About This Chapter
Basics of Newton's First Law - Chapter Summary
Improve your understanding of Newton's first law with this helpful physics chapter. As you follow along with our expert instructors, you'll break down concepts like balanced and unbalanced forces, inclined planes, free-body diagrams, forces and other topics that are related to Newton's first law of motion. Be sure to take the lesson quizzes and chapter exams to strengthen your understanding of the material. The chapter material is available at any time of day or night, and you can use any Internet-connected device to study. Our instructors are also happy to answer any questions you may have. Studying this chapter can help you:
- Define Newton's first law of motion
- Interpret free-body diagrams
- Identify individual forces that act upon an object
- Compare balanced and unbalanced forces
- Make net force calculations
- Calculate balanced forces using free-body diagrams
- Solve physics problems by applying Newton's first law
- Recognize examples of inclined planes
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.
2. Free-Body Diagrams
Forces that act on an object can be drawn through special vector diagrams called free-body diagrams. In this video lesson you'll identify how to correctly represent forces in a free-body diagram through vector arrows and force labels.
3. Determining the Individual Forces Acting Upon an Object
Objects constantly have forces acting on them whether they are moving or at rest. In this video lesson, you'll understand how to identify the individual forces acting on an object by reviewing the different types of forces and the use of free-body diagrams.
4. 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.
5. Net Force: Definition and Calculations
Because forces are vectors, we can't simply add them up to get a total amount of force on an object. Instead, we calculate the net force, which is important to understand because it tells us about an object's state of motion.
6. Practice Using Free-Body Diagrams to Calculate Balanced Forces
In this lesson, we'll tackle Newton's first law using free-body diagrams. Here, you'll get a better understanding of what Newton's third law means, as well as practice both drawing and interpreting free-body diagrams.
7. Practice Applying Newton's First Law
This lesson introduces the reader to Newton's First Law, gives real world examples, and provides problems to show how we can use it to solve for unknown forces.
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Other chapters within the Physics 101: Intro to Physics course
- Intro to Physics
- Overview of Vectors
- Overview of Kinematics
- Overview of Forces
- Overview of Gravity
- Basics of Newton's Second Law
- Basics of Newton's Third Law
- Energy and Work in Physics
- Overview of Linear Momentum in Physics
- Basics of Rotational Motion
- Waves in Physics
- Sound & Light in Physics
- Basics of Optics
- Fluid Dynamics in Physics
- Basics of Thermodynamics in Physics
- Overview of Electrostatics
- Overview of Magnetism
- Basics of Nuclear Physics
- Studying for Physics 101