crash course work energy and power

Collisions: Crash Course Physics #10

Rotational Motion: Crash Course Physics #11

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Statics: Crash Course Physics #13

Fluids at Rest: Crash Course Physics #14

Fluids in Motion: Crash Course Physics #15

Simple Harmonic Motion: Crash Course Physics #16

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Sound: Crash Course Physics #18

The Physics of Music: Crash Course Physics #19

Temperature: Crash Course Physics #20

Kinetic Theory: Crash Course Physics #21

Work, energy, and power: crash course physics #9.

When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it. Also, Energy and Power!

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crashcourse Work, Energy, and Power: Crash Course Physics #9

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Unit 10: Work, energy and power

About this unit.

"Energy" is a word that's used a lot. Here, you'll learn about how it's one of the most useful concepts in physics. Along the way, we'll talk about work, kinetic energy, potential energy, and conservation of energy.

Introduction to work

• Work example problems (Opens a modal)
• Work as area under curve (Opens a modal)
• Introduction to work review (Opens a modal)
• The dot product (Opens a modal)
• Calculating work done by a force 4 questions Practice
• Calculating work from force vs. position graphs 4 questions Practice

Kinetic energy

• What is kinetic energy? (Opens a modal)
• Kinetic energy review (Opens a modal)
• Using the kinetic energy equation 4 questions Practice

Work-energy theorem

• Work and the work-energy principle (Opens a modal)
• Work-energy theorem review (Opens a modal)
• Calculating change in kinetic energy from a force 4 questions Practice
• Velocity and mass from force vs. position graphs 4 questions Practice

Gravitational potential energy and conservative forces

• Conservative forces (Opens a modal)
• Gravitational potential energy and conservative forces review (Opens a modal)
• Finding change in gravitational potential energy 4 questions Practice

Spring potential energy and Hooke's law

• Intro to springs and Hooke's law (Opens a modal)
• Potential energy stored in a spring (Opens a modal)
• Spring potential energy example (mistake in math) (Opens a modal)
• Spring potential energy and Hooke's law review (Opens a modal)
• What is Hooke's Law? (Opens a modal)
• What is elastic potential energy? (Opens a modal)
• Calculating spring force 4 questions Practice
• Calculating elastic potential energy 4 questions Practice

Conservation of energy

• Law of conservation of energy (Opens a modal)
• LOL diagrams (Opens a modal)
• What is conservation of energy? (Opens a modal)
• Conservation of energy (Opens a modal)
• Work as the transfer of energy (Opens a modal)
• Vertical springs and energy conservation (Opens a modal)
• Conservation of energy review (Opens a modal)
• Conservation of energy: Predict changes in energy 4 questions Practice
• Conservation of energy: Numerical calculations 4 questions Practice

Work and energy problems involving friction

• Thermal energy from friction (Opens a modal)
• What is thermal energy? (Opens a modal)
• Work/energy problem with friction (Opens a modal)
• Power (Opens a modal)
• What is power? (Opens a modal)
• Power review (Opens a modal)
• Relating power and energy 4 questions Practice

Elastic and inelastic collisions

• Elastic and inelastic collisions (Opens a modal)
• Solving elastic collision problems the hard way (Opens a modal)
• Deriving the shortcut to solve elastic collision problems (Opens a modal)
• How to use the shortcut for solving elastic collisions (Opens a modal)
• What are elastic and inelastic collisions? (Opens a modal)
• Elastic collisions review (Opens a modal)
• Inelastic collision review (Opens a modal)
• Properties of inelastic and elastic collisions 4 questions Practice

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Work, Energy, and Power

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Work, Energy, and Power: Crash Course Physics #9

When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it. Also, Energy and Power!

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Crash Course Physics

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Work, Energy, and Power: Crash Course Physics #9

Show title: crash course physics, video title: work, energy, and power: crash course physics #9.

Video description: When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it. Also, Energy and Power!

