Energy: What is it? Forms and States Catherine Walker American Public University.

Slides:

Advertisements

Similar presentations

Energy: Forms and Changes

Advertisements

Energy: Forms and Changes

Energy: Forms and Changes

ENERGY TRANSFORMATIONS

Energy Conversion  Energy can be changed from one form to another. Changes in the form of energy are called energy conversions.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes

Energy. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it as wind.

Energy By: Mr. Meringolo. Before We Begin… Copy down the following questions. You will answer them throughout the powerpoint. Give three examples of when.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Forms of Energy  The five main forms of energy are: Heat Chemical Electromagnetic Nuclear Mechanical.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes Nature of Energy  Energy is involved when: a bird flies. a bomb explodes. rain falls from the sky. electricity flows in a.

Flashbacks  1. Which is an example of a physical change?  A. tarnishing  B. rusting  C. burning  D. melting.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes 1. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel.

Energy & Conservation of Energy Honors Physical Science.

Energy: Forms and Changes. Forms of Energy The five main forms of energy are: –Heat –Chemical –Electromagnetic –Nuclear –Mechanical.

Energy. EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it as wind.

Energy: Forms and Changes. EEnergy is all around you! YYou can hear energy as sound. YYou can see energy as light. AAnd you can feel it as wind.

Energy & Conservation of Energy Honors Physical Science.

CHAPTER 15: ENERGY. You use energy when you: hit a softball. lift your book bag. compress a spring. Living organisms need energy for growth and movement.

OM INSTITUTE OF TECHNOLOGY, VANTA VACHHODA Subject : ELEMENTS OF MECHANICAL ENGINEERING Faculty- Mr.Tejas Patel Subject code: BRANCH: ELECTRICAL.

Energy: Forms and Changes

What happens to the gravitation force on an object as it gets closer to another object? Agenda for Monday Nov 10 th 1.Quiz 2.Energy Notes.

What temperature does the thermometer indicate ?

Nature of Energy Energy is all around! You use energy when you: Sound

Forms and Types of Energy Energy: The property of an object that allows it to produce change in the environment or in itself. (The ABILITY to do WORK)

Energy POTENTIAL AND KINETIC. Objectives  Explain the concepts of kinetic and potential energy.  Understand that energy can change from one form into.

Energy Forms. GEORGIA S8P2 Students will be familiar with the forms and transformations of energy –Compare and contrast the different forms of energy.

Energy: Forms and Changes. Forms of Energy  The five main forms of energy are: Thermal (heat) Chemical Electromagnetic (electricity and light) Nuclear.

Composition Notebook Students will take notes on slides Cornell notes begin after that. In your bound composition notebook students will write briefly.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. You you can feel it.

CH.12 Section #1 What is Energy? What is Energy?.

Energy: Forms and Changes Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes Original PowerPoint Presentation is from the Gaston County Schools Secondary Science Website.

Energy. Nature of Energy Energy is all around you. You hear energy as sound, you see energy as light, you can feel energy in wind. Living organisms need.

Energy: Forms and Changes. Nature of Energy Energy is all around you! –Y–You can hear energy as sound. –Y–You can see energy as light. –A–And you can.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Sun Source of almost all the energy is the… Wood, coal, petroleum and natural gas come from the sun. The USA gets 90% of its energy from fossil fuel.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

ENERGY P.E. and K.E. Nature of Energy Energy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it as wind.

Do Now Nov. 4th In your Do Now Book, list ways that you used energy this morning.

Energy: Forms and Changes. Nature of Energy EEnergy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it.

Energy: Forms and Changes

Energy: Forms and Changes

Types and Forms of Energy

Kinetic and Potential Energy have many forms

Energy: Forms and Changes

Energy: Forms and Changes

Energy: Forms and Changes

Energy: Forms and Changes

Energy: Forms and Changes

Energy: Forms and Changes

Energy: Forms and Changes

Science, Matter, Energy, and Systems

Energy: Forms and Changes

Energy: Forms and Changes

Energy: Forms and Changes

Presentation transcript:

Energy: What is it? Forms and States Catherine Walker American Public University

What is Energy? Energy is defined as the ability to do work. If an object or organism does work, the object or organism uses energy. Energy makes everything happen.

