About This Chapter
STAAR Science - Grade 8: Force & Motion - Chapter Summary
To help your student(s) improve their understanding of force, inertia and motion have them work through these short and engaging lessons. After these lessons, your student(s) should be better prepared to answer questions on the STAAR Science - Grade 8 exam regarding:
- The definition and types of force
- Newton's laws of motion
- Unbalanced force and how it can cause motion
- Calculations for force and motion
- Definitions and differences between speed, velocity and acceleration
- Calculations for average speed and distance
- Graphs that represent the motion, position and speed of an object
Your student(s) can further improve their understanding of force and motion by reading the lesson transcripts. They can also test their understanding of the lessons and identify topics they don't understand by taking the lesson quizzes. If you or your student(s) comes up with questions regarding lesson topics, use the teacher tabs of the lessons to ask our professional instructors for clarification.
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.
2. Action and Reaction Forces: Law & Examples
Action force is force acting in one direction. Reaction force is force acting in the opposite direction. Learn more about Newton's Third Law as it explains action and reaction forces through several examples, and test your knowledge with quiz questions.
3. Unbalanced Force: Definition & Example
Unbalanced forces are forces that cause a change in the motion of an object. Learn more about how to identify balanced and unbalanced forces through several examples and test your knowledge with quiz questions.
4. What Is Motion? - Definition & Equations
After watching this video, you will be able to explain what motion is and use basic equations of motion to solve problems. A short quiz will follow to test your knowledge.
5. Speed, Velocity & Acceleration
Speed and velocity are not the same thing. Objects' speed and velocity can be identical or very different, depending on their directions of motion. In this article, learn more about these foundational physics concepts, including acceleration and free-falling objects.
6. Laws of Inertia: Definition & Formula
Inertia is the tendency of an object to stay at rest or in motion. Learn more about Newton's first law as it explains how forces acting on an object are related to the object's mass and motion through several examples, and test your knowledge with quiz questions.
7. 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.
8. Distance, Time & Average Speed: Practice Problems
After watching this video, you will be able to explain what distance is, explain how it relates to change in position, and calculate the average speed in various situations. A short quiz will follow.
9. Graphing the Motion of Objects: Physics Lab
After watching this lesson, you will be able to measure the motion of an object and plot position-time and velocity-time graphs based on your data. A short quiz will follow.
10. Graphing Position & Speed vs Time: Practice Problems
After watching this video, you should be able to explain what position and speed are. You should also be able to plot position vs. time and speed vs. time graphs. A short quiz will follow.
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Other chapters within the STAAR Science - Grade 8: Test Prep & Practice course
- STAAR Science - Grade 8: Matter & Energy
- STAAR Science - Grade 8: The Periodic Table
- STAAR Science - Grade 8: Chemical Formulas & Equations
- STAAR Science - Grade 8: Work & Energy
- STAAR Science - Grade 8: Earth & Space
- STAAR Science - Grade 8: Exploration of the Universe
- STAAR Science - Grade 8: Earth's Structure & Topography
- STAAR Science - Grade 8: Atmospheric Interactions
- STAAR Science - Grade 8: Living Organisms
- STAAR Science - Grade 8: Genetics
- STAAR Science - Grade 8: Ecosystems & the Environment
- STAAR Science - Grade 8: Scientific Processes & Tools
- STAAR Science - Grade 8 Flashcards