Astrophysics and Cosmology: Crash Course Physics #46

Nuclear Physics: Crash Course Physics #45

Quantum Mechanics - Part 2: Crash Course Physics #44

Quantum Mechanics - Part 1: Crash Course Physics #43

Special Relativity: Crash Course Physics #42

Optical Instruments: Crash Course Physics #41

Spectra Interference: Crash Course Physics #40

Light Is Waves: Crash Course Physics #39

Geometric Optics: Crash Course Physics #38

Maxwell's Equations: Crash Course Physics #37

AC Circuits: Crash Course Physics #36

How Power Gets to Your Home: Crash Course Physics #35

Induction - An Introduction: Crash Course Physics #34

Ampère's Law: Crash Course Physics #33

Magnetism: Crash Course Physics #32

Capacitors and Kirchhoff: Crash Course Physics #31

Circuit Analysis: Crash Course Physics #30

Resistors & Batteries: Crash Course Physics #29

Electric Current: Crash Course Physics #28

Voltage & Capacitors: Crash Course Physics #27

Check out the new streaming service from Cascade PBS, which pairs your PBS favorites with an ever-growing selection of TV series and films from around the world. Enjoy dedicated mobile and TV apps.

Astrophysics and Cosmology: Crash Course Physics #46

Nuclear Physics: Crash Course Physics #45

Quantum Mechanics – Part 2: Crash Course Physics #44

Quantum Mechanics – Part 1: Crash Course Physics #43

Special Relativity: Crash Course Physics #42

Optical Instruments: Crash Course Physics #41

Spectra Interference: Crash Course Physics #40

Light Is Waves: Crash Course Physics #39

Geometric Optics: Crash Course Physics #38

Maxwell’s Equations: Crash Course Physics #37

AC Circuits: Crash Course Physics #36

How Power Gets to Your Home: Crash Course Physics #35

Induction – An Introduction: Crash Course Physics #34

Ampère’s Law: Crash Course Physics #33

Magnetism: Crash Course Physics #32

Capacitors and Kirchhoff: Crash Course Physics #31

Circuit Analysis: Crash Course Physics #30

DC Resistors & Batteries: Crash Course Physics #29

Electric Current: Crash Course Physics #28

Voltage, Electric Energy, and Capacitors: Crash Course Physics #27

Electric Fields: Crash Course Physics #26

Electric Charge: Crash Course Physics #25

Engines: Crash Course Physics #24

Thermodynamics: Crash Course Physics #23

The Physics of Heat: Crash Course Physics #22

Kinetic Theory and Phase Changes: Crash Course Physics #21

Temperature: Crash Course Physics #20

The Physics of Music: Crash Course Physics #19

Sound: Crash Course Physics #18

Traveling Waves: Crash Course Physics #17

Simple Harmonic Motion: Crash Course Physics #16

Fluids in Motion: Crash Course Physics #15

Fluids at Rest: Crash Course Physics #14

Statics: Crash Course Physics #13

Torque: Crash Course Physics #12

Rotational Motion: Crash Course Physics #11

Collisions: Crash Course Physics #10

Work, Energy, and Power: Crash Course Physics #9

Newtonian Gravity: Crash Course Physics #8

Uniform Circular Motion: Crash Course Physics #7

Friction: Crash Course Physics #6

Newton’s Laws: Crash Course Physics #5

Vectors and 2D Motion: Crash Course Physics #4

Integrals: Crash Course Physics #3

Derivatives: Crash Course Physics #2

Motion in a Straight Line: Crash Course Physics #1

Work, Energy, and Power: Crash Course Physics #9

TLDR This video explores the specific meaning of 'work' and 'power' in physics, diverging from their everyday connotations. It delves into the concept of work as the application of force over a distance, introducing the equation for calculating work, including scenarios involving constant and varying forces. The discussion extends to energy, highlighting the relationship between work and energy changes within a system, with a focus on kinetic and potential energy. The video also explains conservative and non-conservative systems, and concludes with an introduction to power, defined as work over time, measured in Watts. The presentation aims to clarify these fundamental physics concepts through practical examples and equations.

• 📚 Work in physics is defined as applying a force over a distance to a system, differing from everyday use of the term.
• 📈 Work is calculated as the force used to move an object times the distance moved, often measured in Joules.
• 🔨 When the direction of force and movement differ, work involves calculating the component of force parallel to the direction of movement, using the cosine of the angle between force and movement.
• 🚀 Kinetic energy, the energy of motion, changes when work is done on an object, indicating a transfer of energy.
• 🏁 Potential energy represents energy stored within a system, ready to do work, with gravitational and spring potential energy as key examples.
• 💧 The concept of energy conservation underlines that energy can neither be created nor destroyed, only transformed or transferred.
• ⚡️ Power, defined as work over time, measures how quickly energy is converted from one form to another, expressed in Watts (Joules per second).
• 💥 Non-conservative systems can lose energy through mechanisms like friction, which transforms mechanical energy into heat.
• 🗺 Conservative systems maintain the total energy constant as it shifts between kinetic and potential forms, exemplified by a pendulum's motion.
• 📖 The relationship between work, kinetic energy, potential energy, and power is fundamental to understanding various physical phenomena and principles.

