Ch 24: Newton's Laws & Gravity - ORELA Middle Grades General Science

About This Chapter

Rediscover Newton's laws and gravity by exploring comprehensive video lessons. Self-assessment quizzes and a chapter exam can test your knowledge of the subject area as you prepare to take the ORELA Middle Grades General Science assessment.

Newton's Laws & Gravity: ORELA Middle Grades General Science - Chapter Summary

In this chapter, you can revisit Newton's laws and gravity to ensure you're prepared to answer related questions on the ORELA Middle Grades General Science assessment. After reviewing the lessons, you will be able to:

  • Discuss the effects of force on motion
  • Explain the differences between mass and weight and understand free-body diagrams
  • Analyze the relationship between force and acceleration
  • Describe the relationship between two forces
  • Offer insight into Newton's laws and gravity, weight and mass
  • Define the acceleration of gravity and friction
  • Determine the acceleration of an object

The video lessons are both informative and entertaining, offering an in-depth look at Newton's laws and gravity with the help of fun visual effects. Watch them from your computer, or on the go via your smartphone or tablet.

Newton's Laws & Gravity: ORELA Middle Grades General Science Chapter Objectives

The topics in this chapter are found in the physical science content domain of the exam, which is one of four total domains. It constitutes approximately 31% of the ORELA Middle Grades General Science assessment. Make the process of preparing for questions in this content domain easy by reviewing the videos or examining specific topics within the videos using timelines. Submit any questions about lessons to our experts.

The assessment is designed to test your comprehension of general science to ensure you're ready to teach the subject in the middle grades classroom. Earning a passing score of 228 or higher can help you secure or enhance your educator licensure. There are 150 multiple-choice questions on the computer-based test, which lasts three hours.

9 Lessons in Chapter 24: Newton's Laws & Gravity - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
Newton's First Law of Motion: Examples of the Effect of Force on Motion

1. Newton's First Law of Motion: Examples of the Effect of Force on Motion

This lesson describes Newton's first law of motion, also known as the law of inertia. The interaction between force and motion is explained. Several examples are used to discuss the implications of this law on earth and in space.

Mass and Weight: Differences and Calculations

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.

Free-Body Diagrams

3. 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.

Newton's Second Law of Motion: The Relationship Between Force and Acceleration

4. 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.

Newton's Third Law of Motion: Examples of the Relationship Between Two Forces

5. 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.

Newton's Laws and Weight, Mass & Gravity

6. Newton's Laws and Weight, Mass & Gravity

Did you know that mass and weight are not the same? This lesson describes the difference between the two as well as the effect of gravity on weight. Examples are used to teach you how to calculate weight based on mass and acceleration of gravity.

The Acceleration of Gravity: Definition & Formula

7. 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.

Determining the Acceleration of an Object

8. 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.

Friction: Definition and Types

9. 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.

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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