. Ray diagrams and the lens equation are used to analyze the object-image relationships for converging and diverging lenses. The following concepts are emphasized: refraction, Snell's law, angle of incidence, angle of refraction, least time principle, boundary behavior, total internal reflection, critical angle, lenses, diverging lenses, converging lenses, focal point, real versus virtual images, inverted versus upright images, lens equation, and magnification equation.

Answers: All || #1-#20 || #21-#34 || #35-#46