# Physics 1

**Our complete Physics 1 package includes:**

**12-month Online Subscription**to our complete Physics 1 course with video lessons, day-by-day lesson plans, automatically graded exercises, and much more.**Printed Notes**(optional) are the Physics 1 course notes from the Online Subscription printed in a black & white, on-the-go format. These are available for purchase from the Physics 1 Course Site.

### Physics 1 details

Thinkwell's Physics I is a calculus-based college-level physics course, intended for physics majors as well as for engineering and other science students. It includes topics that are generally covered in the first semester of a two-semester sequence.

It's a great head start for the college-bound math, science, or engineering student.

Calculus is a prerequisite.

Thinkwell's Physics 1 has all the features your home school needs:

- More than 140 educational video lessons
- 104 available contact hours (What is this?)
The number of contact hours in a course reflects the amount of time a student will typically spend completing the assignments in each course (i.e. watching videos, doing exercises, taking exams, etc...). Many people think about contact hours as the "seat time" for a course. Thinkwell provides this information so you can ensure that the amount of instruction in a Thinkwell course meets the standards and requirements for your state or region.
- 35-week lesson plan with daily assignments (see lesson plan)
- 1000+ interactive physics exercises with immediate feedback allow you to track your progress (See sample)
- Practice tests and final tests for all 11 chapters, as well as a midterm and a final
- Printable illustrated notes for each topic
- Glossary of more than 150physics terms
- Engaging content to help students advance their knowledge of physics:
- Kinematics and motion
- Newton's three laws of physics
- Work, energy, and power
- Momentum
- Extended objects
- Gravity
- Fluid statics and dynamics
- Einsteinâ€™s theory of relativity and relativistic dynamics
- Oscillatory motion
- Waves

### About the Authors

### Table of Contents

(Expand All - Close All)#### 1. Preliminaries

- 1.1 Welcome to Physics
- 1.1.1 Welcome to Physics

- 1.2 Measuring the World Around Us
- 1.2.1 Physical Quantities and Units of Measurement

- 1.2.2 Unit Conversion and Dimensional Analysis

- 1.2.3 Uncertainty in Measurement and Significant Digits

- 1.3 Vectors
- 1.3.1 The Basics of Vectors

- 1.3.2 Vector Components and Unit Vectors

- 1.4 Scalar Products
- 1.4.1 The Scalar Product

- 1.5 Vector Products
- 1.5.1 The Vector Product

#### 2. Kinematics

- 2.1 Investigating One-Dimensional Motion
- 2.1.1 Describing Motion

- 2.1.2 Displacement and Average Velocity

- 2.1.3 Understanding Instantaneous Velocity

- 2.1.4 Instantaneous Velocity and the Derivative

- 2.1.5 Acceleration

- 2.1.6 Another Look at Position, Velocity, and Acceleration

- 2.2 One-Dimensional Motion With Constant Acceleration
- 2.2.1 Describing Motion Under Constant Acceleration

- 2.2.2 Solving Problems Involving Motion Under Constant Acceleration

- 2.2.3 Free-Falling Objects

- 2.3 Describing Motion in Two and Three Dimensions
- 2.3.1 The Position and Velocity Vectors

- 2.3.2 The Acceleration Vector

- 2.3.3 Relating Position, Velocity, and Acceleration Vectors in Two Dimensions

- 2.4 Investigating Motion in Two Dimensions
- 2.4.1 A First Look at Projectile Motion

- 2.4.2 Understanding Projectile Motion

- 2.4.3 Physics in Action: The Hunter and the Monkey

- 2.5 Uniform Circular Motion
- 2.5.1 Describing Uniform Circular Motion

- 2.6 Relative Motion and Reference Frames
- 2.6.1 Understanding Relative Motion

- 2.6.2 Physics in Action: Toss-and-Catch from Two Points of View

#### 3. Dynamics

- 3.1 Newton's Three Laws
- 3.1.1 Newton's First Law

- 3.1.2 Physics in Action: The Three Balls Demo

- 3.1.3 Introduction to Newton's Second Law

- 3.1.4 The Vector Nature of Force and Newton's Second Law

- 3.1.5 Weight

- 3.1.6 Actions, Reactions, and Newton's Third Law

- 3.1.7 Physics in Action: A Tug-of-War

- 3.2 Applications of Newton's Three Laws
- 3.2.1 Free-Body Diagrams

- 3.2.2 Solving Problems Using Newton's Laws: Ropes and Tension

- 3.2.3 Solving Problems Using Newton's Laws: Inclines and the Normal Force

- 3.3 The Forces of Friction
- 3.3.1 Understanding the Frictional Force Between Two Surfaces

