# Ch 8: Momentum & Rotational Motion

### About This Chapter

### 1. Linear Momentum: Definition, Equation, and Examples

Any moving object has momentum, but how much momentum it has depends on its mass and velocity. In this lesson, you'll identify linear momentum, as well as see examples of how an object's momentum is affected by mass and velocity.

### 2. Momentum and Impulse: Definition, Theorem and Examples

To understand how a change in momentum affects an object, we look to impulse. In this lesson, you'll understand how impulse describes an object's change in momentum, as well as how changing the force or time of the impulse can have very different outcomes.

### 3. Conservation of Linear Momentum: Formula and Examples

The law of conservation of momentum tells us that the amount of momentum for a system doesn't change. In this lesson, we'll explore how that can be true even when the momenta of the individual components does change.

### 4. Calculating Center of Mass: Definition, Equation & Example

What is the center of mass and how is it calculated? Is it the same as the centroid or center of gravity? Learn how to find the center of mass of objects in one-, two-, even three-dimensional space!

### 5. Differences Between Translational & Rotational Motion

After watching this lesson, you'll be able to explain the difference between translational and rotational motion, explain how translational quantities are replaced by rotational ones in physics and apply Newton's First Law to rotation. A short quiz follows.

### 6. Torque in Physics: Equation, Examples & Problems

After watching this video, you will be able to explain what torque is and use an equation to calculate torque in simple situations. A short quiz will follow.

### 7. Conservation of Angular Momentum

After watching this video you will be able to explain what is meant by conservation of angular momentum. You will also be able to use this concept along with the equation to solve problems. A short quiz will follow.

### 8. 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.

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### Other Chapters

Other chapters within the FTCE Physics 6-12 (032): Test Practice & Study Guide course

- FTCE Physics: Scientific Investigation
- FTCE Physics: Mathematics of Physics
- Vectors, Scalar Quantities & Rate of Change
- FTCE Physics: Thermodynamics
- Kinematics & Graphing
- Basics of Motion
- Simple Harmonic Motion
- Laws of Gravity & Motion
- Fluid Mechanics in Physics
- Waves & Sound in Physics
- Light & Optics Overview
- FTCE Physics: Electricity
- Electrical Circuits in Physics
- FTCE Physics: Magnetism
- FTCE Physics: Modern Physics
- Nuclear Processes & Calculations
- FTCE Physics 6-12 Flashcards