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Forms of Energy and Energy Transformation
Transcript of Forms of Energy and Energy Transformation
Forms of Energy and Energy Transformation
Learning Target #1:
Define potential energy. Two types of potential energy are Stored Mechanical Potential energy and Gravitational Potential energy. Define both of these then give one example of Stored Mechanical Potential energy and Gravitational Potential energy.
Learning Target #2:
Learning Target #3:
Define Kinetic Energy. Give 2 examples of an object or substance with kinetic energy.
Learning Target #4:
Give two examples where potential energy is changing into kinetic energy.
Learning Target #5:
Define each form of energy (Chemical Energy, Radiant Energy, Thermal Energy, Electrical Energy, Sound Energy, Nuclear Energy) and give 1 example of each.
For Nuclear Energy, define the process of fission and fusion.
Determine which forms of energy are kinetic energies and which are potential energies (Chemical Energy, Radiant Energy, Thermal Energy, Electrical Energy, Sound Energy, Nuclear Energy).
Define the Law of Conservation of Energy.
Learning Target #6:
Learning Target #7:
Give at least 5 different examples of energy changing from one form to another.
Define renewable and nonrenewable resources. Give examples of renewable and nonrenewable sources of energies. Give one benefit and one consequence that each may have on Society.
"Energy Is the Ability to Do Work."
Potential energy is
stored energy and the energy of position
–gravitational energy. There are several forms of potential energy Ex. Stored Mechanical
Stored Mechanical Energy is
energy stored in objects
by the application of a force.
Compressed springs and stretched rubber bands
are examples of stored mechanical energy.
Energy an object or substance has because of it's position
, anything "up high". For example a
rock resting at the top of a hill
contains gravitational potential energy.
Rock in high altitudes
Energy of motion.
Gasoline in container and gasoline burning
stretched rubber band and released rubber band
Gasoline in a container
Spilled out gasoline burning
From potential to kinetic
Stretched rubber band
Released rubber band
When the rubber band is released its energy changes from potential to kinetic
= Potential energy
= Kinetic energy
Chemical energy Radiant energy Thermal energy Electrical energy Sound Energy Nuclear energy
Is energy stored in the bonds of atoms and molecules
agnetic energy that travels in transverse waves
Thermal energy or heat, is the vibration and movement of the atoms and molecules within substances
Is delivered by tiny charged particles called electrons, typically moving through a wire
Is the movement of energy through substances in longitudinal (compression/rarefaction) waves
Is energy stored in the nucleus of an atom — the energy that holds the nucleus together
The sun combines the nuclei of hydrogen atoms
Nuclear power plants split the nuclei of uranium atoms
Cup of hot tea
"Energy is neither created nor destroyed"
Meaning when we use energy it never disappears, we just change/transform it into another kind of energy.
Arrow shot from cross bow
Energy sources that can be replenished (made again) naturally
Energy sources that cannot be replenished in a short period of time.
Oil and petroleum products, Natural gas, Coal, Uranium
Does not directly emit greenhouse gases
It is more expensive way of getting energy than fossil fuels
Cheaper than renewable energy sources
Produces greenhouse gases and pollution