Ch 4: ScienceFusion Motion, Forces, and Energy Unit 1.4: Gravity & Motion

About This Chapter

The Gravity & Motion chapter of this ScienceFusion Motion, Forces, and Energy Companion Course helps students learn the essential lessons associated with gravity and motion. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Gravity & Motion textbook chapter.

How It Works:

  • Identify the lessons in the ScienceFusion Gravity & Motion chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the gravity and motion topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Reaction and action force pairs
  • Kinds of friction
  • Acceleration of gravity
  • How Earth, the sun and the moon affect tides

ScienceFusion is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

6 Lessons in Chapter 4: ScienceFusion Motion, Forces, and Energy Unit 1.4: Gravity & Motion
Test your knowledge with a 30-question chapter practice test
Identifying Action and Reaction Force Pairs

1. 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.

What Is Gravity? - Definition & Equation

2. What Is Gravity? - Definition & Equation

In this video, you'll learn about the force of gravity and why what goes up must also come down. You'll also learn about the equation for determining the gravitational force between two objects and the rate at which objects accelerate toward Earth.

Newton's Laws and Weight, Mass & Gravity

3. 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.

Friction: Definition and Types

4. 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.

The Acceleration of Gravity: Definition & Formula

5. 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.

How Gravity, the Moon & the Sun Influence Tides

6. How Gravity, the Moon & the Sun Influence Tides

This lesson will define tides, the tidal force, neap tide, and spring tide. It will also talk about how the sun, moon, and Earth interact to produce tidal bulges.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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