SlideShare a Scribd company logo
Unit 2 Lesson 2 Kinetic and Potential Energy
Copyright © Houghton Mifflin Harcourt Publishing Company
On the Move
Copyright © Houghton Mifflin Harcourt Publishing Company
What is kinetic energy?
• Energy is the ability to cause change. There are
different forms of energy. One form is kinetic
energy, the energy of motion.
• Every moving object has kinetic energy. The
faster an object moves, the more kinetic energy it
has. If two objects move at the same speed, the
object that has more mass will have more kinetic
energy.
Unit 2 Lesson 2 Kinetic and Potential Energy
How is the kinetic energy of an object
calculated?
• The kinetic energy of an object equals one-half
the object’s mass (m) times the square of its
volume (v).
• Kinetic energy = mv2
• When mass is expressed in kilograms (kg) and
speed in meters per second (m/s), kinetic energy
is expressed in joules (J).
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 2 Lesson 2 Kinetic and Potential Energy
1
2
It Could Change
Copyright © Houghton Mifflin Harcourt Publishing Company
What determines the potential energy
of an object?
• An object that is not moving can still have energy.
Potential energy is the energy an object has
because of its position, condition, or chemical
composition.
• An object has elastic potential energy when it has
been stretched or compressed. Elastic potential
energy is stored in a stretched spring or a rubber
band.
Unit 2 Lesson 2 Kinetic and Potential Energy
What determines the potential energy
of an object?
• An object has gravitational potential energy due to
its position above the ground. An object held
above the ground has the potential to fall. The
higher the object is above the ground, the greater
its gravitational potential energy.
• Potential energy that depends on an object’s
position is referred to as mechanical potential
energy.
• A substance stores chemical potential energy as a
result of its chemical bonds. Some of that energy
can be released during chemical reactions.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 2 Lesson 2 Kinetic and Potential Energy
How is the gravitational potential
energy of an object calculated?
• The gravitational potential energy of an object
equals its mass (m) times its height above the
ground (h) times the acceleration due to Earth’s
gravity (g).
• Gravitational potential energy = mgh
• An object’s mass is expressed in kilograms. An
object’s height above the ground is expressed in
meters. The acceleration due to Earth’s gravity is
9.8 m/s2
.
• Potential energy is expressed in units of joules.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 2 Lesson 2 Kinetic and Potential Energy
How is the gravitational potential
energy of an object calculated?
• When does the bouncing ball have zero
gravitational potential energy?
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 2 Lesson 2 Kinetic and Potential Energy
It All Adds Up!
Copyright © Houghton Mifflin Harcourt Publishing Company
How is the mechanical energy of an
object calculated?
• A moving object can have both kinetic and
potential energy. Mechanical energy is the
energy possessed by an object due to its motion
and position.
• The sum of an object’s kinetic energy (KE) and
mechanical potential energy (PE) is its mechanical
energy (ME).
• ME = KE + PE
Unit 2 Lesson 2 Kinetic and Potential Energy
How is the mechanical energy of an
object calculated?
• If the object’s only potential energy is
gravitational potential energy, you can use the
following equation to find mechanical energy.
• ME = mv2
+ mgh
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 2 Lesson 2 Kinetic and Potential Energy
1
2
How is the mechanical energy of an
object calculated?
• As the basketball falls to the ground, its kinetic
energy increases and its gravitational potential
energy decreases. However, its mechanical energy
remains constant.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 2 Lesson 2 Kinetic and Potential Energy

More Related Content

What's hot

WORK POWER AND ENERGY
WORK POWER AND ENERGYWORK POWER AND ENERGY
WORK POWER AND ENERGY
Bernard Cid
 
Energy, Work & Power
Energy, Work & PowerEnergy, Work & Power
Energy, Work & Power
Stephen Taylor
 
Electricity and magnetism
Electricity and magnetismElectricity and magnetism
Electricity and magnetism
Rodtips
 
Physics-CIRCULAR MOTION
Physics-CIRCULAR MOTIONPhysics-CIRCULAR MOTION
Physics-CIRCULAR MOTION
vasudha7
 
Types of energy ppt 1
Types  of energy ppt 1 Types  of energy ppt 1
Types of energy ppt 1
nermine_ghis
 
