What is Energy
Content
ENERGY 1)
AMEER
WHAT IS ENERGY?
Energy is the ability to do work. It's what you get when you burn fuel (= stored energy) to move something like a car or kick a ball (= do work). That fuel can be stuff like coal or gas or the hydrogen which powers the sun. What you get is heat and light energy. You can feel the heat from a fire or from the sun on your skin. Ansunlight makes our daytime.
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ENERGY
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2) WHY ENERGY IS A VERY IMPORTANT TO US?
ENERGY IS IMPORTANT TO US TO CARRY OUT OUR LIVING PROSESSES
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ENERGY
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3) THE SOURCES OF ENERGY
Energy is found in different forms including light, heat, chemical, and motion. There are many forms of energy, but they can all be put into two categories: potential and kinetic.
Potential Energy
Potential energy is stored energy and the energy of position — gravitational energy. There are several forms of potential energy. Chemical Energy is energy stored in the bonds of atoms and molecules. Biomass, petroleum, natural gas, and coal are examples of stored chemical energy. Chemical energy is converted to thermal energy when we burn wood in a fireplace or burn gasoline in a car's engine. Mechanical Energy is energy stored in objects by tension. Compressed springs and stretched rubber bands are examples of stored mechanical energy. Nuclear Energy is energy stored in the nucleus of an atom — the energy that holds the nucleus together. Very large amounts of energy can be released when the nuclei are combined or split apart. Nuclear power plants split the nuclei of uranium atoms in a process called fission. The sun combines the nuclei of hydrogen atoms in a process called fusion. Gravitational Energy is energy stored in an object's height. The higher and heavier the object, the more gravitational energy is stored. When you ride a bicycle down a steep hill and pick up speed, the gravitational energy is being converted to motion energy. Hydropower is another example of gravitational energy, where the dam "piles" up water from a river into a reservoir. 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, so powerful that it is not confined to a wire.
Kinetic Energy
Kinetic energy is motion — of waves, molecules, objects, substances, and objects.
Radiant Energy is electromagnetic energy that travels in transverse 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. Thermal Energy, or heat, is the vibration and movement of the atoms and molecules within substances. As an object is heated up, its atoms and molecules move and collide faster. Geothermal energy is the thermal energy in the Earth. 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. A dramatic example of motion is a car crash, when the car comes to a total stop and releases all its motion energy at once in an uncontrolled instant. Sound is the movement of energy through substances in longitudinal (compression/rarefaction) waves. Sound is produced when a force causes an object or substance to vibrate — the energy is transferred through the substance in a wave. Typically, the energy in sound is far less than other forms of energy.
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ENERGY
AMEER
THERE ARE VARIOUS SOURCES OF ENERGY
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ENERGY
AMEER
4) THE TYPE OF ENERGY
Mechanical / Potential Energy • Energy due to a object’s motion (kinetic) or position (potential). Example: • The bowling ball has mechanical energy. • When the ball strikes the pins, mechanical energy is transferred to the pins!
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ENERGY
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The example of potential or mechanical energy
Swimmi
Electrical Energy • Energy caused by the movement of electrons Easily transported through power lines and converted ROCKET into other LAUNCING forms of 6 | P a g energy e •
ICE
ENERGY
AMEER
Chemical Energy • Energy that is available for release from chemical reactions. • The chemical bonds in a matchstick store energy that is transformed into thermal energy when the match 7 | P isgstruck. a e
ENERGY
AMEER
Example of chemical energy
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ENERGY
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Dry cell
Charco al
Heat energy • The heat energy of an object determines how active its atoms are. • A hot object is one whose atoms and molecules are excited and show rapid movement. 9| Page • A cooler object's molecules and atoms will show less movement
ENERGY
AMEER
5) THE INFORMATION OF ENERGY
ENERGY CAN BE TRANSFORMED FROM ONE FORM TO ANOTHER FORM
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ENERGY
AMEER
Switching on the light transform eletrical energy into light energy
Electrical energy
Light energy
A burning candle transform chemical energy into light energy and heat energy
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ENERGY
AMEER
Chemical energy
light energy
Heat
A burning candle transform chemical energy into light energy and heat energy
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ENERGY
AMEER
Solar energy
Electrical energy
Light energy
6) THE RENEWABLE ENERGY AND NONRENEWABLE ENERGY
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ENERGY
AMEER
RENEWABLE ENERGY Energy that can be replenished when used up.
NON - RENEWABLE ENERGY
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ENERGY
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Energy that cannot be replenished when used up
REFERENCE
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ENERGY 1)
AMEER
http://www.eia.doe.gov/kids/energy.cfm? page=about_forms_of_energy-forms http://www.energyquest.ca.gov/story/chapter01.html
2)
3) my first encyclopedia ( energy)
4) http://www.need.org/needpdf/infobook_activities/ElemInfo/IntroE.pdf 5) http://www.google.com.my/images? um=1&hl=en&tbs=isch:1&sa=1&q=solar+energy&aq=f&aqi=g10&aql=& oq=&gs_rfai=
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AMEER
WHAT IS ENERGY?
