# Ch 2: Understanding the Laws of Motion

Refresh your understanding of Newton's laws of motion in physics, as well as the principles of motion in one and two dimensions. Review these lessons and quizzes to supplement your knowledge and earn the best score you can on an upcoming test.

## Understanding the Laws of Motion - Chapter Summary

In this chapter, our instructors present Newton's first, second and third laws of motion with examples of how these laws are applied. The concept of average velocity is introduced, as well as the science behind instantaneous velocity. You will also read about physics' most useful type of motion, constant acceleration.

Free fall, air resistance and terminal velocity are explained in detail, as is projectile motion. Your study will continue with a discussion about uniform circular motion and its related equations. Additional lessons compare and contrast tangential to radial acceleration and relative motion to acceleration. After you have completed this chapter, you should be able to:

• Describe the law of inertia and the interaction between force and motion
• Calculate acceleration and force
• Apply Newton's third law of motion to situations in space, machines and nature
• Determine an object's average velocity and instantaneous velocity
• Explain the concepts of constant acceleration, terminal velocity and free fall
• Use equations to determine centripetal force
• Differentiate between tangential and radial acceleration
• Compare relative motion and relative acceleration

Our professionally-designed lessons and quizzes ensure that your learning experience is simple and interesting. Use the chapter tests and lesson quizzes to test your knowledge and understand the areas you need to review. If you have questions along the way, contact one of our instructors for help. Each lesson is accompanied by a printable transcript so you can review the material offline at any time.

11 Lessons in Chapter 2: Understanding the Laws of Motion
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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