Kinetic energy
Kinetic energyKinetic energy
Kinetic energy
Jimnaira Abanto
 
Forces gr.7
Forces gr.7Forces gr.7
Forces gr.7
Ruba Salah
 
Energy Transformation
Energy TransformationEnergy Transformation
Energy Transformation
Emily Neistadt
 
Energy Transfers 1
Energy Transfers 1Energy Transfers 1
Energy Transfers 1Alan Wrafter
 
Introduction to Physics Power Point
Introduction to Physics Power PointIntroduction to Physics Power Point
Introduction to Physics Power PointJoyce Gridley
 
Acceleration
AccelerationAcceleration
Accelerationtifcali
 
Work and Energy in Physics
Work and Energy in PhysicsWork and Energy in Physics
Work and Energy in Physics
Larry Sultiz
 
Work and Energy
Work and EnergyWork and Energy
Work and Energy
meenng
 
Energy ppt[1]
Energy ppt[1]Energy ppt[1]
Energy ppt[1]
mrspena
 
Mechanical energy
Mechanical energyMechanical energy
Mechanical energy
John Florentino E Echon
 

What's hot (20)

WORK POWER AND ENERGY
WORK POWER AND ENERGYWORK POWER AND ENERGY
WORK POWER AND ENERGY
 
Energy, Work & Power
Energy, Work & PowerEnergy, Work & Power
Energy, Work & Power
 
Electricity and magnetism
Electricity and magnetismElectricity and magnetism
Electricity and magnetism
 
Physics-CIRCULAR MOTION
Physics-CIRCULAR MOTIONPhysics-CIRCULAR MOTION
Physics-CIRCULAR MOTION
 
Work in physics
Work in physicsWork in physics
Work in physics
 
Types of energy ppt 1
Types  of energy ppt 1 Types  of energy ppt 1
Types of energy ppt 1
 
Kinetic energy
Kinetic energyKinetic energy
Kinetic energy
 
Momentum
 Momentum Momentum
Momentum
 
Forces gr.7
Forces gr.7Forces gr.7
Forces gr.7
 
Energy Transformation
Energy TransformationEnergy Transformation
Energy Transformation
 
PROJECTILE MOTION
PROJECTILE MOTIONPROJECTILE MOTION
PROJECTILE MOTION
 
Energy Transfers 1
Energy Transfers 1Energy Transfers 1
Energy Transfers 1
 
Introduction to Physics Power Point
Introduction to Physics Power PointIntroduction to Physics Power Point
Introduction to Physics Power Point
 
Acceleration
AccelerationAcceleration
Acceleration
 
Work and Energy in Physics
Work and Energy in PhysicsWork and Energy in Physics
Work and Energy in Physics
 
Work and Energy
Work and EnergyWork and Energy
Work and Energy
 
Energy ppt[1]
Energy ppt[1]Energy ppt[1]
Energy ppt[1]
 
Mechanical energy
Mechanical energyMechanical energy
Mechanical energy
 
Describing motion
Describing motionDescribing motion
Describing motion
 
Introduction To Physics
Introduction To PhysicsIntroduction To Physics
Introduction To Physics
 

Similar to Kinatic and potential energy

KE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptxKE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptx
lily rosemary masilang
 
KE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptxKE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptx
lily rosemary masilang
 
Lesson 6_Science 8-Q1W6_Energy a.pptx
Lesson 6_Science 8-Q1W6_Energy a.pptxLesson 6_Science 8-Q1W6_Energy a.pptx
Lesson 6_Science 8-Q1W6_Energy a.pptx
ErlenaMirador1
 
Energy Kinetic and potential.pptx
Energy Kinetic and potential.pptxEnergy Kinetic and potential.pptx
Energy Kinetic and potential.pptx
CitraCirebon
 
Sci8-Q1-1.5-Kinetic-and-Potential-Energy.pdf
Sci8-Q1-1.5-Kinetic-and-Potential-Energy.pdfSci8-Q1-1.5-Kinetic-and-Potential-Energy.pdf
Sci8-Q1-1.5-Kinetic-and-Potential-Energy.pdf
LiezlCaguiat1
 
