About This Chapter
Basics of Newton's Second Law - Chapter Summary
Gain a better understanding of Newton's second law of motion with these simple and engaging physics lessons. Our expert instructors provide an overview of the law, as well as information regarding air resistance, free fall and free-body diagrams concepts. Following each lesson is a short quiz, and the chapter concludes with a multiple-choice exam. We've made the chapter available at any time so you can study whenever it's convenient. If you have any questions, simply reach out to our instructors online. Finishing this chapter will help you:
- Explain Newton's second law of motion
- Describe the relationship between force and acceleration
- Assess the relationship between air resistance and free fall
- Interpret force and free-body diagrams
- Solve motion problems using free-body diagrams
1. Overview of Newton's Second Law of Motion
Have you ever had to push a broken-down car? Hopefully, the answer is no but if you have, you definitely know that the lighter the car, the easier the job. In this lesson, we learn why that is the case.
2. 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.
3. Air Resistance and Free Fall
Through experiments by Galileo and Newton, we can understand why all objects in free-fall experience the same acceleration, ''g''. We can also see why air resistance affects a falling object's velocity and how this can lead to a falling object reaching a terminal velocity.
4. Overview of Force & Free-Body Diagrams
After completing this lesson, you will be able to explain what a free-body force diagram is, some of the rules associated with them, and what needs to be considered when drawing these diagrams.
5. How to Use Free-Body Diagrams to Solve Motion Problems
The free-body diagram is a powerful way to analyze forces in a scenario. This lesson describes the rules you should follow when using a free-body diagram, and includes multiple examples modeling how to solve force problems.
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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 First 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