About This Chapter
Laws of Motion Overview - Chapter Summary
What are Newton's laws of motion? What are the different types of forces? How is impulse calculated? You'll find answers to these questions and more when you use the lessons in this chapter. You'll review how to apply formulas relating to inertia, friction, acceleration and momentum as well as the relationship between force and motion. Once you have completed this chapter, you should be able to do the following:
- List the different types of forces
- Define inertia and use the related formula
- Provide details about Newton's first, second and third laws of motion
- Understand examples of and calculate impulse
- Apply the formula for conservation of linear momentum
- Differentiate between balanced and unbalanced forces
- Explain friction and its sources
- Use equations to solve problems relating to centripetal force and uniform circular motion
Taught by experienced science educators, these video lessons provide simple overviews of complex laws, formulas and equations that make it easy and fun to learn about motion. Videos are accessible on any device 24/7, so you can study at your convenience. Demonstrate your full understanding of this material by taking self-assessment quizzes at the end of each lesson.
1. Force: Definition and Types
Force is everywhere and it comes in a variety of sizes, directions, and types. In this video lesson, you'll identify force as well the different types of force that objects may experience.
2. Laws of Inertia: Definition & Formula
Inertia is the tendency of an object to stay at rest or in motion. Learn more about Newton's first law as it explains how forces acting on an object are related to the object's mass and motion through several examples, and test your knowledge with quiz questions.
3. 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.
4. 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.
5. Impulse: Definition, Equation, Calculation & Examples
In this lesson you will learn about the concept of impulse and how you can apply it to a variety of interesting situations. You will learn about the relationship between impulse and momentum and how to calculate impulse through a variety of examples.
6. 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.
7. 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.
8. Forces: Balanced and Unbalanced
Forces are needed to start or stop an object's motion, but can also be involved when an object is at rest or already traveling at constant velocity. In this video lesson, you'll identify the difference between balanced and unbalanced forces, understanding how they affect the movement of objects.
9. 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.
10. 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.
11. Centripetal Force: Definition, Examples & Problems
After watching this video, you should be able to explain what centripetal force is, identify the centripetal force in a particular situation, and solve problems using the centripetal force equation. A short quiz will follow.
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