What is the definition of work in physics?

- In physics, work is defined as force applied over a distance. It happens when a force is exerted on a system, causing its energy to change.

How do you calculate work when the force is constant?

- When the force is constant, work is calculated as force multiplied by distance. The equation is W = Fd.

How do you calculate work when the force is not constant?

- When the force varies, you have to integrate the force over the distance. The equation becomes W = ∫Fds.

What are the two main types of energy discussed?

- The two main types of energy discussed are kinetic energy and potential energy.

How is kinetic energy calculated?

- Kinetic energy is calculated as 1/2mv^2, where m is mass and v is velocity.

What is gravitational potential energy?

- Gravitational potential energy is the potential energy an object has due to its height above the ground in a gravitational field. It's calculated as mgh, where m is mass, g is gravitational acceleration, and h is height.

What is spring potential energy?

- Spring potential energy is the potential energy stored in a compressed or stretched spring. It's calculated as 1/2kx^2, where k is the spring constant and x is the displacement.

What is the difference between conservative and non-conservative systems?

- In conservative systems, energy is conserved. In non-conservative systems, energy can be lost to heat, sound, etc.

How is power defined in physics?

- Power is defined as work over time. It can also be calculated as force x velocity.

What are the units of power?

- The units of power are Watts, which is equivalent to Joules/second.

🔬 Understanding Work and Energy in Physics

This segment introduces the concept of 'work' as understood in physics, contrasting it with everyday interpretations. Work in physics is described as the application of force over a distance to a system, such as dragging a box across the floor. It's explained that the amount of work done is equal to the force applied multiplied by the distance moved, with work typically measured in Joules. The video script touches on scenarios where the direction of applied force and movement are not aligned, necessitating the use of vector components to calculate work accurately. Furthermore, the narrative delves into situations of varying force, illustrating how integration can be used to calculate work in these cases. The script links work closely with energy, stating that work is essentially a change in a system's energy, either kinetic or potential, and introduces these two forms of energy.

🌌 Exploring Potential Energy and Power

This part elaborates on different forms of potential energy, starting with gravitational potential energy, which is determined by an object's mass, the force of gravity, and its height above the ground. It then introduces spring potential energy, explained through Hooke's law, which relates the force exerted by a spring to its compression or extension. The concept of conservative and non-conservative systems is explained, highlighting how energy is conserved or transformed in these systems. The script transitions to discussing power, defining average power as work done over time and measured in Watts, and shows how to calculate it through examples. It concludes with how power relates to force, distance, and average velocity, setting the stage for discussions on electricity and energy transfer in circuits in future lessons.

💡 kinetic energy

💡 potential energy, 💡 conservative system, 💡 non-conservative system.

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Silicon nanoparticles showed superior performance as lithium-ion battery anodes, with high capacity and long cycle life

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Researchers demonstrated a machine learning technique to predict battery cycle life from early cycling data

The ML model accurately predicted cycle life after training on voltage curves from the first 100 cycles

Predicting battery life early on enables adaptive charging to extend lifespan and reduce waste

Scientists created an all-solid-state lithium-metal battery with high energy density and stable cycling

The solid electrolyte enabled safe lithium metal anodes with 10x more energy than graphite anodes

All-solid-state batteries eliminate flammable liquid electrolytes for intrinsically safe batteries

Researchers optimized lithium-sulfur batteries to achieve high capacity over 500 cycles

Using a microporous carbon host mitigated dissolution of sulfur cathode

Lithium-sulfur batteries offer high theoretical capacity but suffer from short cycle life

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Improving lithium-ion batteries will enable longer range electric vehicles and better energy storage

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Work, Energy, and Power - Basic Introduction

How to Calculate Work in Physics

AP Physics 1: Work, Energy and Power Review

8.01x - Lect 11 - Work, Kinetic & Potential Energy, Gravitation, Conservative Forces

Energy Systems Clarified

AP Physics 1 review of Energy and Work | Physics | Khan Academy

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Work, Energy, and Power: Crash Course Physics #9

When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it. Also, Energy and Power! -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by Squarespace. http://www.squarespace.com/crashcourse -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC.. . Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids

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Work, Energy, and Power: Crash Course Physics #9

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Induction - an introduction: crash course physics #34, maxwell's equations: crash course physics #37, ac circuits: crash course physics #36, how power gets to your home: crash course physics #35, magnetism: crash course physics #32, astrophysics and cosmology: crash course physics #46, sponsored by:.

