Ch 38: CEOE Middle Level Science: Forces

About This Chapter

Take a closer look at forces by exploring the video lessons in this chapter. You can refresh your knowledge with help from expert instructors, then test that knowledge by taking short quizzes as you study for the CEOE Middle Level Science assessment.

CEOE Middle Level Science: Forces - Chapter Summary

This comprehensive overview of forces can help you get reacquainted with air resistance, torque and more as you prepare to answer related questions on the CEOE assessment. Upon completion of this chapter, you will be able to:

  • Define force, the normal force, pressure, torque and net force
  • Explain how to determine the individual forces acting upon an object
  • Describe air resistance and free fall
  • Provide details about identifying action and reaction force pairs
  • Discuss inclined planes in physics and free-body diagrams
  • Share information about balanced and unbalanced forces

You can streamline the process of preparing for the assessment by reviewing the lessons that cover topics you need to study most. Watch videos in any sequence and at any frequency that works best. Also, take advantage of timelines located below the videos that allow you to identify and skip to key topics without watching entire lessons.

11 Lessons in Chapter 38: CEOE Middle Level Science: Forces
Test your knowledge with a 30-question chapter practice test
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.

Determining the Individual Forces Acting Upon an Object

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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.

What is Torque? - Definition, Equation & Calculation

8. 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.

Forces: Balanced and Unbalanced

9. 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.

Free-Body Diagrams

10. Free-Body Diagrams

Forces that act on an object can be drawn through special vector diagrams called free-body diagrams. In this video lesson you'll identify how to correctly represent forces in a free-body diagram through vector arrows and force labels.

Net Force: Definition and Calculations

11. 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.

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.
Not Taken

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