A physics textbook you'll never forget once you read it.
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Description
Book Introduction
Understanding through stories
The first introductory physics book ever
This book is both a physics reference and a valuable read.
This book provides explanations of each physics unit along with background information on the names of scientists and formulas, making the story easier to remember.
In this way, this book serves as a reference for understanding the fundamentals of physics, while also fulfilling the role of a reading material that allows one to savor the grand history of physics, achieved by great scientific geniuses who poured their hearts and minds into it.
This is a must-have physics book for those who found physics difficult because they thought it was a subject about memorizing formulas, or for those who were confused by the formulas that appear in physics and absolutely hated it.
Clearly, the image of the subject of physics will change 180 degrees.
The first introductory physics book ever
This book is both a physics reference and a valuable read.
This book provides explanations of each physics unit along with background information on the names of scientists and formulas, making the story easier to remember.
In this way, this book serves as a reference for understanding the fundamentals of physics, while also fulfilling the role of a reading material that allows one to savor the grand history of physics, achieved by great scientific geniuses who poured their hearts and minds into it.
This is a must-have physics book for those who found physics difficult because they thought it was a subject about memorizing formulas, or for those who were confused by the formulas that appear in physics and absolutely hated it.
Clearly, the image of the subject of physics will change 180 degrees.
- You can preview some of the book's contents.
Preview
index
Entering_Physics has a story!
homeroom ① There is absolutely no need to memorize physics formulas!
homeroom ② Let's learn through physical 'stories'!
Homeroom ③ Just this! Math needed for physics
Chapter 1: Epidemiology
Mechanics is 90% about the equations of motion.
Position, velocity, and accelerationThe purpose of mechanics is to know 'when' and 'where' an object is.
Interpreting the meaning of the 'three equations' of uniformly accelerated motion from the 'vt graph'
Relative motion: Finding the 'velocity' and 'position' between 'moving objects'
Equation of motion: Equation of motion that represents the causal relationship between 'force' and 'acceleration'
The law of action and reaction requires two or more objects to produce a force.
Types of Forces: Contact force is an electromagnetic force caused by atoms and molecules.
Motion of an object on an inclined planeMotion on an inclined plane 'resolves' force.
Equilibrium of forcesEquilibrium of forces is the equation of motion with '0 acceleration'
Friction Friction is understood in three ways.
Hooke's law, which calculates the magnitude of elastic force
Inertial force: an apparent force other than gravity and contact force
Work and Energy / Impulse and Momentum ① Two pieces of information that can be obtained from the equations of motion
Work and Energy ① Work is the sum of force and distance.
Work and Energy ②What is the relationship between work and energy?
Impulse and momentum ①Impulse is the 'sum of force over time'
Impulse and momentum ②What is the relationship between impulse and momentum?
Work and Energy / Impulse and Momentum ②When is it good to use energy and momentum?
Potential energy: the work of gravity is considered as energy.
Law of conservation of mechanical energy 'Mechanical energy' is the sum of kinetic energy and potential energy.
Law of conservation of momentum: The total momentum before and after the collision is the same.
The coefficient of restitution is calculated by calculating the difference in relative velocity before and after a collision.
Uniform circular motion: The relationship between the speed and angular velocity of a circular motion moving at a constant speed.
Equations of Centripetal MotionEquations of motion for circular motion with limited acceleration
Centrifugal force'Centrifugal force' and 'centrifugal force' are different forces
Simple vibration ① A form of acceleration that must be simple vibration
Simple vibration ② A representative example of simple vibration is a horizontal spring pendulum.
Law of universal gravitation ① There is always an attractive force between objects with mass.
The Law of Universal Gravitation ② How to Calculate the Potential Energy of Universal Gravitation
Cosmic SpeedWhat is the speed at which a ball can circle the Earth?
Kepler's LawsThe three laws governing the motion of celestial bodies.
Torque ① The action of trying to rotate an object, 'torque'
Torque ② Two factors that determine torque
Torque ③ The lines of action of the three forces must intersect at one point.
