About This Chapter
Praxis Physics: Linear Momentum - Chapter Summary
Prepare to answer questions about linear momentum on the Praxis Physics examination. When you begin studying this chapter's animated video lessons, you'll explore the fundamentals of linear momentum. As you progress through the chapter, Newton's laws of motion and the law of conservation of momentum will be explained along with elastic and inelastic collisions. Upon completion, you could be capable of:
- Defining and understanding linear momentum
- Determining the effects of impulse on momentum
- Explaining and giving examples of the law of conservation of linear momentum
- Describing the principles behind elastic and inelastic collisions
- Understanding isolated systems
Since the video lessons are short, often between five and ten minutes in length, they can be added to your existing study resources. You can review them online at your convenience as you prepare for the Praxis Physics examination. The lesson instructors provide much of the information you'll need to address questions on the above topics during the testing process. Take the handy quizzes when you're ready, and refer to the transcripts when you need quick clarification. There are also video tags that will allow you to quickly find facts.
Praxis Physics: Linear Momentum Chapter Objectives
The Mechanics section is, by far, the largest of the Praxis Physics examination's six content categories. It has 40 questions and makes up about 32% of the assessment score. The topics that you've studied here will show up on the test. These include impulse and momentum, elastic and inelastic collisions, Newton's laws and conservation of momentum. All 125 test questions are in selected-response format. You'll have 2.5 hours to finish the computer-based test and, potentially, qualify for a teaching license in physics.
1. Linear Momentum: Definition, Equation, and Examples
Any moving object has momentum, but how much momentum it has depends on its mass and velocity. In this lesson, you'll identify linear momentum, as well as see examples of how an object's momentum is affected by mass and velocity.
2. Momentum and Impulse: Definition, Theorem and Examples
To understand how a change in momentum affects an object, we look to impulse. In this lesson, you'll understand how impulse describes an object's change in momentum, as well as how changing the force or time of the impulse can have very different outcomes.
3. Conservation of Linear Momentum: Formula and Examples
The law of conservation of momentum tells us that the amount of momentum for a system doesn't change. In this lesson, we'll explore how that can be true even when the momenta of the individual components does change.
4. 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.
5. Isolated Systems in Physics: Definition and Examples
Systems are important to understand when studying physics, but they are not always easy to describe. In this video lesson, you'll identify isolated systems and understand what makes them unique.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Praxis Physics (5265): Practice & Study Guide course
- Praxis Physics: Scientific Inquiry & Social Perspective
- Praxis Physics: Scientific Procedures & Techniques
- Praxis Physics: Vectors & Scalars
- Praxis Physics: Kinematics
- Praxis Physics: Motion
- Praxis Physics: Oscillations
- Praxis Physics: Work, Energy & Power
- Praxis Physics: Rotational Motion, Collisions & Conservation
- Praxis Physics: Laws of Gravitation
- Praxis Physics: Fluid Mechanics
- Praxis Physics: Electrical Forces & Fields
- Praxis Physics: Potential & Capacitance
- Praxis Physics: Direct Current Circuits
- Praxis Physics: Magnetism
- Praxis Physics: Optics & Waves
- Praxis Physics: Heat, Energy & Thermodynamics
- Praxis Physics: Modern Physics & Atomic Structure
- Praxis Physics: Content Knowledge Flashcards