Modesto Junior College Course Outline of Record PHYS 142

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1 Modesto Junior College Course Outline of Record PHYS 142 I. OVERVIEW The following information will appear in the catalog PHYS 142 Mechanics, Heat, & Waves 5 Units Formerly listed as: PHYS - 142: Mechanics, Heat & Waves Prerequisite: Satisfactory completion of MATH 12 Non-calculus introduction to principles and laws of mechanics, thermodynamics and waves. Field trips might be require (A-F or P/NP - Student choice) Lecture /Lab /Discussion Transfer: (CSU, UC) General Education: (MJC-GE: A ) (CSU-GE: B1, B3 ) (IGETC: 5A ) II. LEARNING CONTEXT Given the following learning context, the student who satisfactorily completes this course should be able to achieve the goals specified in Section III, Desired Learning: A. COURSE CONTENT Required Content: Fundamentals i ii Scientific methods and principles Measurement uncertainty Converting units Kinematics in One and Two Dimensions i ii Average velocity and acceleration Instantaneous velocity and acceleration Falling bodies Vectors and scalars Analytical and graphical addition of vectors Dynamics i ii Force Newton s Laws of Motion Mass and weight Free body diagrams Applications involving friction Division: Science, Math & Engineering 1 of 9

2 Circular Motion and Gravitation i ii Kinematics of uniform circular motion Dynamics of uniform circular motion Newton s Law of Universal Gravitation Satellites and weightlessness Work and Energy i ii Work done by a constant force Work done by a non-constant force Kinetic and potential energies The conservation of energy Problem solving involving the conservation of energy f. Linear Momentum i ii Momentum and its relation to force Conservation of momentum Collisions and impulse Elastic and inelastic collisions g. Rotational Momentum i ii v Angular quantities Rotational kinetic equations Torque Moments of inertia Rotational kinetic energy Angular momentum and its conservation h. Equilibrium i ii Statics Conditions for equilibrium Solving statics problems Fluids i Density and specific gravity Pressure and fluids Division: Science, Math & Engineering 2 of 9

3 ii Pascal s Principle Buoyancy and Archimedes Principle Bernoulli s Equation and Principle j. Vibrations and Waves i ii Simple harmonic motion Wave motion Energy transported i n waves k. Sound i Intensity Doppler effect l. Temperature and Kinetic Theory i ii Atomic theory of matter Temperature and temperature scales Thermal expansion The gas laws m. Heat i ii Heat as energy transfer Internal energy of an ideal gas Specific heat Latent heat Conduction, convection, radiation n. The Laws of Thermodynamics i ii The first law of thermodynamics The second law of thermodynamics Heat engines Entropy Required Lab Content: Measurement Quantities, units, standards Division: Science, Math & Engineering 3 of 9

4 i ii Significant figures Order of magnitude estimates Kinematics i ii Uniform motion Uniformly accelerated motion Projectile motion Uniform circular motion Dynamics i ii Newton's laws of motion Applications of Newton's Second Law Friction Work and Energy i ii Kinetic and potential energies Measuring work, power, and efficiencies of simple systems Conservation of mechanical energy Momentum i Impulse-momentum theorem Conservation of linear momentum f. Rotational Motion i ii Rotational kinematics Torque Rotational inertia Rotational equilibrium for rigid bodies Conservation of angular momentum g. Fluid Mechanics i ii Density Archimedes' Principle Bernoulli's Principle h. Wave Mechanics Division: Science, Math & Engineering 4 of 9