Center of gravity'Mathematical center of gravity' and 'physical center of gravity' are the same
Chapter 2 Thermodynamics
Thermodynamics, a 'mechanical' approach to heat phenomena
What is thermodynamics? A fusion of Newtonian mechanics and probability and statistics.
Thermal and thermodynamic temperature 'absolute temperature'
Specific heat and heat capacityThe amount of heat required to raise the temperature of an object by 1[K]
Understanding thermal phenomena through the movement of molecules in ideal gases
Equation of state: The equation of state created using Boyle's law and Charles' law.
Find the sum of the kinetic energy of the ideal gas.
The First Law of Thermodynamics, which describes the absorption and release of energy.
Changes in Gas ① Let's follow the 'changes in gas' using a P-V graph.
Changes in Gas ② Four representative changes in gas
Kinetic theory of gases: The pressure of a gas is viewed as the 'motion of particles'.
Chapter 3 Waves
Wave phenomena are viewed as the 'movement of microscopic particles'.
What is a wave? A wave phenomenon caused by the vibration of molecules.
Types of Waves 'Wave phenomena' are broadly divided into two types.
Classification of waves by 'direction of vibration': transverse and longitudinal waves
Characteristics of WavesSix physical quantities that characterize waves
The basic equation of waves, which expresses wave phenomena in mathematical formulas.
What happens when a reflected wave and a standing wave collide?
A 'stationary wave' formed by waves that are similar to stationary waves
Natural vibrations: vibrations that various substances have
Vibration of waves transmitted to the vibrating string
Vibration of air molecules within a vibrating column of air 'Vibration of air column'
Doppler EffectWhy does the sound of an ambulance siren change as it passes by?
Chapter 4 Electromagnetism
A new perspective on "fields" emerges in classical physics.
What is electromagnetism? Electromagnetism is defined as the movement of particles.
Coulomb's law, which expresses the force acting between electric charges in a formula
Electric field (electric field) 'Electric field' is a space that expresses the 'movement of electric charges'.
Potential and Voltage 'Potential' is electrical potential energy
Maxwell's equations, which describe the four laws of electromagnetic fields
Gauss's law, which quantitatively evaluates electric field lines
How do electrons move within metals?
CapacitorsThe relationship between capacitors and electric capacity
The grand parade of electric charges, 'current'
Ohm's law, which calculates voltage from resistance and current.
'Power consumption', the heat generated by the flow of electric current
Circuit equations for calculating current and voltage in a circuit
The force that a magnetic charge receives from a magnetic field, called the Lorentz force.
The 'right-hand screw rule' that describes the shape of a magnetic field
When an electromagnetic induced magnetic field changes, an 'electric field' is created.
Chapter 5 Atomic Physics
The transition from 'classical mechanics' to 'modern physics'
Atomic Physics = Quantum Electromagnetic Theory: The study of the microscopic world at the atomic level.
Light ① The 'photoelectric effect', where electromagnetic waves bounce off metal
Light ② The 'photon hypothesis' that considers light as a particle
Is light a wave or a particle?
Matter waves (de Broglie waves) that exhibit the wave nature of electrons
Atom ① History of the atomic model
Atom ② Bohr's model of the hydrogen atom
Equivalence of mass and energy In fact, mass and energy are equal.
Structure of the nucleus: The nucleus is composed of protons and neutrons.
Binding energy: When a nucleon is removed, its mass changes.
Nuclear decay: Radiation emitted by the decay of the nucleus.
The decay of a nucleus that occurs probabilistically
homeroom ① There is absolutely no need to memorize physics formulas!
homeroom ② Let's learn through physical 'stories'!
Homeroom ③ Just this! Math needed for physics
Chapter 1: Epidemiology
Mechanics is 90% about the equations of motion.
Position, velocity, and accelerationThe purpose of mechanics is to know 'when' and 'where' an object is.
Interpreting the meaning of the 'three equations' of uniformly accelerated motion from the 'vt graph'
Relative motion: Finding the 'velocity' and 'position' between 'moving objects'
Equation of motion: Equation of motion that represents the causal relationship between 'force' and 'acceleration'
The law of action and reaction requires two or more objects to produce a force.
Types of Forces: Contact force is an electromagnetic force caused by atoms and molecules.
