# Ch 17: GACE Physics: Rotational Motion

### About This Chapter

## GACE Physics: Rotational Motion - Chapter Summary

As part of your preparations for the GACE Physics exam, these lessons can help you review topics that you may be tested on. In specific, this chapter will address the following:

- Differences and similarities between translational and rotational motion
- Applications of equations that determine the qualities of kinematics
- Work, power and kinetic energy of rotational dynamics, rotational inertia, torque and speed change
- Comparisons and contrasts of angular momentum versus linear momentum and their conservation
- The parallel-axis theorem and the moment of inertia in rolling motion

Our lesson transcripts can be used as a guide to map out your studying! Each video is equipped with our tagging system so you can directly jump to major study points.

### Objectives of the GACE Physics: Rotational Motion Chapter

The GACE Physics exam consists of two subtests. The material covered in this chapter is based on the Mechanics subarea, which constitutes 60% of the Test I portion. Both Test I and II will assess your knowledge and understanding of scientific concepts in order to determine your teaching ability and eligibility for middle or high school science courses in the state of Georgia. You may use our self-assessment quizzes provided at the end of each lesson to test your comprehension of the information covered on the exam and also give you insight to the types of questions you'll actually see on the day of the test.

### 1. 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.

### 2. Rotational Kinematics: Definition & Equations

After watching this lesson, you should be able to explain what kinematics is, give a rotational variable that corresponds to each linear kinematic variable, and solve problems using rotational kinematics equations. A short quiz will follow.

### 3. Five Kinematics Quantities & the Big 5 Equations

After watching this lesson, you will be able to list the five kinematics variables in rotational motion and use the five equations of constant acceleration to solve problems involving rotational motion. A short quiz will follow.

### 4. Torque: Concept, Equation & Example

After watching this lesson, you will be able to explain what torque is conceptually and mathematically and use both the equation and Newton's First Law for rotation to solve problems involving torque. A short quiz will follow.

### 5. Rotational Inertia & Change of Speed

After watching this lesson, you will be able to explain what rotational inertia is, describe how it makes it harder to change the speed of rotation, and solve rotational inertia problems. A short quiz will follow.

### 6. The Parallel-Axis Theorem & the Moment of Inertia

After watching this lesson, you will be able to explain what the parallel axis theorem is and how it is used. You will also be able to use the theorem to solve problems. A short quiz will follow.

### 7. Kinetic Energy of Rotation

After watching this lesson, you will be able to explain what kinetic energy of rotation is, provide the equation to calculate it, and solve simple kinetic energy of rotation problems. A short quiz will follow.

### 8. Rolling Motion & the Moment of Inertia

After watching this lesson, you should be able to figure out the moment of inertia of an object as it rolls down a ramp and compare it to a theoretical value. A short quiz will follow.

### 9. Work & Power in Rotational Motion

After watching this lesson, you will be able to explain what work and power are in the context of rotational motion and use equations to solve problems involving rotational work and power. A short quiz will follow.

### 10. Angular Momentum vs. Linear Momentum

After watching this lesson, you will be able to explain the difference between angular and linear momentum and solve problems using angular momentum equations. A short quiz will follow.

### 11. 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.

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### Other Chapters

Other chapters within the GACE Physics (530): Practice & Study Guide course

- GACE Physics: History & Nature of Science
- GACE Physics: Science & Society
- GACE Physics: Role in Daily Life & the Environment
- GACE Physics: Scientific Inquiry
- GACE Physics: Lab Safety Procedures & Hazards
- GACE Physics: Scientific Measurement & Data
- GACE Physics: Math for Physics
- GACE Physics: Properties of Matter
- GACE Physics: Kinematics
- GACE Physics: Force & the Laws of Motion
- GACE Physics: Oscillations
- GACE Physics: Laws of Gravitation
- GACE Physics: Principles of Fluids
- GACE Physics: Linear Momentum
- GACE Physics: Work & Energy
- GACE Physics: Equilibrium & Elasticity
- GACE Physics: Thermodynamics
- GACE Physics: Atoms
- GACE Physics: Modern & Nuclear Physics
- GACE Physics: Relativity
- GACE Physics: Electrostatics
- GACE Physics: Magnetism
- GACE Physics: Electric Circuits
- GACE Physics: Waves, Sound & Light
- GACE Physics: Wave Optics
- GACE Physics: Energy Production
- GACE Physics Flashcards