5 i ii Simple Harmonic Motion Wave Properties Sound Waves and Beats Thermal Physics i ii Specific Heat Capacity Methods of Heat Transfer Gas Laws B. ENROLLMENT RESTRICTIONS Prerequisites Satisfactory completion of MATH 12 Requisite Skills Before entering the course, the student will be able to: f. g. h. Define the trigonometric functions in terms of sides and angles of a right triangl Define the trigonometric functions in terms of angles in standard position in the Cartesian plan Select the appropriate trigonometric function or functions to calculate unknown parts of a triangl Use the Law of Sines and Law of Cosines to calculate unknown parts of oblique triangles. Sketch the graphs of the trigonometric functions indicating period, amplitude, and phase shift as applicabl State the fundamental trigonometric identities. Define the radian measure of an angl Convert between radian measure and degree measure of angles. Define the inverse trigonometric functions. C. HOURS AND UNITS 5 Units INST METHOD TERM HOURS UNITS Lect Lab Division: Science, Math & Engineering 5 of 9

6 Disc D. METHODS OF INSTRUCTION (TYPICAL) Instructors of the course might conduct the course using the following method: 3. Lectures, class demonstrations and classroom exercises Hands-on laboratory activities Modeling of problem-solving strategies through interactive discussion sessions E. ASSIGNMENTS (TYPICAL) EVIDENCE OF APPROPRIATE WORKLOAD FOR COURSE UNITS Time spent on coursework in addition to hours of instruction (lecture hours) Weekly homework assignments to include textbook reading and problem solving related to concepts discussed in lecture/textbook Weekly laboratory report Studying for weekly homework quizzes, midterms and final exam EVIDENCE OF CRITICAL THINKING Assignments require the appropriate level of critical thinking Example of Homework Problem: A projectile is launched at an angle of 30 degrees to the horizontal at a speed of 30 m/s. How does the horizontal component of its velocity 0 second after launch compare with its horizontal component of velocity 0 seconds after launch? Example of Test Question: A person stands, hands at his side, on a platform that is rotating at a rate of 30 revolutions per secon If he raises his arms to a horizontal position, the speed of rotation decreases to 0.8 revolutions per secon (i) Using the principle of conservation of angular momentum, describe why this is the cas (ii) By what factor has his moment of inertia changed? Example of Laboratory Question: In this lab exercise you measured the coefficient of kinetic friction using three different methods. Compare and contrast these methods and explain which method provides the most accurate result. F. TEXTS AND OTHER READINGS (TYPICAL) Book: Giancoli, Douglas C. (2008). Physics (7th/e). Pearson Prentice Hall. Manual: Instructor of Cours Laboratory Manual for Physics 14 Duplicating III. DESIRED LEARNING A. COURSE GOAL As a result of satisfactory completion of this course, the student should be prepared to: identify and apply the vocabulary and principles of mechanics, wave theory, and thermodynamics to solve problems and explain natural phenomen Furthermore, the student will demonstrate the proper use of laboratory instruments in applying the scientific method to design experiments, collect and analyze data and form appropriate conclusions. B. STUDENT LEARNING GOALS Mastery of the following learning goals will enable the student to achieve the overall course goal. Required Learning Goals Division: Science, Math & Engineering 6 of 9

