About This Chapter
OAE Physics: Force & the Laws of Motion - Chapter Summary
This chapter has been assembled to help you review what you know about Newton's laws of motion, terms and equations used to describe the properties of motion and the different forces that affect motion. Watch these lesson videos to help you prepare for related question on the Ohio Assessments for Educators (OAE) Physics exam. Each lesson is taught by a professional instructor so that you can get a quality review of the material and prepare yourself for questions about:
- Newton's first, second and third laws of motion
- The relationship between inertia and mass
- Calculations for mass and weight
- Balanced and unbalanced forces
- Using free-body calculations
- Calculations for net force
- Velocity and acceleration
- Effects of air resistance and friction
Ensure you retain the information presented in this chapter by completing the lesson worksheets and quizzes. Use your worksheets as a guide as you review the lesson and determine what topics you haven't mastered with the results from your lesson quizzes. Once you've found out what topics you don't understand, go back to the lesson videos with video tags to improve your understanding of them. Additionally, if you would benefit from an alternative way of reviewing the material, try reading the lesson transcripts which will present you with a written out line of the lessons.
OAE Physics: Force & the Laws of Motion Chapter Objectives
The objective of the OAE Physics test is to measure future educators' mastery over the field of physics before granting them certification as physics teachers in the state of Ohio. This computer-administered certification exam achieves this objective through a series of 150 multiple-choice questions. On test day, you will be asked to complete these questions in a testing session lasting three hours and 45 minutes. Be prepared for 28% of these questions to be about mechanics, which includes Newton's laws of motion, the equations used to describe the properties of motion, and the forces that affect motion.
1. Distinguishing Between Inertia and Mass
Mass and inertia are both related to the amount of matter an object has, but they aren't exactly the same thing. In this video lesson, you'll see how mass affects an object's inertia, which in turn affects that object's motion.
2. Mass and Weight: Differences and Calculations
We often talk about mass and weight as if they are the same. While they are proportional to each other, they are not, in fact, the same. In this video lesson, you will learn to distinguish between the two, as well as convert one to the other.
3. State of Motion and Velocity
An object's state of motion describes how it is moving. But there are many ways we can describe motion, such as speed and velocity. This motion is relative to other objects around it, such as the earth, the sun, and even other stars in our galaxy.
4. 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.
5. 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.
6. 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.
7. 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.
8. Newton's Second Law of Motion: The Relationship Between Force and Acceleration
This lesson defines Newton's second law of motion. Examples are used to illustrate how unbalanced forces cause objects to accelerate. The examples are used to practice calculating acceleration and force for objects in motion.
9. 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.
10. 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.
11. 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.
12. Newton's Third Law of Motion: Examples of the Relationship Between Two Forces
This lesson describes Newton's third law of motion. Examples are provided to illustrate how interacting objects experience forces. The lesson explains how objects accelerate as a result of force. Applications of Newton's third law are illustrated in nature, machines, and space.
13. 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.
14. 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.
15. Friction: Definition and Types
You experience friction all the time, and you should be glad you do! Friction helps keep stationary objects in place as well as slow moving objects down as they slide across a surface. This lesson identifies what friction is and explains the two ways we find this force on earth.
16. 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.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Ohio Assessments for Educators - Physics (035): Practice & Study Guide course
- OAE Physics: Scientific Research
- OAE Physics: Scientific Data Analysis
- OAE Physics: Laboratory Safety
- OAE Physics: Science in the Past & Present
- OAE Physics: Rotational Motion, Collisions & Conservation
- OAE Physics: Laws of Gravitation
- OAE Physics: Fluid Mechanics
- OAE Physics: Work, Energy & Power
- OAE Physics: Linear & Angular Momentum
- OAE Physics: Oscillations
- OAE Physics: Electrostatics
- OAE Physics: Electromagnetism
- OAE Physics: Circuit Overview
- OAE Physics: Waves & Wave Motion
- OAE Physics: Sound & Sound Waves
- OAE Physics: Electromagnetic Waves
- OAE Physics: Light, Mirrors & Lenses
- OAE Physics: Kinetic Theory & Thermodynamics
- OAE Physics: Modern Physics
- OAE Physics: Nuclear Physics
- Ohio Assessments for Educators Physics Flashcards