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Ch 17: Praxis General Science: Newton's Laws & Motion in Physics

About This Chapter

Building expertise in physics is necessary if you want to earn a teaching certification in general science. Get ready for the Praxis General Science examination by watching this chapter's educational online video lessons on Newton's laws.

Praxis General Science: Newton's Laws and Motion in Physics - Chapter Summary

Brush up on physics concepts in preparation for passing the Praxis General Science examination. As you pursue a teaching certification, look at this chapter's video lessons on Newton's laws of motion. You can review examples of acceleration and force, and recall or learn applications for Newton's first, second and third laws of motion. Continue watching the lessons and discover how to determine net force or calculate an object's weight based on its mass. When you finish the chapter, you might be able to:

  • Explain Newton's first, second and third laws of motion
  • Define gravity, and contrast weight and mass
  • Convert between weight and mass
  • Note the differences between mass and inertia
  • Identify and give examples of inclined planes

Study these physics principles and examples and find out how much you remember from your college classes. Teacher-led, animated and self-paced, the video lessons are informative, fun, and convenient. The chapter includes worksheets, transcripts and lesson summaries. Usually, the educational videos are no longer than eight minutes in length. They're followed up by quizzes that contain five multiple-choice questions. Use these to gauge your comprehension and your preparedness for corresponding questions on the Praxis General Science examination for a teaching endorsement.

Praxis General Science: Newton's Laws and Motion in Physics Chapter Objectives

You'll find five content categories and 135 selected-response questions on the computer-based Praxis General Science examination. The Physical Science content category makes up 38% of the examination. When you reach the Physics section of this content category, you'll need to express what you've learned about Newton's laws and more. In part, the Physical Science category's 51 questions will cover inertia, acceleration, weight, inertia, mass and gravity.

7 Lessons in Chapter 17: Praxis General Science: Newton's Laws & Motion in Physics
Test your knowledge with a 30-question chapter practice test
Newton's First Law of Motion: Examples of the Effect of Force on Motion

1. Newton's First Law of Motion: Examples of the Effect of Force on Motion

This lesson describes Newton's first law of motion, also known as the law of inertia. The interaction between force and motion is explained. Several examples are used to discuss the implications of this law on earth and in space.

Newton's Second Law of Motion: The Relationship Between Force and Acceleration

2. Newton's Second Law of Motion: The Relationship Between Force and Acceleration

This lesson defines Newton's second law of motion. Examples are used to illustrate how unbalanced forces cause objects to accelerate. The examples are used to practice calculating acceleration and force for objects in motion.

Newton's Third Law of Motion: Examples of the Relationship Between Two Forces

3. Newton's Third Law of Motion: Examples of the Relationship Between Two Forces

This lesson describes Newton's third law of motion. Examples are provided to illustrate how interacting objects experience forces. The lesson explains how objects accelerate as a result of force. Applications of Newton's third law are illustrated in nature, machines, and space.

Newton's Laws and Weight, Mass & Gravity

4. Newton's Laws and Weight, Mass & Gravity

Did you know that mass and weight are not the same? This lesson describes the difference between the two as well as the effect of gravity on weight. Examples are used to teach you how to calculate weight based on mass and acceleration of gravity.

Mass and Weight: Differences and Calculations

5. Mass and Weight: Differences and Calculations

We often talk about mass and weight as if they are the same. While they are proportional to each other, they are not, in fact, the same. In this video lesson, you will learn to distinguish between the two, as well as convert one to the other.

Distinguishing Between Inertia and Mass

6. Distinguishing Between Inertia and Mass

Mass and inertia are both related to the amount of matter an object has, but they aren't exactly the same thing. In this video lesson, you'll see how mass affects an object's inertia, which in turn affects that object's motion.

Inclined Planes in Physics: Definition, Facts, and Examples

7. Inclined Planes in Physics: Definition, Facts, and Examples

If an object is not horizontal to the ground, it may be on an inclined plane. We need to adjust both the calculations and the free-body diagram when determining the net force on an object on an inclined plane. Learn how in this lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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