- 3.3.2 Problems on Friction and Inclines

- 3.3.3 Motion Through a Fluid: Drag Force and Terminal Speed

- 3.4 The Dynamics of Circular Motion
- 3.4.1 Forces and Uniform Circular Motion

- 3.4.2 Solving Circular Motion Problems

#### 4. Energy

- 4.1 Work
- 4.1.1 The Work Done by a Constant Force in One Dimension

- 4.1.2 The Work Done by a Constant Force in Two Dimensions

- 4.1.3 The Work Done by a Variable Force

- 4.1.4 The Work Done by a Spring

- 4.2 Work, Kinetic Energy, and Power
- 4.2.1 The Work-Kinetic Energy Theorem

- 4.2.2 Solving Problems Involving Work and Kinetic Energy

- 4.2.3 Power

- 4.3 Potential Energy
- 4.3.1 Work and Gravitational Potential Energy

- 4.3.2 Conservative and Nonconservative Forces

- 4.3.3 Calculating Potential Energy

- 4.4 Conservation of Energy
- 4.4.1 Understanding Conservation of Mechanical Energy

- 4.4.2 Physics in Action: The Triple Chute

- 4.4.3 Solving Problems Using Conservation of Mechanical Energy

- 4.4.4 Potential Energy Functions and Energy Diagrams

- 4.4.5 Work and Nonconservative Forces

- 4.4.6 Physics in Action: The Giant Nose-Basher

- 4.4.7 Conservation of Energy in General

#### 5. Momentum

- 5.1 Momentum and Its Conservation
- 5.1.1 Linear Momentum and Impulse

- 5.1.2 Solving Problems Using Linear Momentum and Impulse

- 5.1.3 Conservation of Momentum

- 5.1.4 Solving Problems Using Conservation of Momentum

- 5.1.5 Rocket Propulsion

- 5.2 Elastic and Inelastic Collisions
- 5.2.1 Elastic Collisions in One Dimension

- 5.2.2 Inelastic Collisions in One Dimension

- 5.2.3 Collisions in Two Dimensions

#### 6. The Physics of Extended Objects

- 6.1 Systems of Particles and the Center of Mass
- 6.1.1 The Center of Mass of a System of Particles

- 6.1.2 The Center of Mass of a Rigid Body

- 6.1.3 The Center of Mass and the Motion of a System of Particles

- 6.1.4 Physics in Action: Motion and the Center of Mass

- 6.2 Describing Angular Motion
- 6.2.1 Angular Displacement, Velocity, and Acceleration

- 6.2.2 Rotation with Constant Angular Acceleration

- 6.2.3 Relating Angular and Linear Quantities

- 6.3 Rotational Inertia and Kinetic Energy
- 6.3.1 The Kinetic Energy of Rotation

- 6.3.2 Calculating the Rotational Inertia of Solid Bodies

- 6.4 The Dynamics of Rotational Motion
- 6.4.1 Torque

- 6.4.2 Newton's Second Law for Rotational Motion

- 6.4.3 Solving Problems Using Newton's Second Law for Rotational Motion

- 6.4.4 Work and Power in Rotational Motion

- 6.5 Rolling
- 6.5.1 Understanding Rolling Motion

- 6.5.2 Solving Problems Involving Rolling Motion

- 6.5.3 Physics in Action: A Downhill Race

- 6.6 Angular Momentum
- 6.6.1 The Definition of Angular Momentum

- 6.6.2 Torque and Angular Momentum

- 6.7 Conservation of Angular Momentum
- 6.7.1 Understanding Conservation of Angular Momentum

