PS+6+-+5th+Period+Brown

__**INTRO TO ENERGY**__ EX: turning on a light bulb EX: petroleum EX: Geothermal energy EX: Kinetic and potentional
 * 1)** **Electrical Energy**- Movement of electric charges
 * 2)** **Chemical Energy**- Energy stored in the bonds of atoms and molecules
 * 3)** **Thermal Energy**- Is the movement/vibrations of atoms and molecules in substances
 * 4) Kinetic Energy**- Energy in the form of motion( 1/2mxv^2)
 * 5)** **Potential Energy**- Stored energy due to postition ( Elastic, Chemical, Gravitational)
 * A.** Gravitational potential- Energy stored by objects due to their position above earth's surface; depends on the distance abouve earth's surface and the objects mass

EX: Mechanical to light energy **4) Light Energy-** Energy that produces light Work=forcexdistance. Unit of work is the joule. There is no work if there is no change in distance. Power=work/time. Units of power=watts.**
 * __Conservation of Energy__**
 * 1) Electrical energy**- movement of electric charges.
 * 2) Energy Transfermation**- Energy changes from one energy to another
 * 3) Thermal Energy**- Vibrations of atoms and molecules in a substance
 * 5) Kinetic Energy-** Energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed
 * 6) Chemical Potential Energy-** Energy stored in chemical bonds
 * 7) Law Of Conservation of Energy-** Energy can't be created nor destroyed
 * 8) Friction-** Suface resistance
 * 9) Fusion-** Atoms combine and release energy
 * 10) Fission-** Atom split apart and release energy
 * __Work and Power__

**__Three ways to improve greater wire resistance:__**
 * __ Static Electricity __**
 * 1)** **Static Electricity** **:** the accumulation of excess electric on an object.
 * 2) Electric Charges:** particles of matter giving rise to all electric and magnetic forces and interactions. The two kinds of charge are given negative and positive
 * 3)** **Conservation of Charges:** states that charge can be transferred from one object to another but cannot be created or destroyed.
 * 4)** **Opposites Attract:** things with different charge attract ( + - attract)
 * 5)** **Conductors:** material, such as copper wire, in which electrons can move easily.
 * 6)** **Insulators:** material in which electrons are not able to move easily, such as glass.
 * 7)** **Metal Conductors:** good for getting heat and electricity
 * 8) Induction:** the act of causing
 * 9) Friction:** Suface resistance
 * 10)** **Conduction:** transfer of thermal energy by collisions betwwen particles in matter at a higher tempature and particles in matter at a lower tempature
 * __Electricity__**
 * 1)** **Voltage:** related to the force that causes electric charges to flow.
 * 2) Volts:** what meausured the voltage
 * 3)** **Current:** flow of electrons.
 * 4)** **Amps:** a measure of the energy carried by a wave.
 * 5)** **Battery****:** a cell that stores energy.
 * 6) Resistance:** The tendencey for a material to appose the flow of electrons, changing electrical energy into thermal and light
 * 7) Conductor:** have less resistance than insulators
 * 8) Insulator:**a material of such low conductivity that the flow of current through it is negligible
 * 1)** Longer wires
 * 2)** Thinner wires
 * 3)** Higher tempatures.