Season 1 Episodes

Nuclear physics: crash course physics #45, quantum mechanics - part 2: crash course physics #44, quantum mechanics - part 1: crash course physics #43, special relativity: crash course physics #42, optical instruments: crash course physics #41, spectra interference: crash course physics #40, light is waves: crash course physics #39, geometric optics: crash course physics #38, ampère's law: crash course physics #33, capacitors and kirchhoff: crash course physics #31, circuit analysis: crash course physics #30, resistors & batteries: crash course physics #29, electric current: crash course physics #28, voltage & capacitors: crash course physics #27, electric fields: crash course physics #26, electric charge: crash course physics #25, engines: crash course physics #24, thermodynamics: crash course physics #23, the physics of heat: crash course physics #22, kinetic theory: crash course physics #21, temperature: crash course physics #20, the physics of music: crash course physics #19, sound: crash course physics #18, traveling waves: crash course physics #17, simple harmonic motion: crash course physics #16, fluids in motion: crash course physics #15, fluids at rest: crash course physics #14, statics: crash course physics #13, torque: crash course physics #12, rotational motion: crash course physics #11, collisions: crash course physics #10, newtonian gravity: crash course physics #8, uniform circular motion: crash course physics #7, friction: crash course physics #6, newton's laws: crash course physics #5, vectors and 2d motion: crash course physics #4, integrals: crash course physics #3, derivatives: crash course physics #2, motion in a straight line: crash course physics #1.

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Crash Course Physics

Work, Energy, and Power: Crash Course Physics #9

Episode 9 | 9m 54s  |  Video has closed captioning.

When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it. Also, Energy and Power!

Aired: 10/05/16

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When I say "work," what's the first thing that comes to mind?

Maybe a cubicle?

Or a briefcase?

Or that history exam that's coming up soon?

But if you're a physicist, work has a very specific meaning -- one that has very little to do with spreadsheets or the fall of the Roman Empire.

Today, we're going to explore that definition - - and how it connects to one of the most important principles in physics: conservation of energy.

We'll also learn what physicists mean when they talk about another concept that comes up a lot in daily life: power.

So let's get to...work.

[Theme Music] So far in this course, we've spent most of our time talking about forces, and the way they make things move.

And you need to understand forces before you can understand work.

Because work is what happens when you apply a force over a certain distance, to a system -- a system just being whatever section of the universe you h appen to be talking about at the time.

For example, if you're using a rope to drag a box across the floor, we might say that the box is your system, and the force you're using to pull on it is an external force.

So, let's say you're pulling on this box-system by dragging it straight behind you, so the rope is parallel to the ground.

If you use the rope to pull the box for one meter, we'd say that you're doing work on the box.

And the amount of work you're doing is equal to the force you're using to pull the box, times the distance you moved it.

For example, if you pulled the rope -- and therefore the box -- with a force of 50 Newtons, while you moved it 5 meters, then we'd say that you did 250 Newton-meters of work on the box.

More commonly, however, work is expressed in units known as Joules.

Now, sometimes, the force you apply to an object won't be in exactly the same direction as the direction in which the object is moving.

Like, if you tried to drag the box with your hand higher than the box, so that the rope was at an angle to the floor.

In that case, the box would move parallel to the floor, but the force would be at an angle to it.

And in such an instance, you'd have to use one the tricks we learned back when we first talked about vectors.

Specifically, you must separate the force you're using on the rope into its component parts: one that's parallel to the floor, and one that's perpendicular to it.

To find the part of the force that's parallel to the floor -- that is, the one that's actually pulling the box forward -- you just have to multiply the magnitude of the force by the cosine of the rope's angle to the ground.

You'll remember that we typically designate an angle in a system as theta.

So, to calculate the work you did on the box, you just multiply the horizontal component - - or F times the cosine of theta -- by the distance you moved the box.