Motion of an object on an inclined planeMotion on an inclined plane 'resolves' force.
Equilibrium of forcesEquilibrium of forces is the equation of motion with '0 acceleration'
Friction Friction is understood in three ways.
Hooke's law, which calculates the magnitude of elastic force
Inertial force: an apparent force other than gravity and contact force
Work and Energy / Impulse and Momentum ① Two pieces of information that can be obtained from the equations of motion
Work and Energy ① Work is the sum of force and distance.
Work and Energy ②What is the relationship between work and energy?
Impulse and momentum ①Impulse is the 'sum of force over time'
Impulse and momentum ②What is the relationship between impulse and momentum?
Work and Energy / Impulse and Momentum ②When is it good to use energy and momentum?
Potential energy: the work of gravity is considered as energy.
Law of conservation of mechanical energy 'Mechanical energy' is the sum of kinetic energy and potential energy.
Law of conservation of momentum: The total momentum before and after the collision is the same.
The coefficient of restitution is calculated by calculating the difference in relative velocity before and after a collision.
Uniform circular motion: The relationship between the speed and angular velocity of a circular motion moving at a constant speed.
Equations of Centripetal MotionEquations of motion for circular motion with limited acceleration
Centrifugal force'Centrifugal force' and 'centrifugal force' are different forces
Simple vibration ① A form of acceleration that must be simple vibration
Simple vibration ② A representative example of simple vibration is a horizontal spring pendulum.
Law of universal gravitation ① There is always an attractive force between objects with mass.
The Law of Universal Gravitation ② How to Calculate the Potential Energy of Universal Gravitation
Cosmic SpeedWhat is the speed at which a ball can circle the Earth?
Kepler's LawsThe three laws governing the motion of celestial bodies.
Torque ① The action of trying to rotate an object, 'torque'
Torque ② Two factors that determine torque
Torque ③ The lines of action of the three forces must intersect at one point.
Center of gravity'Mathematical center of gravity' and 'physical center of gravity' are the same
Chapter 2 Thermodynamics
Thermodynamics, a 'mechanical' approach to heat phenomena
What is thermodynamics? A fusion of Newtonian mechanics and probability and statistics.
Thermal and thermodynamic temperature 'absolute temperature'
Specific heat and heat capacityThe amount of heat required to raise the temperature of an object by 1[K]
Understanding thermal phenomena through the movement of molecules in ideal gases
Equation of state: The equation of state created using Boyle's law and Charles' law.
Find the sum of the kinetic energy of the ideal gas.
The First Law of Thermodynamics, which describes the absorption and release of energy.
Changes in Gas ① Let's follow the 'changes in gas' using a P-V graph.
Changes in Gas ② Four representative changes in gas
Kinetic theory of gases: The pressure of a gas is viewed as the 'motion of particles'.
Chapter 3 Waves
Wave phenomena are viewed as the 'movement of microscopic particles'.
What is a wave? A wave phenomenon caused by the vibration of molecules.
Types of Waves 'Wave phenomena' are broadly divided into two types.
Classification of waves by 'direction of vibration': transverse and longitudinal waves
Characteristics of WavesSix physical quantities that characterize waves
The basic equation of waves, which expresses wave phenomena in mathematical formulas.
What happens when a reflected wave and a standing wave collide?
A 'stationary wave' formed by waves that are similar to stationary waves
Natural vibrations: vibrations that various substances have
Vibration of waves transmitted to the vibrating string
Vibration of air molecules within a vibrating column of air 'Vibration of air column'
Doppler EffectWhy does the sound of an ambulance siren change as it passes by?
Chapter 4 Electromagnetism
A new perspective on "fields" emerges in classical physics.
What is electromagnetism? Electromagnetism is defined as the movement of particles.
Coulomb's law, which expresses the force acting between electric charges in a formula
Electric field (electric field) 'Electric field' is a space that expresses the 'movement of electric charges'.
Potential and Voltage 'Potential' is electrical potential energy
Maxwell's equations, which describe the four laws of electromagnetic fields
Gauss's law, which quantitatively evaluates electric field lines
How do electrons move within metals?