Energy is all around you! You can hear energy as sound. CRASH! BANG! Did you hear that sound? It was made by air vibrating. You can see energy as light. Items such as light bulbs and television screens give off this light energy. You can feel energy as wind. Windmills and sailboats are powered by wind energy.

Living Organisms Living organisms need energy for growth and movement. Your body uses energy Even if you’re not moving. Your body needs enough food to keep itself at the right temperature. You use more energy if you’re Active, and less if you’re resting. Your body uses energy even If you’re asleep or resting. Energy is needed to pump Blood around your body. Food contains nutrients which Produce energy and help to Grow and repair the body.

We are always using energy You use energy when you: Hit a baseball Ride a bike Compress a spring Lift your backpack How have you used energy today?

Energy is used for… Can you give an example of how energy is used for residential and commercial, industrial, or transportation purposes?

Energy Conversion Energy cannot be created or destroyed; it can only be changed from one form to another. When energy changes from one form to another the process is called energy conversion. The sun’s energy through solar cells can be converted directly into electricity. In an electric motor, electromagnetic energy is converted to mechanical energy. In a battery, chemical energy is converted into electromagnetic energy. The mechanical energy of a waterfall is converted to electrical energy in a generator.

Green plants convert the sun’s energy into chemical energy through the process of photosynthesis. Energy Conversion Example

States of Energy Kinetic Energy is the energy of motion. Potential Energy is stored energy.

States of Energy

Kinetic Energy The energy of motion is called kinetic energy. The faster an object moves, the more kinetic energy it has. The greater the mass of a moving object, the more kinetic energy it has. Kinetic energy depends on both mass and velocity. What has a greater affect on kinetic energy: mass or velocity? Why? KE = mass x velocity 2 2

Potential Energy Potential Energy is stored energy. Stored chemically in fuel, the nucleus of atom, and in foods. Or stored because of the work done on it: Stretching a rubber band. Winding a watch. Pulling back on a bow’s arrow. Lifting a brick high in the air (known as Gravitational Potential Energy).

Gravitational Potential Energy Water behind a dam, a bolder sitting on a hillside, an apple hanging from tree all have gravitational potential energy.

Gravitational Potential Energy PE = m (mass) x g (gravity) x h (height) A cinder block that weighs 60 kilograms is sitting on a platform 20 meters high. How much gravitational potential energy does it the cinder block have? 60 x 9.8 x 20 = 11,760 Joules of gravitational energy potential

Joules – How Energy is Measured Both kinetic energy and potential energy are measured in Joules. James Prescott Joules ( ) was a British physicist who established the mechanical theory of heat and discovered the first law of thermodynamics. Joules don't equal watts—one is a measurement of energy, one is a measurement of power. 1 Watt = 1 Joule used per each second.

Common Forms of Energy Chemical Electrical Light Mechanical Thermal (heat) Nuclear Note: Not meant as a complete list of energy types.

Online Quiz

Key Concept: Law of Conservation of Energy The total amount of energy in the universe is constant. Energy can be neither created nor destroyed. It can only be converted from one form to another.

Complete Energy Worksheet

Vocabulary Words Electrical energy Energy Energy conversion Gravitational potential energy Joules Kinetic energy Law of conservation of energy Potential energy Light energy Mechanical energy Nuclear energy Thermal energy Complete Concept Map

Sources Slide 1: Slide 2: Slide 4: Slide 5: Baseball: Bicycle: Spring: Backpack: Slide 6: Slide 8: Slide 9: Slide 10: Slide 13: Bolder: Dam: Apple: Slide 17: Slides 5, 6, 11, 14, 18, 20, and 21: Slide 19: Images used for educational purposes only. PowerPoint inspired by: education.jlab.org/jsat/powerpoint/energy_forms_a nd_changes.ppt