[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-detail-568359-en":59,"doc-seo-568359-105":82},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":5,"data":60},{"doc_id":61,"user_id":62,"nickname":63,"user_avatar":64,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":66,"doc_content":67,"file_id":68,"file_url":69,"file_type":70,"file_size":71,"view_count":72,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":73,"language":74,"language_code":75,"site_id":76,"html_lang":75,"table_of_contents":77,"faqs":78,"seo_title":79,"seo_description":66,"update_tm":80,"read_time":81,"preview_page_count":4},568359,1099523882367,"Jordan Avery","https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","What Is Energy? - Lesson 1 - What IsEnergy","Energy makes motion and change possible. The lesson introduces kinetic energy as the energy of motion and potential energy as stored energy due to an object’s position, with examples such as a moving car, food, moving water, lightning, and sunlight. It then groups energy into potential and kinetic forms, compares them through everyday scenarios like sliding or a ball falling, and explains that energy can change from potential to kinetic when objects move or act.","Energy  \nCopyright Cby Harcourt,Inc.  \nAll rights reserved.No part of this publication may be reproduced or transmitted in anyform or by any means,electronic or mechanical,including photocopy,recording,orany information storage and retrieval system,without permission in writing from thepublisher.  \nRequests for permission to make copies of any part of the work should be addressed toSchool Permissions and Copyrights,Harcourt,Inc.,6277 Sea Harbor Drive,Orlando,FL32887-6777.Fax:407-345-2418.  \nHARCOURT and the Harcourt Logo are registered trademarks of Harcourt,Inc.,registered in the United States of America and/or other jurisdictions.  \nPrinted in the United States of America  \nISBN 0-15-343846-0  \n456789101790090807.  \n| Lesson 1   |\n| --- |\n| What Is Energy?...  \u003Cbr>...2   |\n| Lesson 2   |\n| How Can Energy Be Used?...........10   |\n| Lesson 3   |\n| Why Is Energy Important?........  \u003Cbr>....16   |\n\nHarcourt  \nSCHOOL PUBLISHERS  \nOrlando Austin New York San Diego Toronto London  \nVisit The Learning Site!www.harcourtschool.com  \n# What IsEnergy?\n\nVOCABULARY  \nenergy  \n# kinetic energypotentialenergy\n\nEnergy is what makes it possible for things tomove or change.The energy of moving watercan turn a water wheel.  \nKinetic energy is the energy of motion.Anything that is moving has kinetic energy.  \nPotential energy is energy thatan object has because of its posi-tion.It is energy that has notbeen used yet.The toy insidethe box has potential energyto pop out.  \n# READING FOCUS SKILL\n\nCOMPARE AND CONTRAST  \nWhen you compare and contrast you tellhow things are alike and different.  \nLook for ways to compare and contrastforms of energy.  \n# Some Sources of Energy\n\nEnergy is what makes it possible for things tomove or change.Energy has many sources.  \nA moving car gets energy from gasoline,afuel.You get energy from food.Food gives youenergy to move,grow,and change.  \nEnergy from movingwater turns the wheel.  \nLightning iselectric energy.  \nPlants get energy to grow from sunlight.Mostof the energy on Earth comes from the sun'sheat and light.The pictures show other sourcesof energy  \nTell three sources of energy.  \nForms of Energy  \nEnergy can be grouped in two ways.It can bepotential energy or kinetic energy.  \nAnything that is moving has kinetic energy,or energy of motion.When you move down aslide,you have kinetic energy.  \nNow think about sitting at the top of a slide.You are not moving,but you have energy.Youhave potential energy,or energy due to theposition of an object.Your position gives youpotential energy to slide down to the bottom.  \n# Potential energy\n\nThe toy inside the boxhas potential energy to  \nA battery has both potential energy and kineticenergy.But not at the same time.It has potentialenergy when it is not in use.It has kinetic energywhen it is making something work.  \nTell the difference between kineticenergy and potential energy.  \n# Energy Changes\n\nThink about a ball on ashelf.The ball has potentialenergy because of its position.Suppose the ball falls off theshelf and rolls across theroom.Now it is moving.Sothe ball has kinetic energy.Potential energy was  \nchanged to kinetic energy.Children havekinetic energywhen they arejumping.▶","cbCaimFL2AK9PAvE","https://ap.wps.com/l/cbCaimFL2AK9PAvE","pdf",3551144,11,28,"English","en",105,"# What IsEnergy?\n## Vocabulary\n## Reading Focus Skill: Compare and Contrast\n## Some Sources of Energy\n## Forms of Energy\n## Potential energy\n## Energy Changes","[{\"question\":\"What is kinetic energy, and how can you tell?\",\"answer\":\"Kinetic energy is the energy of motion. Anything that is moving has kinetic energy.\"},{\"question\":\"What is potential energy, and what determines it?\",\"answer\":\"Potential energy is energy an object has because of its position. It exists even when the object is not moving.\"},{\"question\":\"How can potential energy change into kinetic energy?\",\"answer\":\"When an object starts moving, its potential energy can be changed into kinetic energy. For example, a ball falling off a shelf shifts from potential to kinetic energy.\"}]","What Is Energy? - Lesson 1 - What IsEnergy | PDF",1791870511,71,{"code":4,"msg":83,"data":84},"ok",{"site_id":76,"language":75,"slug":85,"title":65,"keywords":86,"description":66,"schema_data":87,"social_meta":141,"head_meta":143,"extra_data":145,"updated_unix":146},"what-is-energy-lesson-1-what-isenergy","",{"@graph":88,"@context":140},[89,103,123],{"@type":90,"itemListElement":91},"BreadcrumbList",[92,96,98,101],{"item":93,"name":94,"@type":95,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":97,"name":9,"@type":95,"position":14},"https://docshare.wps.com/document/",{"item":99,"name":20,"@type":95,"position":100},"https://docshare.wps.com/document/exam/",3,{"item":102,"name":65,"@type":95,"position":19},"https://docshare.wps.com/document/what-is-energy-lesson-1-what-isenergy/568359/",{"url":102,"name":65,"@type":104,"image":105,"author":110,"headline":65,"publisher":112,"fileFormat":115,"inLanguage":75,"description":66,"dateModified":116,"datePublished":117,"encodingFormat":115,"isAccessibleForFree":118,"interactionStatistic":119},"DigitalDocument",{"url":106,"@type":107,"width":108,"height":109},"https://docshare.wps.com/thumbnails/what-is-energy-lesson-1-what-isenergy/568359.png","ImageObject",300,407,{"name":63,"@type":111},"Person",{"url":93,"name":113,"@type":114},"DocShare","Organization","application/pdf","2026-11-09","2026-10-13",true,{"@type":120,"interactionType":121,"userInteractionCount":72},"InteractionCounter",{"@type":122},"ViewAction",{"@type":124,"mainEntity":125},"FAQPage",[126,132,136],{"name":127,"@type":128,"acceptedAnswer":129},"What is kinetic energy, and how can you tell?","Question",{"text":130,"@type":131},"Kinetic energy is the energy of motion. Anything that is moving has kinetic energy.","Answer",{"name":133,"@type":128,"acceptedAnswer":134},"What is potential energy, and what determines it?",{"text":135,"@type":131},"Potential energy is energy an object has because of its position. It exists even when the object is not moving.",{"name":137,"@type":128,"acceptedAnswer":138},"How can potential energy change into kinetic energy?",{"text":139,"@type":131},"When an object starts moving, its potential energy can be changed into kinetic energy. For example, a ball falling off a shelf shifts from potential to kinetic energy.","https://schema.org",{"og:url":102,"og:type":142,"og:title":65,"og:site_name":113,"og:description":66},"article",{"robots":144,"canonical":102},"index,follow",{"doc_id":61,"site_id":76},1792070652]