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Ch 5: Holt Physical Science Chapter 5: Matter in Motion

About This Chapter

The Matter in Motion chapter of this Holt Physical Science Textbook Companion Course helps students learn essential physical science lessons on matter in motion. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Matter in Motion textbook chapter.

How it works:

  • Identify the lessons in the Holt Physical Science Matter in Motion chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the matter in 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:

  • State of motion and velocity
  • Speed and velocity
  • Acceleration
  • Types of forces
  • Types of friction
  • Newton's laws and weight, mass and gravity
  • The Law of Universal Gravitation

Holt is a registered trademark of Holt, Rinehart and Winston, which is not affiliated with Study.com.

13 Lessons in Chapter 5: Holt Physical Science Chapter 5: Matter in Motion
State of Motion and Velocity

1. 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.

Speed and Velocity: Concepts and Formulas

2. Speed and Velocity: Concepts and Formulas

Did you know that an object's speed and velocity may not be the same? This lesson describes the concepts of speed and velocity relating to objects in motion. We'll look at a specific example to help learn how to calculate both speed and velocity.

Using Velocity vs. Time Graphs to Describe Motion

3. Using Velocity vs. Time Graphs to Describe Motion

In this lesson, we will look at an example of a velocity vs. time graph. By examining the shape of the graph, it is possible to accurately describe the motion of an object, even if that motion is very complex.

What is Acceleration? - Definition and Formula

4. What is Acceleration? - Definition and Formula

This lesson describes the difference between speed, velocity and acceleration. Examples are used to help you understand the concept of acceleration and learn to calculate acceleration with a mathematical formula.

Determining Acceleration Using the Slope of a Velocity vs. Time Graph

5. Determining Acceleration Using the Slope of a Velocity vs. Time Graph

In this lesson, we will learn how to use the slope of the line on a velocity vs. time graph to calculate the acceleration of an object in straight line motion.

Force: Definition and Types

6. 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

7. 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

8. 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.

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.

Characteristics & Effects of Friction

10. Characteristics & Effects of Friction

Friction is the force that resists motion. An object's weight and surface material can affect the amount of friction present. Learn how to increase and decrease friction as well as the difference between static and kinetic friction.

Newton's Laws and Weight, Mass & Gravity

11. 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 Law of Universal Gravitation: Definition, Importance & Examples

12. The Law of Universal Gravitation: Definition, Importance & Examples

Gravity is what pulls us toward Earth, but it's also what pulls Earth toward us. This is explained by the law of universal gravitation, which describes how all objects in the universe have this important force between them.

The Effects of Mass & Distance on Gravity

13. The Effects of Mass & Distance on Gravity

Does gravity have you down? Well, you are not alone. Gravity is the force that pulls objects with mass toward each other. It is what holds you to the earth. Learn how the strength of gravity is affected by mass and distance.

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