Ch 8: Equilibrium and Elasticity

About This Chapter

Watch video lessons and learn about the concepts of equilibrium and elasticity. The quizzes that follow each lesson can help you gauge your comprehension of the materials.

Equilibrium and Elasticity - Chapter Summary and Learning Objectives

Equilibrium and elasticity are key introductory concepts in physics. In this series of lessons, you'll learn about different types of equilibrium and their characteristics. You'll then be able to apply this knowledge to understanding how simple machines work, how factors like gravity affect equilibrium and elasticity and how to solve problems where you'll need to measure equilibrium and elasticity. In these lessons, you'll learn things like:

  • Types of equilibrium
  • Types of stability
  • Types of simple machines
  • How to solve equations that include calculating equilibrium and elasticity

Video Objective
Equilibrium: Translational & Rotational Describe types of equilibrium and the conditions they present.
Stability & Center of Gravity Define types of stability and how they relate to gravity.
Statics Problem-Solving Methods & Applications Explain how to solve static equilibrium equations.
Simple Machines: Lever, Inclined Plane & Pulley Identify and explain the mechanical advantages of simple machines.
Tensile and Compressive Stress and Strain Equations Describe elastic modulus and Hooke's Law.
Shear and Bulk Stress and Strain Equations Describe equations and moduli related to the concepts of shear, bulk stress and strain.

6 Lessons in Chapter 8: Equilibrium and Elasticity
Test your knowledge with a 30-question chapter practice test
Equilibrium: Translational & Rotational

1. Equilibrium: Translational & Rotational

Equilibrium is the state of being balanced physically, and it is an important factor for being in motion. Explore the relationship between motion and equilibrium, focusing on the two types: translational and rotational.

Stability & Center of Gravity

2. Stability & Center of Gravity

Without stability, objects would constantly be prey to the negative effects of gravity and fall over with the slightest applied force. Learn about the definition of stability, its relationship with an object's center of gravity, and the three states of stability.

Statics Problem-Solving Methods & Applications

3. Statics Problem-Solving Methods & Applications

A statics problem is solved when the sums of the forces or torques manipulating an object in static equilibrium are determined. Learn more about static equilibrium and the methods and applications of the seven-step process used to solve statics problems.

Simple Machines: Lever, Inclined Plane & Pulley

4. Simple Machines: Lever, Inclined Plane & Pulley

Simple machines make use of mechanical means to apply force and perform work. Learn about different types of simple machines such as the lever, inclined plane, and pulley, and determine the formula for their mechanical advantage.

Tensile and Compressive Stress and Strain Equations

5. Tensile and Compressive Stress and Strain Equations

Tensile and compressive stress and strain equations are used to find out how stiff a material is. Learn about stress and strain, tension and compression, elastic modulus and Hooke's law, and the stress-strain curve.

Shear and Bulk Stress and Strain Equations

6. Shear and Bulk Stress and Strain Equations

Bulk stress causes a change in the volume of the object or medium and is caused by forces acting on the body from all directions, perpendicular to its surface. Shear stress is caused by forces acting along the object's two parallel surfaces. Learn more about bulk and shear stress, strain equations and what shear modulus is.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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