8th grade PE and KE intro.pptx
8th grade PE and KE intro.pptx8th grade PE and KE intro.pptx
8th grade PE and KE intro.pptx
RebeccaImplicaTuvill
 
8th grade PE and KE introDUCTION FOR STUDENTS
8th grade PE and KE introDUCTION FOR STUDENTS8th grade PE and KE introDUCTION FOR STUDENTS
8th grade PE and KE introDUCTION FOR STUDENTS
levieagacer
 
Factors Affecting Potential and Kinetic Energy.pptx
Factors Affecting Potential and Kinetic Energy.pptxFactors Affecting Potential and Kinetic Energy.pptx
Factors Affecting Potential and Kinetic Energy.pptx
CeciliaSarita2
 
02-06-08 - Energy-Kinetic Energy
02-06-08 - Energy-Kinetic Energy02-06-08 - Energy-Kinetic Energy
02-06-08 - Energy-Kinetic Energywjerlinger
 
Physical sciences
Physical sciencesPhysical sciences
Physical sciences
Msizi Sibisi
 
02-08-08 - Potential Energy
02-08-08 - Potential Energy02-08-08 - Potential Energy
02-08-08 - Potential Energywjerlinger
 
POTENTIAL-AND-KINETIC-ENERGY.pptx
POTENTIAL-AND-KINETIC-ENERGY.pptxPOTENTIAL-AND-KINETIC-ENERGY.pptx
POTENTIAL-AND-KINETIC-ENERGY.pptx
NicoleSMeredores
 
1.6 form 3 energy work and power
1.6 form 3 energy work and power1.6 form 3 energy work and power
1.6 form 3 energy work and power
chris lembalemba
 
1.6 form 3 energy work and power
1.6 form 3 energy work and power1.6 form 3 energy work and power
1.6 form 3 energy work and power
chris lembalemba
 
E1 intro-to-energy
E1 intro-to-energyE1 intro-to-energy
E1 intro-to-energy
Stephanie Mae Beleña
 
EEEYassin imwt 1479 introduction to mechanical power transmission
EEEYassin imwt 1479  introduction to mechanical power transmissionEEEYassin imwt 1479  introduction to mechanical power transmission
EEEYassin imwt 1479 introduction to mechanical power transmission
medoyassin
 

Similar to Kinatic and potential energy (20)

KE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptxKE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptx
 
KE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptxKE Energy and PE Energy Powerpoint no equations manipulated.pptx
KE Energy and PE Energy Powerpoint no equations manipulated.pptx
 
Lesson 6_Science 8-Q1W6_Energy a.pptx
Lesson 6_Science 8-Q1W6_Energy a.pptxLesson 6_Science 8-Q1W6_Energy a.pptx
Lesson 6_Science 8-Q1W6_Energy a.pptx
 
Energy
EnergyEnergy
Energy
 
Energy
EnergyEnergy
Energy
 
Energy Kinetic and potential.pptx
Energy Kinetic and potential.pptxEnergy Kinetic and potential.pptx
Energy Kinetic and potential.pptx
 
Sci8-Q1-1.5-Kinetic-and-Potential-Energy.pdf
Sci8-Q1-1.5-Kinetic-and-Potential-Energy.pdfSci8-Q1-1.5-Kinetic-and-Potential-Energy.pdf
Sci8-Q1-1.5-Kinetic-and-Potential-Energy.pdf
 
8th grade PE and KE intro.pptx
8th grade PE and KE intro.pptx8th grade PE and KE intro.pptx
8th grade PE and KE intro.pptx
 
8th grade PE and KE introDUCTION FOR STUDENTS
8th grade PE and KE introDUCTION FOR STUDENTS8th grade PE and KE introDUCTION FOR STUDENTS
8th grade PE and KE introDUCTION FOR STUDENTS
 
Factors Affecting Potential and Kinetic Energy.pptx
Factors Affecting Potential and Kinetic Energy.pptxFactors Affecting Potential and Kinetic Energy.pptx
Factors Affecting Potential and Kinetic Energy.pptx
 
Ch13s1.08
Ch13s1.08Ch13s1.08
Ch13s1.08
 
02-06-08 - Energy-Kinetic Energy
02-06-08 - Energy-Kinetic Energy02-06-08 - Energy-Kinetic Energy
02-06-08 - Energy-Kinetic Energy
 