- 6.7.2 Physics in Action: Conservation of Angular Momentum

- 6.7.3 Solving Problems Using Conservation of Angular Momentum

- 6.8 Precession
- 6.8.1 Understanding Precession

- 6.9 Statics
- 6.9.1 The Conditions for Static Equilibrium

- 6.9.2 Understanding Stable Equilibrium and the Center of Gravity

- 6.9.3 Solving Static Equilibrium Problems

#### 7. Force of Gravity

- 7.1 Gravity
- 7.1.1 Newton's Law of Gravitation

- 7.1.2 Gravity on Earth

- 7.1.3 Weightlessness

- 7.1.4 Gravitational Potential Energy

- 7.2 Orbital Motion
- 7.2.1 Understanding Circular Orbital Motion

- 7.2.2 Kepler's Three Laws

- 7.2.3 Energy in Orbital Motion

#### 8. Fluids

- 8.1 Fluid Statics
- 8.1.1 Fluids, Density, and Pressure

- 8.1.2 Physics in Action: A Bed of Nails

- 8.1.3 How Pressure Varies with Depth

- 8.1.4 Physics in Action: Pressure in a Graduated Cylinder

- 8.1.5 Physics in Action: Pressure Changes in a Bell Jar

- 8.1.6 Physics in Action: Barrel Crunch

- 8.1.7 Pascal's Principle and Examples of Hydrostatics

- 8.1.8 Buoyancy and Archimedes' Principle

- 8.1.9 Physics in Action: Buoyancy in Air

- 8.2 Fluid Dynamics
- 8.2.1 Fluids in Motion: Streamlines and Continuity

- 8.2.2 Bernoulli's Equation

- 8.2.3 Physics in Action: A Ball Caught in a Stream of Air

- 8.2.4 Fluids in the Real World: Surface Tension, Turbulence, and Viscosity

#### 9. Relativity

- 9.1 Understanding Einstein's Special Theory of Relativity
- 9.1.1 Einstein's Postulates

- 9.1.2 The Relativity of Simultaneity

- 9.1.3 Time Dilation

- 9.1.4 Length Contraction

- 9.2 The Lorentz Transformations
- 9.2.1 The Lorentz Transformation Equations

- 9.2.2 Solving Problems Using the Lorentz Transformations

- 9.3 Relativistic Dynamics
- 9.3.1 Relativistic Momentum

- 9.3.2 Relativistic Energy

- 9.3.3 A Clock Story

#### 10. Oscillatory Motion

- 10.1 Simple Harmonic Motion
- 10.1.1 A Mass on a Spring: Simple Harmonic Motion

- 10.1.2 The Equations Describing Simple Harmonic Motion

- 10.1.3 Energy in Simple Harmonic Motion

- 10.2 Pendulums
- 10.2.1 The Simple Pendulum

- 10.2.2 Physical Pendulums

- 10.3 Damped and Driven Oscillations
- 10.3.1 Damped Simple Harmonic Motion

- 10.3.2 Driven Oscillators

- 10.3.3 Physics in Action: Resonance

#### 11. Waves

- 11.1 The Basics of Waves
- 11.1.1 Introduction to Waves

- 11.1.2 A Wave on a Rope: Frequency and Wavelength

- 11.1.3 A Wave on a Rope: Wave Speed

- 11.1.4 A Wave on a Rope: Energy and Power

- 11.2 Waves on Top of Waves
- 11.2.1 Reflection, Transmission, and Superposition

- 11.2.2 Interference

- 11.3 Standing Waves
- 11.3.1 Standing Waves: Two Waves Traveling in Opposite Directions

- 11.3.2 Standing Waves on a String

- 11.3.3 Physics in Action: Standing Waves on a Rope

- 11.3.4 Longitudinal Standing Waves

- 11.3.5 Physics in Action: Standing Waves on a Sheet of Metal

- 11.4 Sound
- 11.4.1 Sound Waves

- 11.4.2 Physics in Action: Sound Waves in a Flaming Pipe

- 11.4.3 The Character of Sound and Fourier Analysis

- 11.4.4 Physics in Action: Musical Instruments and Waveforms

- 11.4.5 Intensity and Loudness

- 11.4.6 Sound and Light

- 11.5 Interference and the Doppler Effect
- 11.5.1 Sound Waves and Interference

- 11.5.2 Beats

- 11.5.3 The Doppler Effect