That's one way physicists often write the equation for work -- they'll set it equal to force, times distance, times the cosine of theta.

And that equation will fit any scenario that involves a constant force being applied over a certain distance.

But what if the force isn't constant?

What if, say, you started out pulling hard on the box, but then you started to get tired, so the amount of force you exerted on the box got smaller and smaller the farther you dragged it.

To calculate the work you did in that case, you'd have to count up the amount of force you applied over each tiny little bit of distance.

And if you've watched our episodes on calculus, then you know that there's a faster way to add together infinitely tiny increments: integration.

So, to find the work done by a varying force, you just have to integrate that force relative to the distance the object moved.

Which would look like this.

But force-times-distance is only one of the ways that physicists measure work.

Because, you know how we just said that Joules are the units of work?

Well, Joules are often used as the units for something else: energy.

And work uses the same units as energy, because work is just a change in energy.

It's what happens when an external force is applied to a system and changes the energy of that system.

In fact, that's one of the ways to define energy -- it's the ability to do work.

There are all different kinds of energy, but in this episode, we'll mainly be talking about two of them: kinetic energy and potential energy.

Kinetic energy is the energy of motion.

When the box was resting on the ground, we'd say that it had no kinetic energy.

But once you applied a force and it started moving, it did have kinetic energy.

And the energy of the box changed, which means that you did work on it.

More specifically, the kinetic energy of an object is equal to half of its mass, times its velocity squared.

If this looks familiar, that's because it comes from applying both Newton's second law and the kinematic equations to the idea that work is equal to force times distance.

So, if the box had a mass of 20 kilograms, and at some point while you were dragging it, it reached a velocity of 4 meters per second, we'd say that its kinetic energy at that moment was 160 Joules.

Then there's potential energy, which actually isn't what it sounds like.

Potential energy isn't potentially energy - - it's potentially work.

In other words, potential energy is energy that could be used to do work.

One common type of potential energy is gravitational potential energy - - basically, the potential energy that comes from the fact that gravity exists.

If I hold this book a meter above the ground, we'd say that it has gravitational potential energy.

Because if you let it go, then gravity is going to do work on the book.

Gravity exerted a force that moves it to the ground.

Once the book hits the ground, though, we'd say that its gravitational potential energy is zero, because gravity can't do work on it anymore.

Calculating gravitational potential energy is easy enough: it's just the force of gravity on the object - - so, the object's mass times small g -- multiplied by the object's height.

Or mgh for short.

Which means that, just by knowing that this book's mass is about a kilogram, and that it's a meter above the ground, we can calculate its potential energy: which is 9.8 Joules.

Another type of potential energy that shows up a lot is spring potential energy.

Despite its name, this is not a seasonal thing -- and yes, I really made that joke.

Rather, it's the type of potential energy that's specific to springs!

The force of a spring is equal to the distance by which it's either compressed or stretched, times a constant that we write as k. This equation is known as Hooke's law, after British physicist Robert Hooke, who came up with it in 1660.

Now, the constant, k -- also called the spring constant -- is different for each spring, and it's a measure of the spring's stiffness.

And the equation makes total sense, if you think about it: The further you push on the spring, and the stiffer it is, the harder it will resist.

You even can test this out for yourself by taking apart a clicky pen and playing with the spring inside.

By combining Hooke's law, with the idea that work equals force times distance, we can find the potential energy from a spring: it's half times k times the distance squared.

For example: if you have a spring with a spring constant of 200 Newtons per meter, and a block is compressing it by half a meter, then the potential energy of the block would be 25 Joules.

So, when something does work on a system, its energy changes.

But how that energy changes depends on the system.

Some systems can lose energy.

These are known as a non-conservative systems.

Now, that doesn't mean that the energy that's lost is literally disappearing from the universe... And it doesn't have anything to do with the system's personal politics, either.

It just relates to one of the most fundamental principles of science: that energy can neither be created or destroyed.

But systems can lose energy, like when friction from the box dragging on the floor generates heat.

For non-conservative systems, you can still talk about their kinetic energy or potential energy at any given moment.

But conservative systems let you do much more than that.

A conservative system is one that doesn't lose energy through work.

Say, a simple pendulum.

When the pendulum is at the top of its swing, it stops moving for a brief moment as it changes direction -- meaning that its kinetic energy, at that point, is zero.

