# Ch 4: FTCE Physics: Mechanics

### About This Chapter

## FTCE Physics: Mechanics - Chapter Summary

Utilize these physics lessons to improve your comprehension of mechanics and help you study for the FTCE Physics exam. To support your understanding of how to answer related questions on the test, these lessons cover information on topics including:

- Knowing how to graph slopes, tangents, and other basic functions
- Understanding the respective formulas for and difference between velocity and speed
- Defining and determining acceleration
- Assimilating the principles and applications of Newton's three laws of motion
- Solving problems related to the following: motions of physical systems; conservation of linear and angular momentum; the impulse-momentum theorem; orbital motion; depth, density, and pressure; and the center of mass
- Understanding the conservation of mechanical energy
- Differentiating between static and kinetic forces
- Becoming familiar with Archimedes's and Bernoulli's principles

Each of this chapter's tutorials is presented in video format and comprises brief, substantive explanations of the respective subjects, helping you absorb the information and perform well on the FTCE. Lesson summaries and text transcripts are included with every lesson.

### Objectives of the FTCE Physics: Mechanics Chapter

The state of Florida administers the FTCE Physics exam to test potential teachers' preparedness for physics teaching certification. The subjects covered in this Mechanics chapter comprise about 27% of the approximately 90-question exam. The quizzes alongside each lesson can help you determine how well you've assimilated the material and expose you to the kinds of questions the FTCE Physics exam poses.

Among the physics FTCE's exclusively multiple-choice questions are those that involve the examination of a graph, chart, or number line; those that require an answer to a direct question; and those that call for the completion of a provided sentence. Other questions are asked in response to the outline of a situation or case study.

### 1. Graphing Basic Functions

Graphs are just like maps - when you know the language! Review how locations have x and y coordinates similar to latitude and longitude, and how to plot points in the Cartesian plane.

### 2. Slopes and Tangents on a Graph

Hit the slopes and learn how the steepness of a line is calculated. Calculate the slopes between points and draw the tangents of curves on graphs in this lesson.

### 3. 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.

### 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.

### 5. Implications of Mechanics on Objects

Forces act on objects causing them to move. Mechanics is the field of science designated to the study of moving objects. This lesson describes how forces act on objects resulting in motion. Examples are used to describe how forces interact resulting in both simple and complex movement.

### 6. 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.

### 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. 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. 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.

### 10. Momentum and Impulse: Definition, Theorem and Examples

To understand how a change in momentum affects an object, we look to impulse. In this lesson, you'll understand how impulse describes an object's change in momentum, as well as how changing the force or time of the impulse can have very different outcomes.

### 11. Conservation of Mechanical Energy

Energy comes in many forms and for any system can never be created or destroyed. This holds true for mechanical energy, which also obeys this law of conservation of energy. In this video lesson, you'll explore how mechanical energy is converted or transferred between forms and objects.

### 12. Buoyancy: Calculating Force and Density with Archimedes' Principle

Knowledge of the buoyant force is important when trying to understand why some objects float while other objects sink. In this lesson you'll learn about this unique force and how we apply it to various situations using Archimedes' Principle.

### 13. Bernoulli's Principle: Definition and Examples

Understanding how a moving fluid's speed and pressure change as it flows along is not only important for building airplanes but also for backyard fun. In this video lesson you'll learn about Bernoulli's principle and identify some practical applications of this concept.

### 14. 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.

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### Other Chapters

Other chapters within the FTCE Physics 6-12 (032): Test Practice & Study Guide course