Energy is all around us
Text z Príbehu
- Energy is all around us
- Hi ! My name is Ayden.
- Did you know that energy can be found all around us?
- Nature of Energy
- Energy can be either, mechanical, chemical, nuclear, light (electrical), or in gravitational form.
- Energy is only transferred
- This carnival ride goes from Potential Energy to Kinetic Energy. This an example of a transfer of energy. Wheeeeeeeeeee!
- Potential Energy
- The position this mechanical ride is in, is a good example of Potential Energy. The ride has stored energy that is at this moment not being used.
- Mechanical Energy
- This car is an example of Mechanical energy, that contains both Potential energy and kinetic energy. Right now the energy is in Potential mode, but once I start the car and drive away, it will be in Kinetic energy mode. Let's ride...!!!!
- Kinetic Energy
- Here I am Just standing on the field. I have Potential Energy.
- But here I am walking on the football field. I have Kinetic Energy.
- The Pulley Example
- Here I am at home getting ready to pull this box up with with my "stored" Potential Energy.I better be careful, or the box will tumble down the stairs!!!Yiiiikeeesss!!!
- Tug a War. Kinetic Energy v. Gravitational force.
- Man ! This box is HEAVY!! I can't hold it!! Gravitational forces are pulling it down!!
- Gravitational Force wins.
- Oops! The gravitational force was too much for me to handle. The box was heavy and I did not have enough potential energy to transfer into Kinetic Energy. I should have measured how much energy I needed.Dad is going to kill me!!
- Measuring Energy
- So, according to my dad's computer, I need to use the formula W=F*D to figure out how much energy I needed to pull the box out of the attic
- Energy can be found everywhere in our lives.-1-
- Energy is everywhere
- So you see energy is everywhere. I think I am going to use some of my Joules up from all of my Potential energy that I have stored and go for a swim in my pool.
- Energy can be found in many different forms, such as mechanical, chemical, nuclear, light and gravitational.-2-
- In science, energy is neither created nor destroyed but rather just transferred from one form to another. This is known as the Law of Conservation of Energy.-3-
- Potential Energy is energy such as mechanical energy, stored energy or energy caused by its position. Or in layman's terms, stored energy that is waiting to be used.-4-
- Mechanical Energy is the sum of both Kinetic and Potential energy in an object that is used to do work. In this example above, the car will take Ayden home.-5-
- Kinetic Energy is the energy of motion, that can be observed as the actual movement of an object (in this case Ayden walking on the field).-6-
- Here Potential Energy will be transferred into Kinetic Energy by using a mechanical pulley to pull the box up and out of the attic -7-
- Ayden tries to hold on to the box, using all of his Potential and Kinetic Energy.-8-
- Ayden wonders if measuring the amount of energy he needed to move the box would have helped move it safely and defeat the gravitational (pulling down) force.-9-
- The formula to use to Measure energy is W=F*D. W=work, F=force, D=distance (in meters). So W=F(10 newtons) times D(3 meters) = 30 n-m of Joule (energy) to move.-10-
- Energy is not only transferred from one form to another it can also help us complete our tasks in our everyday life-11-
Bolo vytvorených viac ako 30 miliónov storyboardov