But it has lots of potential energy, because the gravitational force can do work on the pendulum, pulling it down until it reaches the bottom of its swing.

At the bottom of the swing, that potential energy becomes zero, because gravity can't pull the pendulum down anymore.

But now the pendulum has lots of kinetic energy, because it's moving through the swing.

And it turns out that, at any given point in the pendulum's motion, its kinetic energy and its potential energy will add up to the same number.

If its potential energy increases?

Its kinetic energy will decrease by the exact same amount, and vice versa.

So, now that we know how to define work, we can use that definition to help explain another common term that physicists have a very specific meaning for: power.

Or, more specifically, average power.

Average power is defined as work over time, and it's measured in Watts, which is just another way of saying Joules per second.

Basically, it's used to measure how much energy is converted from one type to another over time.

So, remember that box you were pulling?

We figured out that you did 250 Joules of work on the box when you moved it 5 meters.

If it took you 2 seconds to move the box, then your average power output was 125 Watts.

You're basically a lightbulb!

Now, we can also describe power in another way, by putting two different facts together: One, that work is equal to force times distance.

And two, that average velocity is equal to distance over time Knowing this, we can say that power is the net force applied to something with a particular average velocity.

If you moved the box 5 meters in 2 seconds, then its average velocity was 2.5 meters per second.

And we already said that you were pulling the box along with a force of 50 Newtons.

So, the force you were using to pull the box, times the box's average velocity, would also give you an average power output of 125 Watts.

The two equations for average power are really describing the same relationship; they're just using different qualities to do it.

We're going to be talking about power a lot when we discuss electricity in later episodes.

It's the best way to calculate how energy moves around in a circuit.

But that's a story for another day.

For now, our work is done.

Today, you learned the two equations we can use to describe work, and that energy is the ability to do work.

We also talked about kinetic and potential energy, and how they play into non-conservative and conservative systems.

Finally, we found two different equations for power.

Crash Course Physics is produced in association with PBS Digital Studios.

You can head over to their channel to check out amazing shows like The Art Assignment, PBS Idea Channel, and PBS Game Show.

This episode of Crash Course was filmed in the Doctor Cheryl C. Kinney Crash Course Studio with the help of these amazing people and our equally amazing graphics team is Thought Cafe.

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NDA 2 2023 Physics Crash Course: Work, Energy And Power [One Shot Revision]

• August 18, 2023

In this article, we will look into the  NDA 2 2023 Physics One Shot Video for the Chapter  on  Work, Energy And Power . This Session will be helpful for last-minute revisions as the  NDA 2 2023  E xam  is Approaching. After reading and learning the session, you will be able to solve each question from the concept of  Work, Energy And Power .

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NDA 2 2023 Examination  will be conducted by the Union Public Service Commission on 03rd September 2023 for admission to the Army, Navy, and Air Force wings of the NDA for the 152nd Course and for the 114th Indian Naval Academy Course (INAC) commencing from 2nd July 2024.

NDA 2 2023 Important Dates:

NDA 2 2023 Exam Dates: UPSC published the  NDA 2 2023 notification  and important dates. Let’s have a look at the schedule for  NDA 2 2023  exam.

NDA 2 2023 Physics :  What are we Going to Learn?

• Introduction
• Conservative Force And Non-conservative Force
• Kinetic energy
• Work kinetic energy theorem
• Gravitational potential energy
• Elastic potential energy
• Law of conservation of energy
• Coefficient Of Restitution /Coefficient Of Resilience
• Elastic Collision
• Inelastic Collision

NDA 2 2023 Physics One Shot Revision: Work, Energy And Power

Strategy To Ace NDA 2 2023 Physics Section

• Always practice the problems. By practice we mean take a pen and paper and solve the problems.
• Solving previous years’ questions will give you an idea of the exam pattern and help you become familiar with the types of questions asked. It will also improve your time management skills.
• Formulae and SI units are the most important features in Physics. To memorize them, write them three to four times.
• Take NDA Mock Tests without fail.
• It can be challenging to prepare for this subject as it requires a lot of in-depth study and practice. In order to prepare for the different topics for the NDA Physics section, the aspirants must practice as many questions as they can.
• On the day of the exam, stay calm and confident. Avoid last-minute cramming and trust in your preparation. Read each question carefully and manage your time effectively.

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