About This Chapter
The Relationship Between Force & Motion - Chapter Summary
This self-paced chapter is designed to refresh your knowledge of the relationship between force and motion. Get up to speed with important concepts like position in physics, unbalanced force and momentum. Upon completion of these lessons, you should have the ability to:
- Define force in physics
- Provide descriptions of Newton's laws of force and motion
- Explain the importance of the law of universal gravitation
- Describe a simple machine and how it operates
- Differentiate between speed, velocity and acceleration
- Discuss the effects and characteristics of friction
- Calculate and measure mass
Around-the-clock access to the lessons in this chapter lets you study whenever your schedule allows. If you need to study while away from your computer, enjoy mobile access using a smartphone or tablet. Self-assessment options like mini quizzes and a chapter exam make it easy to test your knowledge of the relationship between force and motion. Use the Dashboard to trace your steps through this chapter and send any lesson topic questions you have to our experts.
1. Force in Physics: Definition & Examples
Physical forces are all around us. Learn the defining characteristics of forces in physics, look at some examples, and test your understanding with a short quiz.
2. Newton's Laws of Force & Motion
Newton's laws of motion explain why we observe the motion we do in the world around us - they explain how forces work. In this lesson, we take a look at each of Newton's laws one by one.
3. The Law of Universal Gravitation: Definition, Importance & Examples
Gravity is what pulls us toward Earth, but it's also what pulls Earth toward us. This is explained by the law of universal gravitation, which describes how all objects in the universe have this important force between them.
4. Unbalanced Force: Definition & Example
Unbalanced forces are forces that cause a change in the motion of an object. Learn more about how to identify balanced and unbalanced forces through several examples and test your knowledge with quiz questions.
5. Simple Machines: Lever, Inclined Plane & Pulley
Discover what a simple machine is and how it operates. Then learn about the mechanical advantages various simple machines such as levers, inclined planes and pulleys give us.
6. Speed, Velocity & Acceleration
Speed and velocity are not the same thing. Objects' speed and velocity can be identical or very different, depending on their directions of motion. In this article, learn more about these foundational physics concepts, including acceleration and free-falling objects.
7. Characteristics & Effects of Friction
Friction is the force that resists motion. An object's weight and surface material can affect the amount of friction present. Learn how to increase and decrease friction as well as the difference between static and kinetic friction.
8. Formula for Mass: Definition & Examples
In this lesson you will learn about mass and how it is tied to Newton's Second Law of Motion. You will learn how to calculate mass and how to measure mass through a few examples.
9. What is Momentum? - Definition, Equation, Units & Principle
People talk about momentum all the time; now you can discover what that word really means. Then learn about the principle of conservation of momentum and what it has to do with objects colliding.
10. What is Position in Physics? - Definition & Examples
After watching this video, you will be able to explain what position is, why it is a vector, and interpret position-time graphs. A short quiz will follow.
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