Ch 11: Praxis General Science: Motion & Forces

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 motion and forces.

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. Look at this chapter's video lessons on motion and forces, which are taught by experience educators. When you finish the chapter, you should be able to:

  • Define projectile motion
  • Explain friction and its formula
  • Contrast elastic and inelastic collisions
  • Calculate uniform circular motion and periodic motion
  • Identify the characteristics of work
  • Apply the work-energy theorem
  • Discuss power
  • Understand the characteristics of fluids in physics

Study these physics principles 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 full transcripts of all the videos. Use the lesson quizzes to gauge your comprehension and preparedness for corresponding questions on the Praxis General Science examination.

9 Lessons in Chapter 11: Praxis General Science: Motion & Forces
Test your knowledge with a 30-question chapter practice test
Projectile Motion: Definition and Examples

1. Projectile Motion: Definition and Examples

A projectile is any object that is given an initial velocity and then follows a path determined entirely by gravity. In this lesson, we will introduce projectile motion and touch on a few key facts to keep in mind when working through these problems.

What is Friction? - Definition, Formula & Forces

2. What is Friction? - Definition, Formula & Forces

Friction is the force that opposes the motion of an object. Learn about the sources of friction, identify examples of friction and test your knowledge with quiz questions.

Elastic and Inelastic Collisions: Difference and Principles

3. Elastic and Inelastic Collisions: Difference and Principles

When objects come in contact with each other, a collision occurs. In this lesson, you'll learn about the two types of collisions as well as how momentum is conserved in each.

Uniform Circular Motion: Definition & Mathematics

4. Uniform Circular Motion: Definition & Mathematics

After watching this lesson, you will be able to explain what uniform circular motion is, in terms of both acceleration and forces. You will also be able to use equations for centripetal force and acceleration to solve problems. A short quiz will follow.

Periodic Motion: Definition & Examples

5. Periodic Motion: Definition & Examples

After completing this lesson, you should be able to define and provide examples of periodic motion, as well as describe what makes a periodic motion a simple harmonic motion.

Work: Definition, Characteristics, and Examples

6. Work: Definition, Characteristics, and Examples

Pushing a wall all day may feel like work, but unless you get that wall moving you're not doing any work according to the rules of physics. In this video lesson, you'll learn how work is defined as well as how to calculate the amount of work done on an object.

Work-Energy Theorem: Definition and Application

7. Work-Energy Theorem: Definition and Application

Work and energy are closely related in physics. In this lesson, you'll learn what that relationship is as well as how we can apply it to various situations.

Power: Definition and Mathematics

8. Power: Definition and Mathematics

Work involves moving an object with a force, but power tells us how quickly that work is done. In this lesson, you will learn about how power depends on both work and time as well as see examples of how to calculate power.

Fluids in Physics: Definition and Characteristics

9. Fluids in Physics: Definition and Characteristics

Fluids really know how to move! As flowing materials, fluids have some unique properties that help us understand and describe them. In this lesson you'll explore what fluids are and how they are defined in the world of physics.

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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