About This Chapter
Michigan Merit Exam: Forces in Physics - Chapter Summary
Prepare for Michigan Merit Exam test questions on physics-related topics. Learn about the ways in which matter interacts with matter in this ever-moving world and discover how force applied to an object changes the nature of that object's motion. The topics covered by the video lessons in this chapter include:
- Newton's three laws of motion
- Definition and types of force
- Balanced and unbalanced forces
- Net force calculations
- Determination of an object's acceleration
- Determination of individual forces acting on objects
- Action and reaction
- Centripetal force
- Orbits, gravity, and energy
- Newton's law of gravitation
- Gravity, weight, and mass
View and review the video lessons as needed to maximize your understanding of the material. You can also use the interactive timeline feature to skip straight to the video topic you want to see again. Comprehension is further enhanced with a written transcript of the lesson as well as the ability to ask your teacher questions using the teacher tab. To increase lesson retention even more, you can use the chapter quizzes and practice exams, as well.
Michigan Merit Exam: Forces in Physics Objectives
The Michigan Department of Education uses the Michigan Merit Exam every spring to gauge the academic development of 11th-grade public-school students in the state. The test is three-pronged: the ACT Plus Writing exam, three portions of the ACT WorkKeys exam, and Michigan's own M - Step test. This chapter is relevant to both the ACT Plus Writing and the M - Step test as both contain physics components. The paper-and-pencil ACT science test contains 40 multiple-choice questions and lasts 35 minutes. The computer-based M - Step science session isn't strictly timed but is estimated to last almost an hour.
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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. Centripetal Force: Definition, Formula & Examples
When an object is traveling in a circular path, centripetal force is what keeps it fixed in that path. Learn more about this force, how it is calculated and examples of its occurrence. A quiz is provided to test your learning.
11. How Orbits Are Influenced by Gravity & Energy
This lesson will explain how potential energy, kinetic energy, speed, and gravity are linked to the orbital motion of planets in our solar system. It will also define aphelion and perihelion.
12. Newton's Law of Gravitation: Definition & Examples
This lesson explains how gravity works mathematically and teaches you how to use Newton's Law of Gravitation to solve problems. A short quiz will follow.
13. 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.
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Other chapters within the Michigan Merit Exam - Science: Test Prep & Practice course
- Michigan Merit Exam: Scientific Research Methods
- Michigan Merit Exam: Earth Systems Overview
- Michigan Merit Exam: Types of Energy
- Michigan Merit Exam: Biogeochemical Cycles
- Michigan Merit Exam: The Rock Cycle
- Michigan Merit Exam: Earth's Interior Structure
- Michigan Merit Exam: Plate Tectonics
- Michigan Merit Exam: Earthquakes & Volcanoes
- Michigan Merit Exam: Hydrogeology
- Michigan Merit Exam: Earth's Climate
- Michigan Merit Exam: Climate Change
- Michigan Merit Exam: Severe Weather
- Michigan Merit Exam: Formation of the Universe
- Michigan Merit Exam: The Sun
- Michigan Merit Exam: History of the Earth
- Michigan Merit Exam: Cell Basics
- Michigan Merit Exam: Cell Specialization
- Michigan Merit Exam: Organic Molecules
- Michigan Merit Exam: Maintaining Homeostasis
- Michigan Merit Exam: Cellular Respiration & Photosynthesis
- Michigan Merit Exam: Ecosystems & Populations
- Michigan Merit Exam: Basic Genetics
- Michigan Merit Exam: Basics of DNA
- Michigan Merit Exam: Mitosis & Meiosis
- Michigan Merit Exam: Evolution & Natural Selection
- Michigan Merit Exam: Position, Velocity & Time
- Michigan Merit Exam: Electric Charges
- Michigan Merit Exam: Energy in Physics
- Michigan Merit Exam: Sound & Light Waves
- Michigan Merit Exam: Electric Circuits
- Michigan Merit Exam: Nuclear Reactions
- Michigan Merit Exam: Energy Transfer & Conservation
- Michigan Merit Exam: Atomic Structure
- Michigan Merit Exam: Chemical Changes
- Michigan Merit Exam: Chemical Bonds
- Michigan Merit Exam: Acids & Bases
- Michigan Merit Exam: Carbon Chemistry
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