CapacitorsThe relationship between capacitors and electric capacity
The grand parade of electric charges, 'current'
Ohm's law, which calculates voltage from resistance and current.
'Power consumption', the heat generated by the flow of electric current
Circuit equations for calculating current and voltage in a circuit
The force that a magnetic charge receives from a magnetic field, called the Lorentz force.
The 'right-hand screw rule' that describes the shape of a magnetic field
When an electromagnetic induced magnetic field changes, an 'electric field' is created.
Chapter 5 Atomic Physics
The transition from 'classical mechanics' to 'modern physics'
Atomic Physics = Quantum Electromagnetic Theory: The study of the microscopic world at the atomic level.
Light ① The 'photoelectric effect', where electromagnetic waves bounce off metal
Light ② The 'photon hypothesis' that considers light as a particle
Is light a wave or a particle?
Matter waves (de Broglie waves) that exhibit the wave nature of electrons
Atom ① History of the atomic model
Atom ② Bohr's model of the hydrogen atom
Equivalence of mass and energy In fact, mass and energy are equal.
Structure of the nucleus: The nucleus is composed of protons and neutrons.
Binding energy: When a nucleon is removed, its mass changes.
Nuclear decay: Radiation emitted by the decay of the nucleus.
The decay of a nucleus that occurs probabilistically
Detailed image
Into the book
Classical physics starting from mechanics
Classical mechanics, which is the center of classical physics, begins with the 'equation of motion' ma=F discovered by Newton.
Newton said, 'The motion of a body is perfectly described by the equations of motion.'
And indeed, scientists have proven that various motion phenomena can be explained by 'equations of motion'.
So it is said that classical physics is a story that begins with Newton's discovery of the equations of motion.
---From "Chapter 1, Dynamics"
Is thermal phenomenon 'particle movement'?
The field of thermodynamics, which we will discuss in this chapter, is a discipline that explains thermal phenomena in the language of mechanics, influenced by Newtonian mechanics.
In this chapter, we begin by understanding the words 'heat' and 'temperature', which we frequently use in our daily lives, from a 'mechanical' perspective.
If we think about it mechanically, the true nature of 'heat' is energy.
'Temperature' is expressed in units called [K] and as 'absolute temperature T'.
The amount of heat required to raise the temperature of 1[g] of a substance by 1[K] is called 'specific heat', and the amount of heat required to raise the temperature of an object by 1[K] is called 'heat capacity'.
After understanding heat and temperature dynamically, let's look at thermal phenomena.
Because the bonds between molecules in solids and liquids are very complex, the molecules move completely freely, and the thermal phenomena of gases are explained using the concept of an "ideal gas," in which the size of gas molecules can be ignored.
---From Chapter 2 Thermodynamics
A wave is a vibration of a 'particle (medium)'
When people hear the word 'wave', they often think of ripples on the surface of the water.
So, some of you may think that this section on waves is a completely different physical phenomenon from the mechanics and thermodynamics we have covered so far.
However, waves can be fundamentally understood within the framework of mechanics or thermodynamics.
First of all, the 'wave' we are dealing with in waves does not only mean water waves.
The vibration of a string, a string, or a sound is actually a wave phenomenon.
From a microscopic perspective, this phenomenon is all about the vibration of 'particles (medium)' being transmitted with a time difference.
That is, the phenomenon called wave can be thought of mechanically as the movement of individual microscopic particles (mechanical particles).
---From "Chapter 3 Waves"
The 'action of force' that could not be explained in mechanics until now
Earlier, I said that the field of 'electromagnetism' was established because it was discovered that the principle of occurrence of 'electromagnetic waves (light)' is different from that of wave phenomena such as ripples on the surface of water, strings, lines, and sound.
However, just like mechanics, thermodynamics, and waves, electromagnetism can be approached and understood mechanically by viewing it as the 'particle motion of an object'.
In electromagnetism, the equivalent of a 'particle' is a 'charge'.
In mechanics, an 'object' with 'mass m[kg]' is considered as an 'electric charge' with 'quantity q[C]' in electromagnetism.
