Uploaded by moeisa867 on Apr 22, 2010
Physical Science project, about ENERGY (:
There are 9 types of energy. Energy forms are either kinetic or potential. Kinetic energy forms are doing work like electrical, thermal, radiant, motion, and sound. Potential energy comes in forms that are stored including chemical, gravitational, mechanical, and nuclear.
Electrical Energy is what is stored in a battery, and can be used to power a cell phone or start a car. Electrical energy is delivered by tiny charged particles called electrons, typically moving through a wire. Lightning is an example of electrical energy in nature. Electrical energy can be produced in several ways. It can be produced by a generator but it can also be produced by a battery in a chemical reaction. Some objects that use electrical energy are television, toaster, microwave, computer and cell phones.
Thermal Energy, or heat, is the vibration and movement of the atoms and molecules in objects. As an object is heated up, its atoms and molecules move and collide faster. Geothermal energy is the thermal energy in the Earth. The sun is the biggest source for thermal energy. Some examples of Thermal energy are A fire, rubbing your hands together causing friction, and boiling water.
Radiant Energy is electromagnetic energy that travels in waves. Radiant energy includes visible light, x-rays, gamma rays and radio waves. Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on Earth possible.
Motion Energy is energy stored in the movement of objects. The faster they move, the more energy is stored. It takes energy to get an object moving and energy is released when an object slows down. Wind is an example of motion energy. Some examples are a moving car, and a swinging swing.
Sound is the movement of energy through substances in longitudinal waves. Sound is produced when a force causes an object or substance to vibrate. The energy is transferred through the substance in a wave.
Chemical Energy is energy stored in the bonds of atoms and molecules. Energy is stored in the bonds of the molecules that make up food. When we eat the food, the large molecules are broken down into smaller molecules that can be used by the cells of the body. Some examples are petroleum, natural gas, and coal.
Gravitational Energy is energy stored in an object's height. The higher and heavier the object, the more gravitational energy is stored.
Mechanical Energy is energy stored in objects by pressure. Some examples are compressed springs, stretched rubber bands, moving water such as river and sliding objects.
Nuclear Energy is energy stored in the nucleus of an atom. Very large amounts of energy can be released when the nuclei are combined or split apart. When Nuclei are spilt, its called fission. When the nuclei combine, its called fusion.
Kinetic energy can also be converted to potential energy. When you ride a bicycle down a steep hill and pick up speed, the gravitational energy is being changed into to motion energy. Another example is when you put your hand over a hot stove you can feel the heat. You are feeling thermal energy in transfer. The atoms and molecules in the metal of the burner are moving very rapidly because the electrical energy from the wall outlet has increased the thermal energy in the burner.
Another example is Electricity can be used to transfer energy from one place to another. Things with energy can make other things happen. For example, electricity transfers energy from the power station to our house where it is used to make objects work. It makes our hair dryers and stoves operate. Another example is when the burning of fossil fuels or the heat from nuclear reactions produces steam that powers a generator which, in turn, creates electricity.
Energy makes change possible. We use it to do things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favorite songs on the radio and lights our homes. Energy is needed for our bodies to grow and it allows our minds to think.
Category:
Tags:
- Energy
- kinetic
- potential
- Kinetic energy
- electrical energy
- thermal energy
- radiant energy
- motion energy
- sound energy
- Potential energy
- chemical energy
- gravitational energy
- mechanical energy
- nuclear energy
- moe isa1
- moe isa867
- monica muniz
License:
Standard YouTube License
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15 likes, 1 dislikes
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heat has t he sign of miami heat
deanx2000 1 month ago
uh ur from America so half the stuff doesn't apply to me Lol
lilpwincess98 1 year ago
Good video ! More Tesla in "Tesla cold electricity" by HorizonDelta
HorizonDelta 1 year ago
This sounds like chemistry, boring :/
even though I had an A in chem lol
xDarkxJonx 1 year ago