7 Upon satisfactory completion of this course, the student will be able to: f. g. h. j. k. l. m. n. o. p. q. r. s. t. Define and apply concepts related to measurement (including units, systems of units, metric prefixes, standards, unit conversions, dimensional analysis, order of magnitude estimates and significant figures). Define the translational kinematic variables (time, distance, position, average speed, instantaneous speed, average velocity, instantaneous velocity, average acceleration and instantaneous acceleration) as well as apply them in order to explain, analyze, and solve one-dimensional motion problems. Apply graphical techniques and analytical techniques to solve one-dimensional motion problems. Describe vector properties and use the rules of vector algebra to add vectors, subtract vectors, resolve vectors into components, multiply vectors by scalars and multiply vectors by other vectors using both the scalar product and vector product operations. Use vectors in conjunction with kinematical concepts to describe special cases of two-dimensional motion (including projectile motion and uniform circular motion) and apply kinematical concepts in order to explain, analyze and solve two-dimensional motion problems. State Newton s Three Laws of Motion and apply them in order to explain physical phenomena and solve quantitative problems in dynamics. Define and differentiate among the concepts of work and power (for both constant and variable forces); kinetic energy and potential energy; conservative and non-conservative force as well as apply these concepts in order to explain, analyze and solve problems in mechanics. Apply the Work-Kinetic Energy Theorem and Law of Conservation of Energy to explain physical phenomena and to determine quantitative kinematical information about mechanical systems. Derive the impulse-momentum theorem from Newton s 2nd Law and use it to explain, analyze and solve problems concerning physical phenomen Derive the law of conservation of linear momentum from Newton s 3rd Law and use it to explain, analyze and solve problems involving collisions and other physical phenomen Define and determine the center of mass for a system of particles and use the center of mass concept to simplify and solve motion problems. Define the analogous kinematical variables, kinematical equations and linear transformations for rotational motion and use them to explain, analyze and solve motion problems. Define the concepts torque, work, rotational kinetic energy, power and angular momentum and apply these concepts in order to describe rotating systems. Apply Newton s Second Law, the law of conservation of energy and the law of conservation of angular momentum in order to explain, analyze and solve problems in rotational dynamics. State the equilibrium conditions for a rigid body and apply them in solving statics problems for various systems of rigid bodies. State Newton s Law of Universal Gravitation and apply it in order to explain, analyze and solve problems related to satellite motion and other physical phenomen State and apply Pascal s Principle and Archimedes Principle in explaining, analyzing and solving problems involving hydrostatic phenomen State and apply the Equation of Continuity and Bernoulli s Principle in explaining, analyzing and solving problems involving hydrodynamic phenomen Describe the causes of waves, the properties of waves and a classification scheme for waves. Calculate wave speeds from elastic and inertial properties of media as well as from the wave equation. Division: Science, Math & Engineering 7 of 9

8 u. w. x. y. a`. a a a a a af. ag. Use energy considerations to describe reflection and transmission of waves at boundaries and to determine the power and intensity of various types of waves. Describe how the psychological properties of pitch and loudness relate to physical properties of sound waves, and use the definition of sound level to calculate the loudness and/or intensity of a soun Describe the Doppler Effect and calculate the Doppler frequency when a wave source moves relative to an observer. State the principle of superposition and apply it to situations involving spatial interference and temporal interferenc Describe standing wave formation and harmonics for stringed instruments and wind instruments. Define the concept of resonance and apply it in order to explain physical phenomen Define and distinguish amongst core concepts in thermal physics (temperature, thermal equilibrium, thermometric properties, heat, internal energy and temperature scales) and convert from one temperature scale to another. State and apply the four laws of thermodynamics in explaining, analyzing and solving problems involving thermodynamic processes. Use empirical models to explain and predict thermal expansion in solids, liquids and gases and use the ideal gas law to describe and make predictions about gas behavior. Define the concepts of heat capacity and latent heat and apply these concepts in conjunction with the Law of Conservation of Energy to solve quantitative problems in calorimetry. Describe and distinguish among the three methods of heat transfer and use empirical models to make predictions about the rate of energy transfer via conduction and radiation. Use kinetic molecular theory to predict and explain gas behavior on a microscopic level. Describe real heat engines, Carnot engines, heat pumps and refrigerators in thermodynamics terms and relate these processes along with the concept of entropy to the Second Law of Thermodynamics. Lab Learning Goals Upon satisfactory completion of the lab portion of this course, the student will be able to: Demonstrate the proper use of laboratory instruments in making measurements. Record and analyze their measurements to the correct number of significant digits. Use the scientific method in designing simple experiments to test a physical concept. Apply the scientific method in collecting and analyzing data to form conclusions. Use graphing techniques, statistics, and computer modeling in the analysis of data to determine the relationship between physical quantities. IV. METHODS OF ASSESSMENT (TYPICAL) A. FORMATIVE ASSESSMENT Quizzes Periodic exams Division: Science, Math & Engineering 8 of 9

9 3. 4. Laboratory work and exam Homework; assigned problems and exercises B. SUMMATIVE ASSESSMENT Final exam Division: Science, Math & Engineering 9 of 9