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Ch 24: ORELA General Science: Analyzing Forces

About This Chapter

Review these lessons at your convenience to be fully prepared for ORELA General Science content on forces. The chapter includes definitions and examples for normal force, net force and many other topics for your exam prep.

ORELA General Science: Analyzing Forces - Chapter Summary

You'll be able to gauge your familiarity with the bold key terms in each of the chapter's text lessons as soon as you see them. The main focuses of the chapter which are aligned with ORELA General Science competencies include:

  • Pressure units and conversions
  • Conduction, radiation and convection
  • Hydrostatic pressure
  • Inclined planes in physics
  • Identifying action and reaction force pairs
  • Air resistance and free fall
  • Balanced and unbalanced forces
  • Fluid mass, flow rate and the continuity equation

Each video that you can watch in the chapter is brief and gives you a fun review of these key topics dealing with forces. To confirm your grasp of material before you move on to further lessons in the chapter you can take the readily available practice quizzes.

Objectives of the ORELA General Science: Analyzing Forces Chapter

The ORELA General Science test is designed to evaluate whether your content knowledge is satisfactory according to teacher licensure specifications. The exam questions you'll be answering about the forces info in this chapter are multiple-choice and will be in the physical science area, which is the second out of four content domains on the test. This physical science domain makes up the largest percentage of your test score, amounting to about 37% of the exam's 150 multiple-choice questions.

14 Lessons in Chapter 24: ORELA General Science: Analyzing Forces
Force: Definition and Types

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.

Forces: Balanced and Unbalanced

2. Forces: Balanced and Unbalanced

Forces are needed to start or stop an object's motion, but can also be involved when an object is at rest or already traveling at constant velocity. In this video lesson, you'll identify the difference between balanced and unbalanced forces, understanding how they affect the movement of objects.

Net Force: Definition and Calculations

3. 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.

Determining the Individual Forces Acting Upon an Object

4. Determining the Individual Forces Acting Upon an Object

Objects constantly have forces acting on them whether they are moving or at rest. In this video lesson, you'll understand how to identify the individual forces acting on an object by reviewing the different types of forces and the use of free-body diagrams.

Air Resistance and Free Fall

5. Air Resistance and Free Fall

Through experiments by Galileo and Newton, we can understand why all objects in free-fall experience the same acceleration, ''g''. We can also see why air resistance affects a falling object's velocity and how this can lead to a falling object reaching a terminal velocity.

Identifying Action and Reaction Force Pairs

6. Identifying Action and Reaction Force Pairs

Good things often come in pairs, and forces are no exception. In this lesson you'll explore Newton's second and third laws of motion to understand how action and reaction pairs affect objects interacting with each other.

The Normal Force: Definition and Examples

7. 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.

Inclined Planes in Physics: Definition, Facts, and Examples

8. Inclined Planes in Physics: Definition, Facts, and Examples

If an object is not horizontal to the ground, it may be on an inclined plane. We need to adjust both the calculations and the free-body diagram when determining the net force on an object on an inclined plane. Learn how in this lesson.

Pressure: Definition, Units, and Conversions

9. Pressure: Definition, Units, and Conversions

Have you ever wondered what pressure is and how it gets measured? In this lesson, we are going to define pressure and explain some of the units that are used to express measurements of pressure.

Hydrostatic Pressure: Definition, Equation, and Calculations

10. Hydrostatic Pressure: Definition, Equation, and Calculations

This video lesson will introduce you to hydrostatic pressure in a liquid, as well as provide examples for how to calculate the liquid's pressure at a given depth.

Fluid Mass, Flow Rate and the Continuity Equation

11. Fluid Mass, Flow Rate and the Continuity Equation

Fluids rarely stay put, so we need to understand how they move. In this lesson, you will learn about how the movement of fluids is influenced by the space it passes through, as well as see examples of how to calculate aspects of this movement.

What Are Simple Machines? - Definition, Types & Examples

12. What Are Simple Machines? - Definition, Types & Examples

If you need to move or lift a heavy object, it would be wise to use a simple machine. Though these devices are far from fancy or high-tech, they are extremely helpful for getting work done.

What is Torque? - Definition, Equation & Calculation

13. What is Torque? - Definition, Equation & Calculation

You've probably heard of torque before, maybe while discussing cars. Now learn what it really is, and what it has to do with rotational equilibrium. Then, work through an example problem that combines the two.

Mechanisms of Heat Transfer: Conduction, Convection & Radiation

14. Mechanisms of Heat Transfer: Conduction, Convection & Radiation

There are three main ways that heat is transferred between substances or objects. In this video lesson you'll learn about each one, and identify the differences between them.

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Other Chapters

Other chapters within the ORELA General Science: Practice & Study Guide course

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