Physics I: 501 Practice Problems For Dummies (+ Free Online Practice) book cover

Physics I: 501 Practice Problems For Dummies (+ Free Online Practice)

Author:
Published: June 8, 2022

Overview

Overcome your study inertia and polish your knowledge of physics

Physics I: 501 Practice Problems For Dummies gives you 501 opportunities to practice solving problems from all the major topics covered you Physics I class—in the book and online! Get extra help with tricky subjects, solidify what you’ve already learned, and get in-depth walk-throughs for every problem with this useful book. These practice problems and detailed answer explanations will help you succeed in this tough-but-required class, no matter what your skill level. Thanks to Dummies, you have a resource to help you put key concepts into practice.

  • Work through practice problems on all Physics I topics covered in school classes
  • Step through detailed solutions to build your understanding
  • Access practice questions online to study anywhere, any time
  • Improve your grade and up your study game with practice, practice, practice

The material presented in Physics I: 501 Practice Problems For Dummies is an excellent resource for students, as well as parents and tutors looking to help supplement Physics I instruction.

Physics I: 501 Practice Problems For Dummies (9781119883715) was previously published as Physics I Practice Problems For Dummies (9781118853153). While this version features a new Dummies cover and design, the content is the same as the prior release and should not be considered a new or updated product.

Overcome your study inertia and polish your knowledge of physics

Physics I: 501 Practice Problems For Dummies gives you 501 opportunities to practice solving problems from all the major topics covered you Physics I class—in the book and online! Get extra help with tricky subjects, solidify what you’ve already learned, and get in-depth walk-throughs for every problem with this useful book. These practice problems and detailed answer explanations will help you succeed in this tough-but-required class, no matter what your skill level. Thanks to Dummies, you have a resource to help you put key concepts into practice.

  • Work through practice problems on all Physics I topics covered in school classes
  • Step
through detailed solutions to build your understanding
  • Access practice questions online to study anywhere, any time
  • Improve your grade and up your study game with practice, practice, practice
  • The material presented in Physics I: 501 Practice Problems For Dummies is an excellent resource for students, as well as parents and tutors looking to help supplement Physics I instruction.

    Physics I: 501 Practice Problems For Dummies (9781119883715) was previously published as Physics I Practice Problems For Dummies (9781118853153). While this version features a new Dummies cover and design, the content is the same as the prior release and should not be considered a new or updated product.

    Physics I: 501 Practice Problems For Dummies Cheat Sheet

    Solving physics problems correctly is a lot easier when you have a couple tricks under your belt. In fact, you can greatly improve your odds of getting the right answer if you make sure that what you calculated is plausible in the real world. Another trick is to draw your own visual when one isn’t provided for you — no artistic ability required. It also helps to have this handy reference for some of the most common unit prefixes and unit conversions you’re bound to encounter in your physics homework.

    Articles From The Book

    37 results

    Physics Articles

    Solving Force Problems in Physics by Using Free-Body Diagrams

    In physics, force problems typically ask you to predict what will happen when you apply force to an object, and usually there’s no handy illustration to help you visualize what’s being described. Fortunately, you can create your own diagram so you can better picture what a question is asking you. Follow this seven-step method to solve force problems:

    1. Draw each of the objects you’re interested in.

      Here’s an example:

    2. Identify the forces acting on each object.

      For each force acting on one of the objects from Step 1, draw an arrow that indicates the direction of the force, as shown in the following figure. Note that the tail of the arrow indicates which part of the object the force is acting on.

    3. Draw a free-body diagram for each object.

      If you’re following this step-by-step guide, you’ve already drawn a free-body diagram. It’s listed separately because it’s the most important step!

    4. Choose a coordinate system for each object.

      Usually you draw the x-direction horizontally and the y-direction vertically, as shown in the following figure. However, when dealing with inclined planes, sometimes you want to choose your coordinate axes parallel and perpendicular to the plane.

    5. For each object, write down each component of Newton’s second law.

      For angular motion problems, choose an axis of rotation and write down the angular version of Newton’s second law.

    6. Include any constraints.

      Sometimes you have more variables than equations at this point. Write down any other information you know. For example, if a car is driving on a flat road, you know that the vertical component of its acceleration is zero.

    7. Solve the equations.

      Now that you’ve used all your physics knowledge, all you have to do is the algebra.

    Physics Articles

    Physics Reference Charts for Unit Prefixes and Unit Conversion

    When solving physics problems, you’ll often encounter unit prefixes that you need to know. You also need to be familiar with common unit symbols and their corresponding SI units. The following tables list some of the typical prefixes and symbols that you may see.

    Physics Articles

    How to Check for Physically Reasonable Answers When Solving Physics Problems

    Because physics describes reality, your solutions to any physics problems you tackle should be able to describe reality, too. You can avoid many mistakes by checking that your answers have the following properties:

    • They have the right units. If a problem asks you to find a speed and you get 5 kilograms, you know you made a mistake somewhere. (Note that this check only works if you keep track of your units throughout the whole problem.)

    • They’re the right size. If you calculate that the mass of a planet is 53 grams, that the speed of a soccer ball is 3 trillion meters per second, or that the temperature of ice is 350 degrees Celsius, start searching for the mistake.

    • They point in the right direction. When you’re looking for a vector, sometimes you know roughly what direction it should point.

    • They have the right sign. If you find that the density of a liquid is –1,200 kilograms per cubic meter, you made a sign error along the way.