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•Types of energy•7 forms of energy•Energy Resources•How Electricity is produced
• 2 types of energy– Kinetic energy energy in motion, if it is not
moving it does not have kinetic energy.– Potential energy stored energy in an object
due to its position.
• The more mass the more energy it has. This is because it takes more energy to move the bowling ball
A
B
Forms of energyMR. SCENT
• M- Mechanical• R- Radiant
• S- Sound• C- Chemical• E- Electric• N- Nuclear• T-Thermal
Mechanical Energy: the energy that puts something in motion. It pulls, pushes, twists, turns and throws.
Your body converts chemical energy in food to mechanical energy in your body.
Radiant Energy: also known as light energy is waves caused by vibrations of electrically charged particles.
Plants use radiant energy from the sun during photosynthesis to make chemical energy for the plant to use
• Radiant energy type of energy light carries. • Light can either be absorbed, transmitted, or
reflected. • If an object absorbs light it will get warmer.
Object Reflecting
light
ObjectTransmitting
light
Object Absorbing
light
light
light
light
Object Absorbing
light
Sound Energy: vibrations or waves caused by something.
Air particles
Sound waves travel through a medium such as air particles, water or wood (radiant energy does not)
• Chemical energy: is when chemicals break apart into new chemicals.
• When you start off with something and end with something different.
Sugar Molecule
Food
energy
• Electric Energy is the energy of moving electrons
• Energy carried through electrical currents is called electrical energy.
• Electricity is measured in voltage.
Generating electrical energy
• Electrical energy is formed by a generator (device that transforms kinetic energy into electrical energy)
How electrical power plants work.Spinning turbines Rotate the Generator Producing electricity
Steam rushes Through turbines
(fan blades)Causing them
to spin.
Boiling water creates Steam which rises
Coal and oil are burned to Create enough heat to boil water.
generator
• Nuclear energy is energy taken from the nucleus of an atom.
• 20% of electrical energy is produced in a nuclear power plant.
Nuclear power plant
nucleusenergy
atom
Nuclear Power
• Energy is released when atoms from the element Uranium (which is radioactive) split apart in a nuclear reaction.
• This radioactive waste can cause serious harm to organism. It remains radioactive for thousands of years. Safe disposal of this waste is important.
Different kinds of energy can come from 1 source. What types come this…
(chemical)Wax to flame.
(radiant)Flame gives
Off light
(Thermal)Candle gives
Off heat