Physical sciences
Physical sciencesPhysical sciences
Physical sciences
 
02-08-08 - Potential Energy
02-08-08 - Potential Energy02-08-08 - Potential Energy
02-08-08 - Potential Energy
 
POTENTIAL-AND-KINETIC-ENERGY.pptx
POTENTIAL-AND-KINETIC-ENERGY.pptxPOTENTIAL-AND-KINETIC-ENERGY.pptx
POTENTIAL-AND-KINETIC-ENERGY.pptx
 
1.6 form 3 energy work and power
1.6 form 3 energy work and power1.6 form 3 energy work and power
1.6 form 3 energy work and power
 
1.6 form 3 energy work and power
1.6 form 3 energy work and power1.6 form 3 energy work and power
1.6 form 3 energy work and power
 
Energy
EnergyEnergy
Energy
 
E1 intro-to-energy
E1 intro-to-energyE1 intro-to-energy
E1 intro-to-energy
 
EEEYassin imwt 1479 introduction to mechanical power transmission
EEEYassin imwt 1479  introduction to mechanical power transmissionEEEYassin imwt 1479  introduction to mechanical power transmission
EEEYassin imwt 1479 introduction to mechanical power transmission
 

More from saleem halabi

Solving special systems
Solving special systemsSolving special systems
Solving special systems
saleem halabi
 
making generalizations-
 making generalizations- making generalizations-
making generalizations-
saleem halabi
 
Surface water abd ground water
Surface water abd ground waterSurface water abd ground water
Surface water abd ground water
saleem halabi
 
Solving systems by elimination 5 3
Solving systems by elimination     5 3Solving systems by elimination     5 3
Solving systems by elimination 5 3
saleem halabi
 
Solving system by graphing
Solving system by graphingSolving system by graphing
Solving system by graphing
saleem halabi
 
Classification of living thing holt
Classification of living thing holtClassification of living thing holt
Classification of living thing holt
saleem halabi
 
Chemical reaction
Chemical reactionChemical reaction
Chemical reaction
saleem halabi
 
Classifying triangles Holt
Classifying triangles   HoltClassifying triangles   Holt
Classifying triangles Holt
saleem halabi
 

More from saleem halabi (8)

Solving special systems
Solving special systemsSolving special systems
Solving special systems
 
making generalizations-
 making generalizations- making generalizations-
making generalizations-
 
Surface water abd ground water
Surface water abd ground waterSurface water abd ground water
Surface water abd ground water
 
Solving systems by elimination 5 3
Solving systems by elimination     5 3Solving systems by elimination     5 3
Solving systems by elimination 5 3
 
Solving system by graphing
Solving system by graphingSolving system by graphing
Solving system by graphing
 
Classification of living thing holt
Classification of living thing holtClassification of living thing holt
Classification of living thing holt
 
Chemical reaction
Chemical reactionChemical reaction
Chemical reaction
 
Classifying triangles Holt
Classifying triangles   HoltClassifying triangles   Holt
Classifying triangles Holt
 

Recently uploaded

Home assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdfHome assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdf
Tamralipta Mahavidyalaya
 
Overview on Edible Vaccine: Pros & Cons with Mechanism
Overview on Edible Vaccine: Pros & Cons with MechanismOverview on Edible Vaccine: Pros & Cons with Mechanism
Overview on Edible Vaccine: Pros & Cons with Mechanism
DeeptiGupta154
 
The Accursed House by Émile Gaboriau.pptx
The Accursed House by Émile Gaboriau.pptxThe Accursed House by Émile Gaboriau.pptx
The Accursed House by Émile Gaboriau.pptx
DhatriParmar
 
The basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptxThe basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptx
heathfieldcps1
 
Sha'Carri Richardson Presentation 202345
Sha'Carri Richardson Presentation 202345Sha'Carri Richardson Presentation 202345
Sha'Carri Richardson Presentation 202345
beazzy04
 
Supporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptxSupporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptx
Jisc
 
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
siemaillard
 
Polish students' mobility in the Czech Republic
Polish students' mobility in the Czech RepublicPolish students' mobility in the Czech Republic
Polish students' mobility in the Czech Republic
Anna Sz.
 