So, how does electromagnetism differ from the previous theories of mechanics, thermodynamics, and waves? It's the addition of the new concept of "field."
---From "Chapter 4 Electromagnetism"
The beginning of a new physics
Classical mechanics came to an end around the end of the 19th century.
Phenomena that could not be explained by the Newtonian approach began to be observed, especially in the microscopic world.
And the transition from classical physics to modern physics began to take place.
Chapter 5, the final chapter of this book, covers atomic physics, a field studied during the transition from classical to modern physics.
Atomic physics is historically called 'quantum electrophysics'.
The greatest interest in atomic physics is light.
Let's find out how scientists of the time approached studying and elucidating the phenomena of light that classical physics could not explain until now.
Classical mechanics, which is the center of classical physics, begins with the 'equation of motion' ma=F discovered by Newton.
Newton said, 'The motion of a body is perfectly described by the equations of motion.'
And indeed, scientists have proven that various motion phenomena can be explained by 'equations of motion'.
So it is said that classical physics is a story that begins with Newton's discovery of the equations of motion.
---From "Chapter 1, Dynamics"
Is thermal phenomenon 'particle movement'?
The field of thermodynamics, which we will discuss in this chapter, is a discipline that explains thermal phenomena in the language of mechanics, influenced by Newtonian mechanics.
In this chapter, we begin by understanding the words 'heat' and 'temperature', which we frequently use in our daily lives, from a 'mechanical' perspective.
If we think about it mechanically, the true nature of 'heat' is energy.
'Temperature' is expressed in units called [K] and as 'absolute temperature T'.
The amount of heat required to raise the temperature of 1[g] of a substance by 1[K] is called 'specific heat', and the amount of heat required to raise the temperature of an object by 1[K] is called 'heat capacity'.
After understanding heat and temperature dynamically, let's look at thermal phenomena.
Because the bonds between molecules in solids and liquids are very complex, the molecules move completely freely, and the thermal phenomena of gases are explained using the concept of an "ideal gas," in which the size of gas molecules can be ignored.
---From Chapter 2 Thermodynamics
A wave is a vibration of a 'particle (medium)'
When people hear the word 'wave', they often think of ripples on the surface of the water.
So, some of you may think that this section on waves is a completely different physical phenomenon from the mechanics and thermodynamics we have covered so far.
However, waves can be fundamentally understood within the framework of mechanics or thermodynamics.
First of all, the 'wave' we are dealing with in waves does not only mean water waves.
The vibration of a string, a string, or a sound is actually a wave phenomenon.
From a microscopic perspective, this phenomenon is all about the vibration of 'particles (medium)' being transmitted with a time difference.
That is, the phenomenon called wave can be thought of mechanically as the movement of individual microscopic particles (mechanical particles).
---From "Chapter 3 Waves"
The 'action of force' that could not be explained in mechanics until now
Earlier, I said that the field of 'electromagnetism' was established because it was discovered that the principle of occurrence of 'electromagnetic waves (light)' is different from that of wave phenomena such as ripples on the surface of water, strings, lines, and sound.
However, just like mechanics, thermodynamics, and waves, electromagnetism can be approached and understood mechanically by viewing it as the 'particle motion of an object'.
In electromagnetism, the equivalent of a 'particle' is a 'charge'.
In mechanics, an 'object' with 'mass m[kg]' is considered as an 'electric charge' with 'quantity q[C]' in electromagnetism.
So, how does electromagnetism differ from the previous theories of mechanics, thermodynamics, and waves? It's the addition of the new concept of "field."
---From "Chapter 4 Electromagnetism"
The beginning of a new physics
Classical mechanics came to an end around the end of the 19th century.
Phenomena that could not be explained by the Newtonian approach began to be observed, especially in the microscopic world.
And the transition from classical physics to modern physics began to take place.
Chapter 5, the final chapter of this book, covers atomic physics, a field studied during the transition from classical to modern physics.
Atomic physics is historically called 'quantum electrophysics'.
The greatest interest in atomic physics is light.
Let's find out how scientists of the time approached studying and elucidating the phenomena of light that classical physics could not explain until now.
