Ch 20: General Science: Physics & Motion

About This Chapter

Use this chapter to prepare for questions on the AEPA General Science exam. Explore this chapter's entertaining lessons on the different concepts and properties of physical motion.

AEPA General Science: Physics & Motion - Chapter Summary

Watch the lessons of this chapter to prepare for exam questions about the properties of physical motion and the concepts that describe them. Follow along with our expert instructors as they discuss:

  • Concepts and formulas for speed and velocity
  • Equations for acceleration
  • Time and velocity
  • Calculations for distance and displacement
  • Formulas for linear momentum
  • Theorems for momentum and impulse
  • Difference between scalars and vectors
  • Formulas for the acceleration of gravity

Knowledgeable instructors will present these subjects to you using conversational language. You can study with the help of a computer, tablet or smartphone. If you find topics that confuse you, simply ask our instructors for clarification so that you can master the material presented in this chapter before exam day.

AEPA General Science: Physics & Motion Chapter Objectives

The National Evaluation Series (NES) General Science is a computer-based certification exam used to measure prospective educators' understanding of the natural sciences before they are certified as science teachers. For this exam, you will complete 150 multiple-choice questions in a three-hour time span. Of the material covered in this exam, 37% will test your understanding of topics in the Physical Science content domain, including the concept of motion. This chapter will help you prepare for some questions by aiding in your review of the properties of physical motion.

10 Lessons in Chapter 20: General Science: Physics & Motion
Test your knowledge with a 30-question chapter practice test
Speed and Velocity: Concepts and Formulas

1. Speed and Velocity: Concepts and Formulas

Did you know that an object's speed and velocity may not be the same? This lesson describes the concepts of speed and velocity relating to objects in motion. We'll look at a specific example to help learn how to calculate both speed and velocity.

Acceleration: Definition, Equation and Examples

2. Acceleration: Definition, Equation and Examples

Acceleration can be a tricky topic for many students who tend to get hung up on an object's speed. In this lesson, we will explore the common aspects of acceleration and why speed is not always important.

Determining the Acceleration of an Object

3. Determining the Acceleration of an Object

Acceleration is a change in an object's state of motion. A few variables need to be identified to calculate an object's acceleration, but once we have those values, we can put them into a simple equation to find out how quickly or slowly an object's velocity is changing.

Distance and Displacement in Physics: Definition and Examples

4. Distance and Displacement in Physics: Definition and Examples

Distance and displacement might seem like similar terms but in physics, understanding the difference can mean getting a question right instead of wrong. In this lesson, we will define these terms and illustrate how easy it is to confuse the two.

Velocity vs. Time: Determining Displacement of an Object

5. Velocity vs. Time: Determining Displacement of an Object

There is a lot of information you can determine by looking at a velocity vs. time graph. In this lesson, we will use a little geometry to calculate the displacement of the object represented by the graph.

Linear Momentum: Definition, Equation, and Examples

6. 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.

Momentum and Impulse: Definition, Theorem and Examples

7. 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.

Conservation of Linear Momentum: Formula and Examples

8. 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.

Scalars and Vectors: Definition and Difference

9. Scalars and Vectors: Definition and Difference

In this lesson, we will examine scalars and vectors, learn why it is important to know the difference between the two and why remembering to add a direction to many of your exam answers could be the reason you get it right or wrong.

The Acceleration of Gravity: Definition & Formula

10. The Acceleration of Gravity: Definition & Formula

In this lesson, we will introduce the acceleration due to gravity. Objects in free fall are one of the few real world examples of straight line motion with constant acceleration, so they are commonly used when learning kinematics.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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Other Chapters

Other chapters within the AEPA General Science (NT311): Practice & Study Guide course

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