The French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free downloadThe French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free download
Vivekanand Anglo Vedic Academy
 
Synthetic Fiber Construction in lab .pptx
Synthetic Fiber Construction in lab .pptxSynthetic Fiber Construction in lab .pptx
Synthetic Fiber Construction in lab .pptx
Pavel ( NSTU)
 
Honest Reviews of Tim Han LMA Course Program.pptx
Honest Reviews of Tim Han LMA Course Program.pptxHonest Reviews of Tim Han LMA Course Program.pptx
Honest Reviews of Tim Han LMA Course Program.pptx
timhan337
 
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
Welcome to TechSoup   New Member Orientation and Q&A (May 2024).pdfWelcome to TechSoup   New Member Orientation and Q&A (May 2024).pdf
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
TechSoup
 
How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...
Jisc
 
The Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdfThe Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdf
kaushalkr1407
 
Phrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXX
Phrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXXPhrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXX
Phrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXX
MIRIAMSALINAS13
 
Adversarial Attention Modeling for Multi-dimensional Emotion Regression.pdf
Adversarial Attention Modeling for Multi-dimensional Emotion Regression.pdfAdversarial Attention Modeling for Multi-dimensional Emotion Regression.pdf
Adversarial Attention Modeling for Multi-dimensional Emotion Regression.pdf
Po-Chuan Chen
 
Model Attribute Check Company Auto Property
Model Attribute  Check Company Auto PropertyModel Attribute  Check Company Auto Property
Model Attribute Check Company Auto Property
Celine George
 
678020731-Sumas-y-Restas-Para-Colorear.pdf
678020731-Sumas-y-Restas-Para-Colorear.pdf678020731-Sumas-y-Restas-Para-Colorear.pdf
678020731-Sumas-y-Restas-Para-Colorear.pdf
CarlosHernanMontoyab2
 
The Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official PublicationThe Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official Publication
Delapenabediema
 
Operation Blue Star - Saka Neela Tara
Operation Blue Star   -  Saka Neela TaraOperation Blue Star   -  Saka Neela Tara
Operation Blue Star - Saka Neela Tara
Balvir Singh
 

Recently uploaded (20)

Home assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdfHome assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdf
 
Overview on Edible Vaccine: Pros & Cons with Mechanism
Overview on Edible Vaccine: Pros & Cons with MechanismOverview on Edible Vaccine: Pros & Cons with Mechanism
Overview on Edible Vaccine: Pros & Cons with Mechanism
 
The Accursed House by Émile Gaboriau.pptx
The Accursed House by Émile Gaboriau.pptxThe Accursed House by Émile Gaboriau.pptx
The Accursed House by Émile Gaboriau.pptx
 
The basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptxThe basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptx
 
Sha'Carri Richardson Presentation 202345
Sha'Carri Richardson Presentation 202345Sha'Carri Richardson Presentation 202345
Sha'Carri Richardson Presentation 202345
 
Supporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptxSupporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptx
 
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 
Polish students' mobility in the Czech Republic
Polish students' mobility in the Czech RepublicPolish students' mobility in the Czech Republic
Polish students' mobility in the Czech Republic
 
The French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free downloadThe French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free download
 
Synthetic Fiber Construction in lab .pptx
Synthetic Fiber Construction in lab .pptxSynthetic Fiber Construction in lab .pptx
Synthetic Fiber Construction in lab .pptx
 
Honest Reviews of Tim Han LMA Course Program.pptx
Honest Reviews of Tim Han LMA Course Program.pptxHonest Reviews of Tim Han LMA Course Program.pptx
Honest Reviews of Tim Han LMA Course Program.pptx
 
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
Welcome to TechSoup   New Member Orientation and Q&A (May 2024).pdfWelcome to TechSoup   New Member Orientation and Q&A (May 2024).pdf
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
 
How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...
 
The Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdfThe Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdf
 
Phrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXX
Phrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXXPhrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXX
Phrasal Verbs.XXXXXXXXXXXXXXXXXXXXXXXXXX
 
Adversarial Attention Modeling for Multi-dimensional Emotion Regression.pdf
Adversarial Attention Modeling for Multi-dimensional Emotion Regression.pdfAdversarial Attention Modeling for Multi-dimensional Emotion Regression.pdf
Adversarial Attention Modeling for Multi-dimensional Emotion Regression.pdf
 
Model Attribute Check Company Auto Property
Model Attribute  Check Company Auto PropertyModel Attribute  Check Company Auto Property
Model Attribute Check Company Auto Property
 
678020731-Sumas-y-Restas-Para-Colorear.pdf
678020731-Sumas-y-Restas-Para-Colorear.pdf678020731-Sumas-y-Restas-Para-Colorear.pdf
678020731-Sumas-y-Restas-Para-Colorear.pdf
 
The Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official PublicationThe Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official Publication
 
Operation Blue Star - Saka Neela Tara
Operation Blue Star   -  Saka Neela TaraOperation Blue Star   -  Saka Neela Tara
Operation Blue Star - Saka Neela Tara
 

Kinatic and potential energy

  • 1. Unit 2 Lesson 2 Kinetic and Potential Energy Copyright © Houghton Mifflin Harcourt Publishing Company
  • 2. On the Move Copyright © Houghton Mifflin Harcourt Publishing Company What is kinetic energy? • Energy is the ability to cause change. There are different forms of energy. One form is kinetic energy, the energy of motion. • Every moving object has kinetic energy. The faster an object moves, the more kinetic energy it has. If two objects move at the same speed, the object that has more mass will have more kinetic energy. Unit 2 Lesson 2 Kinetic and Potential Energy
  • 3. How is the kinetic energy of an object calculated? • The kinetic energy of an object equals one-half the object’s mass (m) times the square of its volume (v). • Kinetic energy = mv2 • When mass is expressed in kilograms (kg) and speed in meters per second (m/s), kinetic energy is expressed in joules (J). Copyright © Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 2 Kinetic and Potential Energy 1 2
  • 4. It Could Change Copyright © Houghton Mifflin Harcourt Publishing Company What determines the potential energy of an object? • An object that is not moving can still have energy. Potential energy is the energy an object has because of its position, condition, or chemical composition. • An object has elastic potential energy when it has been stretched or compressed. Elastic potential energy is stored in a stretched spring or a rubber band. Unit 2 Lesson 2 Kinetic and Potential Energy
  • 5. What determines the potential energy of an object? • An object has gravitational potential energy due to its position above the ground. An object held above the ground has the potential to fall. The higher the object is above the ground, the greater its gravitational potential energy. • Potential energy that depends on an object’s position is referred to as mechanical potential energy. • A substance stores chemical potential energy as a result of its chemical bonds. Some of that energy can be released during chemical reactions. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 2 Kinetic and Potential Energy
  • 6. How is the gravitational potential energy of an object calculated? • The gravitational potential energy of an object equals its mass (m) times its height above the ground (h) times the acceleration due to Earth’s gravity (g). • Gravitational potential energy = mgh • An object’s mass is expressed in kilograms. An object’s height above the ground is expressed in meters. The acceleration due to Earth’s gravity is 9.8 m/s2 . • Potential energy is expressed in units of joules. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 2 Kinetic and Potential Energy
  • 7. How is the gravitational potential energy of an object calculated? • When does the bouncing ball have zero gravitational potential energy? Copyright © Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 2 Kinetic and Potential Energy
  • 8. It All Adds Up! Copyright © Houghton Mifflin Harcourt Publishing Company How is the mechanical energy of an object calculated? • A moving object can have both kinetic and potential energy. Mechanical energy is the energy possessed by an object due to its motion and position. • The sum of an object’s kinetic energy (KE) and mechanical potential energy (PE) is its mechanical energy (ME). • ME = KE + PE Unit 2 Lesson 2 Kinetic and Potential Energy
  • 9. How is the mechanical energy of an object calculated? • If the object’s only potential energy is gravitational potential energy, you can use the following equation to find mechanical energy. • ME = mv2 + mgh Copyright © Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 2 Kinetic and Potential Energy 1 2
  • 10. How is the mechanical energy of an object calculated? • As the basketball falls to the ground, its kinetic energy increases and its gravitational potential energy decreases. However, its mechanical energy remains constant. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 2 Kinetic and Potential Energy