Energy is the ability to do work. It's what you get when you burn fuel (= stored energy) to move something like a car or kick a ball (= do work). That fuel can be stuff like coal or gas or the hydrogen which powers the sun. What you get is heat and light energy. You can feel the heat from a fire or from the sun on your skin. Ansunlight makes our daytime.
1| Page
ENERGY
AMEER
2) WHY ENERGY IS A VERY IMPORTANT TO US?
ENERGY IS IMPORTANT TO US TO CARRY OUT OUR LIVING PROSESSES
2| Page
ENERGY
AMEER
3) THE SOURCES OF ENERGY
Energy is found in different forms including light, heat, chemical, and motion. There are many forms of energy, but they can all be put into two categories: potential and kinetic.
Potential Energy
Potential energy is stored energy and the energy of position — gravitational energy. There are several forms of potential energy. Chemical Energy is energy stored in the bonds of atoms and molecules. Biomass, petroleum, natural gas, and coal are examples of stored chemical energy. Chemical energy is converted to thermal energy when we burn wood in a fireplace or burn gasoline in a car's engine. Mechanical Energy is energy stored in objects by tension. Compressed springs and stretched rubber bands are examples of stored mechanical energy. Nuclear Energy is energy stored in the nucleus of an atom — the energy that holds the nucleus together. Very large amounts of energy can be released when the nuclei are combined or split apart. Nuclear power plants split the nuclei of uranium atoms in a process called fission. The sun combines the nuclei of hydrogen atoms in a process called fusion. Gravitational Energy is energy stored in an object's height. The higher and heavier the object, the more gravitational energy is stored. When you ride a bicycle down a steep hill and pick up speed, the gravitational energy is being converted to motion energy. Hydropower is another example of gravitational energy, where the dam "piles" up water from a river into a reservoir. 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, so powerful that it is not confined to a wire.
Kinetic Energy
Kinetic energy is motion — of waves, molecules, objects, substances, and objects.
Radiant Energy is electromagnetic energy that travels in transverse 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. Thermal Energy, or heat, is the vibration and movement of the atoms and molecules within substances. As an object is heated up, its atoms and molecules move and collide faster. Geothermal energy is the thermal energy in the Earth. 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. A dramatic example of motion is a car crash, when the car comes to a total stop and releases all its motion energy at once in an uncontrolled instant. Sound is the movement of energy through substances in longitudinal (compression/rarefaction) waves. Sound is produced when a force causes an object or substance to vibrate — the energy is transferred through the substance in a wave. Typically, the energy in sound is far less than other forms of energy.
3| Page
ENERGY
AMEER
THERE ARE VARIOUS SOURCES OF ENERGY
4| Page
ENERGY
AMEER
4) THE TYPE OF ENERGY
Mechanical / Potential Energy • Energy due to a object’s motion (kinetic) or position (potential). Example: • The bowling ball has mechanical energy. • When the ball strikes the pins, mechanical energy is transferred to the pins!
5| Page
ENERGY
AMEER
The example of potential or mechanical energy
Swimmi
Electrical Energy • Energy caused by the movement of electrons Easily transported through power lines and converted ROCKET into other LAUNCING forms of 6 | P a g energy e •
ICE
ENERGY
AMEER
Chemical Energy • Energy that is available for release from chemical reactions. • The chemical bonds in a matchstick store energy that is transformed into thermal energy when the match 7 | P isgstruck. a e
ENERGY
AMEER
Example of chemical energy
8| Page
ENERGY
AMEER
Dry cell
Charco al
Heat energy • The heat energy of an object determines how active its atoms are. • A hot object is one whose atoms and molecules are excited and show rapid movement. 9| Page • A cooler object's molecules and atoms will show less movement
ENERGY
AMEER
5) THE INFORMATION OF ENERGY
ENERGY CAN BE TRANSFORMED FROM ONE FORM TO ANOTHER FORM
10 | P a g e
ENERGY
AMEER
Switching on the light transform eletrical energy into light energy
Electrical energy
Light energy
A burning candle transform chemical energy into light energy and heat energy
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ENERGY
AMEER
Chemical energy
light energy
Heat
A burning candle transform chemical energy into light energy and heat energy
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ENERGY
AMEER
Solar energy
Electrical energy
Light energy
6) THE RENEWABLE ENERGY AND NONRENEWABLE ENERGY
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ENERGY
AMEER
RENEWABLE ENERGY Energy that can be replenished when used up.
NON - RENEWABLE ENERGY
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ENERGY
AMEER
Energy that cannot be replenished when used up
REFERENCE
15 | P a g e
ENERGY 1)
AMEER
http://www.eia.doe.gov/kids/energy.cfm? page=about_forms_of_energy-forms http://www.energyquest.ca.gov/story/chapter01.html
2)
3) my first encyclopedia ( energy)
4) http://www.need.org/needpdf/infobook_activities/ElemInfo/IntroE.pdf 5) http://www.google.com.my/images? um=1&hl=en&tbs=isch:1&sa=1&q=solar+energy&aq=f&aqi=g10&aql=& oq=&gs_rfai=
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