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Steven Holzner
Physics I For Dummies
Читать книгу Physics I For Dummies - Steven Holzner - Страница 1
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Physics I For Dummies® To view this book's Cheat Sheet, simply go to
www.dummies.com
and search for “Physics I For Dummies Cheat Sheet” in the Search box. Table of Contents
List of Tables
List of Illustrations
Guide
Pages
Страница 8
Страница 9
Страница 10
Using Physics to Understand Your World
What Physics Is All About
Observing the world
Making predictions
Reaping the rewards
Observing Objects in Motion
Measuring speed, direction, velocity, and acceleration
Round and round: Rotational motion
Springs and pendulums: Simple harmonic motion
When Push Comes to Shove: Forces
Absorbing the energy around you
That’s heavy: Pressures in fluids
Feeling Hot but Not Bothered: Thermodynamics
Страница 24
Reviewing Physics Measurement and Math Fundamentals
Measuring the World around You and Making Predictions
Using systems of measurement
From meters to inches and back again: Converting between units
Using conversion factors
LOOKING AT THE UNITS WHEN NUMBERS MAKE YOUR HEAD SPIN
Eliminating Some Zeros: Using Scientific Notation
USING UNIT PREFIXES
Checking the Accuracy and Precision of Measurements
Knowing which digits are significant
Finding the number of significant digits
Rounding answers to the correct number of digits
Estimating accuracy
Arming Yourself with Basic Algebra
Tackling a Little Trig
Interpreting Equations as Real-World Ideas
BE A GENIUS: DON’T FOCUS ON THE MATH
Страница 42
Exploring the Need for Speed
Going the Distance with Displacement
Understanding displacement and position
Examining axes
Finding the distance
Determining direction
Speed Specifics: What Is Speed, Anyway?
Reading the speedometer: Instantaneous speed
Staying steady: Uniform speed
Shifting speeds: Nonuniform motion
Busting out the stopwatch: Average speed
Contrasting average and instantaneous speed
Distinguishing average speed and average velocity
Speeding Up (Or Down): Acceleration
Defining acceleration
Determining the units of acceleration
Looking at positive and negative acceleration
Changing speed
Accounting for direction
Looking at positive and negative acceleration
Examining average and instantaneous acceleration
Taking off: Putting the acceleration formula into practice
Understanding uniform and nonuniform acceleration
Relating Acceleration, Time, and Displacement
Not-so-distant relations: Deriving the formula
Calculating acceleration and distance
Finding acceleration
Figuring out time and distance
Finding distance with initial velocity
Linking Velocity, Acceleration, and Displacement
Finding acceleration
Solving for displacement
Finding final velocity
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