thermal energy
the total energy associated with the movement of all atoms/molecules in a substance. considered to be a form of kinetic energy.
electrical energy
the movement of electric charges (electrons). circuits, static electricity, and lightning are all forms. it is a form of kinetic energy
radiant energy
the electromagnetic energy that travels in transverse waves. all forms of energy on the electromagnetic spectrum are (ex. gamma rays ultra violet, visible light) considered kinetic energy.
chemical energy
the energy that is stored in the bonds of a molecule. it is a form of potential energy.
mechanical energy
can be classified as either kinetic or potential. an object in motion such as a bird flying is kinetic. an object raised above the earths surface is potential.
nuclear energy
be classified as either kinetic or potential. when an atom is split (fission) or atoms are fused together (fusion) energy is released, creating kinetic. the energy that holds atoms together are classified as potential.
nuclear fission
process by which a large nucleus splits into two small nuclei and energy is released.
nuclear fusion
process by which two or more nuclei that have small masses combine to form a larger nucleus and energy is released.
energy
is the ability to do work (or cause change)
kinetic energy
anything in motion has this energy
potential energy
stored energy as a result of something's position or the arrangement of parts.
energy chains
diagrams that help to visualize the transformation of energy from one form to another. the energy source and the energy receiver are named.
the law of conservation of energy
states that energy may change form but cannot be created or destroyed under ordinary conditions. energy lost to the system as thermal energy at each conversion. however, the total amount of energy in the system stays the same throughout any conversion
chemical cell
in this a chemical reaction takes place which transforms chemical energy to electrical energy when the cell is connected to a circuit.
electrolyte
chemicals found in a chemical cell that allows charges to flow. they can be acid or base. in a wet cell it is liquid. in a dry cell it is solid or paste-like.
electrodes
the parts of a cell through which charges enter and exit. these must be two different materials. two similar will produce no voltage. chemical changes between the this is the electrolyte convert chemical energy into electrical energy.
voltage
the potential difference between two points in a circuit. it is measured in volts.
electricity
when the chemical cell is connected in a complete circuit it produces what by means of a chemical reaction?
chemical to electrical
the energy transformation that occurs in the wet cell is what energy to what energy?
potential difference
when there is a chemical reaction between the electrolyte and one of the electrodes it caused electrons to build up on one of the electrodes causing a what between the electrodes?
magnetic field
when this interacts, the forces of repulsion and attract can cause mechanical motion to occur.
electromagnet
when a current carrying wire is wrapped around an iron core, this is produced
electric motor
uses electricity to create an electromagnet inside this. mechanical energy results from the interaction of the magnetic forces of electromagnet and permanent magnets inside this.
electric generator
changes mechanical energy to electrical energy (motion of electricity) by moving a coil of wire through a magnetic field. this magnetic field acts upon the electrons in the wire inducing the flow of current.
thermal energy
the total energy associated with the movement of all atoms/molecules in a substance. considered to be a form of kinetic energy.
electrical energy
the movement of electric charges (electrons). circuits, static electricity, and lightning are all forms. it is a form of kinetic energy
radiant energy
the electromagnetic energy that travels in transverse waves. all forms of energy on the electromagnetic spectrum are (ex. gamma rays ultra violet, visible light) considered kinetic energy.
chemical energy
the energy that is stored in the bonds of a molecule. it is a form of potential energy.
mechanical energy
can be classified as either kinetic or potential. an object in motion such as a bird flying is kinetic. an object raised above the earths surface is potential.
nuclear energy
be classified as either kinetic or potential. when an atom is split (fission) or atoms are fused together (fusion) energy is released, creating kinetic. the energy that holds atoms together are classified as potential.
nuclear fission
process by which a large nucleus splits into two small nuclei and energy is released.
nuclear fusion
process by which two or more nuclei that have small masses combine to form a larger nucleus and energy is released.
energy
is the ability to do work (or cause change)
kinetic energy
anything in motion has this energy
potential energy
stored energy as a result of something's position or the arrangement of parts.
energy chains
diagrams that help to visualize the transformation of energy from one form to another. the energy source and the energy receiver are named.
the law of conservation of energy
states that energy may change form but cannot be created or destroyed under ordinary conditions. energy lost to the system as thermal energy at each conversion. however, the total amount of energy in the system stays the same throughout any conversion
chemical cell
in this a chemical reaction takes place which transforms chemical energy to electrical energy when the cell is connected to a circuit.
electrolyte
chemicals found in a chemical cell that allows charges to flow. they can be acid or base. in a wet cell it is liquid. in a dry cell it is solid or paste-like.
electrodes
the parts of a cell through which charges enter and exit. these must be two different materials. two similar will produce no voltage. chemical changes between the this is the electrolyte convert chemical energy into electrical energy.
voltage
the potential difference between two points in a circuit. it is measured in volts.
electricity
when the chemical cell is connected in a complete circuit it produces what by means of a chemical reaction?
chemical to electrical
the energy transformation that occurs in the wet cell is what energy to what energy?
potential difference
when there is a chemical reaction between the electrolyte and one of the electrodes it caused electrons to build up on one of the electrodes causing a what between the electrodes?
magnetic field
when this interacts, the forces of repulsion and attract can cause mechanical motion to occur.
electromagnet
when a current carrying wire is wrapped around an iron core, this is produced
electric motor
uses electricity to create an electromagnet inside this. mechanical energy results from the interaction of the magnetic forces of electromagnet and permanent magnets inside this.
electric generator
changes mechanical energy to electrical energy (motion of electricity) by moving a coil of wire through a magnetic field. this magnetic field acts upon the electrons in the wire inducing the flow of current.