---From Chapter 5 Electromagnetism
Publisher's Review
High school physics
'Things to know before learning modern physics
It's the 'history of physics'!
There are about 100 formulas in high school physics.
Memorizing a list of 100 numbers or symbols whose meaning you don't even know is no different from memorizing 100 phone numbers.
This kind of study is nothing but asceticism.
So the author says that you shouldn't just memorize formulas.
In fact, physics is a subject that requires little memorization! The formulas in physics are merely "leaves" sprouting from the "physics tree."
In studying physics, the most important thing is to understand the 'trunk' of the 'physics tree'.
‘Stem’ refers to the background of the formula, or ‘story’.
Once you understand the story, you will be able to derive it yourself without having to force yourself to memorize the formula.
So what exactly is the story of physics? The subject covered in high school physics is "classical physics," a branch of physics.
Classical physics begins with the equations of motion discovered by Newton in the 17th century (Newtonian mechanics).
At the time, scientists, based on Newton's mechanical concepts, solved and elucidated physical phenomena such as the motion of objects, heat, waves, and electromagnetism one by one through trial and error, but around the end of the 19th century, they were faced with various physical phenomena that could not be explained.
Thus, classical physics came to an end and the era of quantum theory, which was covered in university physics, began.
This is the main story behind high school physics content.
Step-up physics that builds the basics step by step
Let's build up the concepts one by one!
Physics, to put it simply, is “the study of all natural phenomena as movements based on certain rules.”
As a result of this act called 'technology', a formula called a formula was created.
In other words, when learning physics, it is not the formulas themselves that are important, but the story behind the formulas.
Behind the 'formulas' that appear in physics lies the great 'human drama' of famous geniuses who went through trial and error in the process of studying the principles of the natural world.
Above all, if you understand the story, you can derive the formula yourself without having to go through the ordeal of memorizing formulas without even knowing their meaning.
I hope that through this book, you will become familiar with physics and think, even just a little, that 'physics is fun, physics is more interesting than you think, physics is fascinating.'
'Things to know before learning modern physics
It's the 'history of physics'!
There are about 100 formulas in high school physics.
Memorizing a list of 100 numbers or symbols whose meaning you don't even know is no different from memorizing 100 phone numbers.
This kind of study is nothing but asceticism.
So the author says that you shouldn't just memorize formulas.
In fact, physics is a subject that requires little memorization! The formulas in physics are merely "leaves" sprouting from the "physics tree."
In studying physics, the most important thing is to understand the 'trunk' of the 'physics tree'.
‘Stem’ refers to the background of the formula, or ‘story’.
Once you understand the story, you will be able to derive it yourself without having to force yourself to memorize the formula.
So what exactly is the story of physics? The subject covered in high school physics is "classical physics," a branch of physics.
Classical physics begins with the equations of motion discovered by Newton in the 17th century (Newtonian mechanics).
At the time, scientists, based on Newton's mechanical concepts, solved and elucidated physical phenomena such as the motion of objects, heat, waves, and electromagnetism one by one through trial and error, but around the end of the 19th century, they were faced with various physical phenomena that could not be explained.
Thus, classical physics came to an end and the era of quantum theory, which was covered in university physics, began.
This is the main story behind high school physics content.
Step-up physics that builds the basics step by step
Let's build up the concepts one by one!
Physics, to put it simply, is “the study of all natural phenomena as movements based on certain rules.”
As a result of this act called 'technology', a formula called a formula was created.
In other words, when learning physics, it is not the formulas themselves that are important, but the story behind the formulas.
Behind the 'formulas' that appear in physics lies the great 'human drama' of famous geniuses who went through trial and error in the process of studying the principles of the natural world.
Above all, if you understand the story, you can derive the formula yourself without having to go through the ordeal of memorizing formulas without even knowing their meaning.
I hope that through this book, you will become familiar with physics and think, even just a little, that 'physics is fun, physics is more interesting than you think, physics is fascinating.'
GOODS SPECIFICS
- Date of issue: April 10, 2023
- Page count, weight, size: 260 pages | 426g | 148*210*15mm
- ISBN13: 9791168621213
- ISBN10: 1168621216
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