About This Chapter
How It Works:
- Identify the lessons in Prentice Hall Conceptual Physics' Mechanical Equilibrium chapter with which you need help.
- Find the corresponding video lessons within this companion course chapter.
- Watch fun videos that cover the mechanical equilibrium topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Types of force
- How to calculate net force
- Translational and rotational equilibrium
- Normal force
- Types of vectors
- Vector addition and subtraction
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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. 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.
3. Equilibrium: Translational & Rotational
Learn about the requirements for an object to be under translational or rotational equilibrium. Then work through a couple example problems that show how we can use translational and rotational equilibrium to find the forces acting on an object.
4. The Normal Force: Definition and Examples
The normal force is also called the contact force because it only exists when objects are touching. In this lesson, we will investigate what the normal force is and how to calculate it on flat and inclined surfaces.
5. What Is a Vector? - Definition & Types
After watching this lesson, you will be able to explain what vectors are in physics, give some examples of vectors and have a basic idea of how they can be manipulated mathematically. A short quiz will follow.
6. Vector Addition (Geometric Approach): Explanation & Examples
After watching this video, you will be able to explain why we might need to add two vectors and, given magnitudes and directions, add two vectors using geometric methods. A short quiz will follow.
7. Vector Subtraction (Geometric): Formula & Examples
After watching this lesson, you will be able to subtract vectors geometrically and give examples of how that process might be used in physics. A short quiz will follow.
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Other chapters within the Prentice Hall Conceptual Physics: Online Textbook Help course
- Chapter 1: About Science
- Chapter 3: Newton's First Law of Motion-Inertia
- Chapter 4: Linear Motion
- Chapter 5: Projectile Motion
- Chapter 6: Newton's Second Law of Motion - Force and Acceleration
- Chapter 7: Newton's Third Law of Motion - Action and Reaction
- Chapter 8: Momentum
- Chapter 9: Energy
- Chapter 10: Circular Motion
- Chapter 11: Rotational Equilibrium
- Chapter 12: Rotational Motion
- Chapter 13: Universal Gravitation
- Chapter 14: Satellite Motion
- Chapter 15: Special Relativity - Space and Time
- Chapter 16: Relativity - Momentum, Mass, Energy, and Gravity
- Chapter 17: The Atomic Nature of Matter
- Chapter 18: Solids
- Chapter 19: Liquids
- Chapter 20: Gases
- Chapter 21: Temperature, Heat, and Expansion
- Chapter 22: Heat Transfer
- Chapter 23: Change of Phase
- Chapter 24: Thermodynamics
- Chapter 25: Vibrations and Waves
- Chapter 26: Sound
- Chapter 27: Light
- Chapter 28: Color
- Chapter 29: Reflection and Refraction
- Chapter 30: Lenses
- Chapter 31: Diffraction and Interference
- Chapter 32: Electrostatics
- Chapter 33: Electric Fields and Potential Energy
- Chapter 34: Electric Current
- Chapter 35: Electric Circuits
- Chapter 36: Magnetism
- Chapter 37: Electromagnetic Induction
- Chapter 38: The Atom and the Quantum
- Chapter 39: The Atomic Nucleus and Radioactivity
- Chapter 40: Nuclear Fission and Fusion