Google+

What is Energy?

what_is_energy

Energy occurs in many forms: electricity, nuclear power, gasoline, and our own muscles all provide energy. But, these are only sources of energy, and not energy itself.

Energy is defined as the ability, or potential, to perform work. Science defines work as one physical system working on a second system to produce force applied over distance. Put simply, energy equals the force needed to move an object from one point to another.

Movement is an integral part of energy. Even heat involves movement. Water boils in a kettle because heat from the kettle causes water molecules to move faster. Without that movement, the water would never boil.

Science recognizes two types of energy: kinetic and potential. Kinetic energy is energy associated with actual movement of some kind. A speeding car and a sprinter both possess kinetic energy. The heavier and faster an object, the greater its kinetic energy.

The moment an object stops moving, it loses kinetic energy and gains potential energy. The energy exists, but is stored for later use. Usually an object’s potential energy is in relation to another object. For instance, imagine holding a rock in your hand, above the floor. The rock has potential energy: if you drop the rock, it falls, turning potential energy into kinetic energy. Once the rock hits the ground and stops actually moving, its kinetic energy returns to potential energy.

The Law of Conservation of Matter and Energy dictates that the sum total of matter and energy in the universe remains constant. This means energy isn’t consumed only transferred from one object to another. For instance, throwing a paper plane transfers energy from your body to the plane without diminishing the total amount of energy in the universe.

Click Here to watch this video on redOrbit!

REQUEST INFORMATION

Entertainment

For movies opening August 18, 2017

  OPENING THIS WEEK Kam's Kapsules Weekly Previews That Make Choosing a Film Fun by Kam Williams For movies opening August 18, 2017 BIG BUDGET FILMS The Hitman's Bodyguard (R for graphic violence and pervasive profanity) Unlikely-buddies comedy about an ace bodyguard (Ryan Reynolds) who grudgingly helps a notorious assassin (Samuel L. Jackson) negotiate a dangerous gauntlet en route to the Hague where he's set to testify in 24 … [Read More its Good for You.....]

Lifestyle

The “King” Will Take Center Stage at the 2017 Wildlife Conservation Expo

  The “King” Will Take Center Stage at the 2017 Wildlife Conservation Expo by Amy Lignor   Each and every year the Wildlife Conservation Expo is held to address situations out there that are harming our world and its animal inhabitants. This time around, WCN’s annual Fall Wildlife Conservation Expo in October, will be focusing on various issues, but it is the King of the Jungle who will be taking center stage. For those who are … [Read More its Good for You...]

Outdoors

How Bassmaster Pro Edwin Evers Adjusts the Auto Settings on His Sonar

  How Bassmaster Pro Edwin Evers Adjusts the Auto Settings on His Sonar  by Edwin Evers When it comes to electronics, a question I get asked a lot is, “How do you customize your fish finder settings at the beginning of a day on the water?” The short answer is, “I don’t.”   You might think that a guy who makes his living with a rod and reel and who’s always looking for ways to tweak a lure or find a stronger knot would spend a … [Read More its Good for You...]

Sports

College Football Arriving Soon!

  College Football Arriving Soon! by Amy Lignor   Ask any college football fan and they will tell you that it seems like an eternity waiting for the season to begin. But, have no fear, the kick-off to the college season is almost here, with Colorado State and Oregon State hitting the field on Saturday, August 26th at 2:30 p.m. ET. On the same day, fans of Oregon State and Colorado State will see an active match-up, and Portland … [Read More its Good for You...]

Travel

Going Back in Time on the Ultimate Steamboat Vacation

  Going Back in Time on the Ultimate Steamboat Vacation by Amy Lignor   Many people love taking a cruise. But it is the river cruise on that glorious steamboat that not only offers all the benefits a big ocean liner offers, but also creates a more personalized, intimate vacation experience. It is a unique recipe: being able to witness stunning landscapes, mixed with amazing history, while dining on acclaimed regional cuisine and … [Read More its Good for You...]

Real Estate

Real Estate: Refinancing Rates on the Rise in 2017

  Real Estate: Refinancing Rates on the Rise in 2017 by Amy Lignor   The term ‘meteoric rise’ usually applies to something fun. Think: A Hollywood actor who has been ‘discovered.’) Unfortunately, when it comes to this article, ‘meteoric rise’ is something that will not bring a smile to one’s face. To put it simply, if you wish to refinance your home, you need to do it ASAP. If choosing to wait too much longer, homeowners across the … [Read More its Good for You.....]

Business

Umbrella Insurance: The Safety Net You Need

  Umbrella Insurance: The Safety Net You Need by Amy Lignor   The realm of insurance is just about the most difficult maze to get through. Each and every day it seems the financial and insurance industries are changing. What is not changing, however, is the fact that lawsuits fill up the courts more and more – lawsuits that award cash to third parties even if you don’t happen to have that cash saved. More and more, the words “umbrella … [Read More its Good for You...]

Green Living

Creating the Perfect Vegetable Garden

  Creating the Perfect Vegetable Garden by Amy Lignor   Many are still dealing with that wintery mix Mother Nature just loves to toss down from the sky this time of year. Yet, that gardener living inside the soul – the one just dreaming of the sunny skies and lazy rainy days that are must-haves in order to grow the best vegetables possible – is already jotting down the facts, tricks and tips they need to know in order to make that … [Read More its Good for You...]

Books

Book of Black Heroes

  Book of Black Heroes Political Leaders Past and Present by Gil L. Robertson, IV Foreword by Myrlie Evers-Williams Just Us Books Paperback, $12.95 80 pages ISBN: 978-1-933491-21-9 Book Review by Kam Williams “The first African-American political leaders began to serve following the Civil War...Known as Reconstruction, this period represented a window of opportunity for African-Americans... Many [Black] political leaders emerged … [Read More its Good for You...]