About This Chapter
GACE Physics: Force & the Laws of Motion - Chapter Summary
See what makes our instructors qualified to make your study strategies more efficient and enhance your existing practical knowledge of the laws of motion and force. This chapter will help you prepare for the GACE Physics assessment by addressing these topics:
- Newton's laws of motion
- Differences between inertia and mass
- States of motion and velocity
- Different types of force
- Air resistance and free fall
- Free-body diagrams
- Types of friction
- Inclined planes
Our highly accessible video lessons are equipped with a unique tagging system that makes it easy for you to jump to the topics you need to study. You can complete the chapter exam once you've finished the last lesson quiz.
1. Newton's First Law of Motion: Examples of the Effect of Force on Motion
Newton's first law, the law of inertia, states that an object will remain at rest or in motion unless acted upon by another force. Learn about whether Newton's first law applies to liquids or to human bodies, as well as whether it is applicable in space.
2. Distinguishing Between Inertia and Mass
Inertia is an object's capacity in resisting change of motion, whereas mass is the amount of matter contained. Explore each of these concepts and learn to distinguish them and their properties in the real world.
3. Mass and Weight: Differences and Calculations
Mass is the amount of stuff, or matter, that an object contains, while weight is the force on that object because of gravity. Learn the differences between mass and weight, how to calculate them, and how to perform conversions using Newtons and kilograms.
4. State of Motion and Velocity
Motion describes movement, and velocity describes how fast and in which direction. Explore the state of motion, properties of speed and velocity, and learn how the concept that ~'motion is relative~' applies to travel.
5. Force: Definition and Types
A force is the push and pull objects exert on each other. Discover types, both contact and non-contact forces, through examples including different measures used to calculate them.
6. Forces: Balanced and Unbalanced
Forces, the push-pull interaction of objects, are often balanced in their size and opposed in direction--but not always! Learn examples of both balanced, and unbalanced forces, and the expected physics results from an encounter.
7. Free-Body Diagrams
Forces are represented in free-body vector diagrams. Understand forces and vectors, define free-body diagrams, and explore examples of free-body diagrams and how they work.
8. Net Force: Definition and Calculations
The net force is the difference between two forces that are acting on an object. Understand the definition of net force in relation to forces and vectors, explore how to calculate net force, and examine how net force changes the state of motion and body-free diagrams.
9. Newton's Second Law of Motion: The Relationship Between Force and Acceleration
Newton's second law of motion is related to acceleration and force. Learn about net force, implications for this particular law of motion, and calculations for acceleration and force for moving objects.
10. Determining the Acceleration of an Object
Acceleration is the rate of change in an object's velocity. Learn how to calculate acceleration using inertia, velocity, and time, and see how objects accelerate in free fall.
11. Determining the Individual Forces Acting Upon an Object
The individual forces that act upon an object are gravity, normal force, friction, air resistance, applied force, tension, spring force, electric force, and magnetic force. Explore each of these types of forces and analyze them through free-body diagrams.
12. Air Resistance and Free Fall
Air resistance is the force of friction of air that deters the acceleration of objects in free fall. Explore this concept through the ratio of force and mass, and how air resistance determines an object's terminal velocity.
13. Newton's Third Law of Motion: Examples of the Relationship Between Two Forces
Newton's third law of motion states that forces come in pairs. Learn about how this law is applied in interactions between objects both on Earth and in space.
14. Newton's Laws and Weight, Mass & Gravity
Gravity, which is the pull between two objects that have mass, is a force, which causes different objects to accelerate as they fall. Explore the differences between Newton's laws of weight, mass, and gravity, including how to calculate them, how gravity affects them, and how they are commonly misconceived.
15. Identifying Action and Reaction Force Pairs
Newton's second and third laws of motion state how action and reaction force pairs affect objects' interactions with each other. Explore how forces come in pairs and identify action and reaction, the effect of the forces, and how action equals reaction.
16. The Normal Force: Definition and Examples
In physics, normal force refers to the contact force that occurs when one object is touching another object, such as when a gallon of milk is set on a countertop. Explore the definition and examples of the normal force, and review how normal force occurs on a flat surface as well as on an inclined plane.
17. Friction: Definition and Types
Friction is the force that resists motion between two objects or surfaces that are in contact with each other. Learn about the definition of friction, discover the two types of friction -- static friction and sliding friction, and explore their differences.
18. Inclined Planes in Physics: Definition, Facts, and Examples
In physics, an inclined plane is a tilted, or sloping surface, that attaches a higher elevation to a lower elevation. Explore the definition, facts, and examples of inclined planes in physics, learn about tilted surfaces, determining net force, how friction affects net force, and discover the relationship between gravity and normal force.
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Other chapters within the GACE Physics (530) Prep course
- About the GACE Test
- GACE Physics: History & Nature of Science
- GACE Physics: Science & Society
- GACE Physics: Role in Daily Life & the Environment
- GACE Physics: Scientific Inquiry
- GACE Physics: Lab Safety Procedures & Hazards
- GACE Physics: Scientific Measurement & Data
- GACE Physics: Math for Physics
- GACE Physics: Properties of Matter
- GACE Physics: Kinematics
- GACE Physics: Oscillations
- GACE Physics: Laws of Gravitation
- GACE Physics: Principles of Fluids
- GACE Physics: Linear Momentum
- GACE Physics: Work & Energy
- GACE Physics: Equilibrium & Elasticity
- GACE Physics: Rotational Motion
- GACE Physics: Thermodynamics
- GACE Physics: Atoms
- GACE Physics: Modern & Nuclear Physics
- GACE Physics: Relativity
- GACE Physics: Electrostatics
- GACE Physics: Magnetism
- GACE Physics: Electric Circuits
- GACE Physics: Waves, Sound & Light
- GACE Physics: Wave Optics
- GACE Physics: Energy Production
- GACE Physics Flashcards