**__ Light bulbs __** 1)** **Magnetism:** the properties and interactions of magnets. [|www.dictionary.com] [|www.energy.gov] [|www.physicsclassroom.com] [|www.coolmagnetmuh.com] [|www.sciencemadesimple.com] 1) Lisa has a copper wire, a permanet magnet, and an iron rod. What can she do with these items to produce an electrical current? A. Place the wir4e near the north pole of the permanet magnet C. Touch the ends of the wire to the poles of the magnet D. Bring the permanet magnet near the end of the iron rod 2) If you have an electrical circuit made of copper, which material below would make a good heat in element? A. pure water B. Glass C. Silver 3) Which of the following devices most likely uses direct current? B. Radio C. Blender D. Television 4) Which of the following is a device that transforms mechanical energy into electrical energy? A. Blender B. Car Engine D. Flashlight 5) Which is an example of chemical energy? A. Horse pulling a cart B. Thermos of hot coffee D. Marching band in a parade 6) The law of Conservation of Energy implies which one of the following statements? A. Light energy is always decreasing B. The kinetic energy of a moving object is always equal to its potential energy D. Thermal energy is always increasing 7) If a rock were thrown up into the air, which of the following would describe the changes in kinetic or potential energy? A. The kinetic energy is increasing as it goes up and dereasing as it falls back down B. The potential energy is increasing as it goes up and decreasing as it falls back down. D. The kinetic energy is decreasing as it goes up and as it falls back down 8) A balloon is rubbed all over with wool. The balloon will now attract the wool beacause? A. The balloon and the wool are magnets C. The balloon and the wool have like charges. D. The balloon and the wool are neutral 9) If a negative charge that is free to move is placed exactly between two positive charges, it will? A. Move to the left B. Move to the right C. Move up or down 10) In the equation for Ohm's Law, I is A. Impedance B. Resistance C. Impulse 11) If a simple circuit has one resistor of 3 Ohms and a current of 3 amps, how many volts is the power source? A. 6 Volts B. 18 Volts C. 3 Volts 12) If you apply a constant force of 1N on a book to pick it up off the floor and set it on a desk 1M high, how much work did you do on the book? A. 0.5J C. 5J D. 10J 13) Which of the following is not a voltage source? A. Battery C. Solor Cell D. Generator 14) A grocery store checks the details of a credit card by having customers move. Magnetic strip on the card past a wire coil. which principle explains mechanical energy? A. On electrical current produce mechanical energy B. A permenet magnet produces a charging magnetic field D. Mechanical energy produces on electrical current 15) Which one of the following is an example in which nuclear fusion occurs? A. Radio activity decay used to destroy cancer cells B. The splitting of U-235 in the atomic bomb D. Radioactive tracers to detect blood clots
 * 9)** **Ohm's Law:** the current in a circuit equals the voltage difference divided by the resistance.
 * 10)** **Series Circuit:** the current has only one loop to flow through. Series circuits are used in flashlights and some holiday lights.
 * 11)** **Parallel Circuits:** contain two or more branches for current to move through.
 * 12)** **Fuses:** one time use.
 * 1)** Incandescent
 * a)** Have a tiny filament that resists the flow of electrons.
 * b)** The filament gets hot and glows to produce light.
 * c)** Very hot and inefficient.
 * 13) Batteries:**Two or more connected cells that produce a direct current by converting chemical energy to electrical energy
 * 14) Chemical Cells:** converts chemical energy into electrical energy
 * __Electricity and Magnetism__
 * 2)** **Magnetic Poles:** region on a magnet where the magneticforce exerted by a magnet is strongest; like poles repel and opposite poles attract.
 * 3)** **Magnetic Field:** surrounds a magnetic and exerts a force on other magnets and objects made of magnetic material.
 * 4)** **Electromagnet:** temporary magnet made by wrapping a wire coil, carrying a current, around an iron core.
 * 5)** **Speaker:** something that sounds come out of.
 * 6)** **Motor:** device that converts electrical energy to mechanical energy by using the magnetic forces between an electromagnetic and a permanent magnet to make a shaft rotate.
 * 7) Commulator:** Used to reverse the direction of current
 * 8)** **Electromagnetic induction:** process in which electric current is produced in a wire loop by a changing magnetic field.
 * 9) Electric Generattor:** A generator that turns mechanical energy to electrical energy
 * 10)** **Direct current:** electric current that flows in only one direction.
 * 11)** **Alternating current:** electric current that reverses its direction of flow in a regular pattern
 * __PICTURES__**
 * //__WEBSITES__//**
 * __Questions__**
 * B. Move the permanet magnet rapidly over the wire**
 * D. Iron**
 * A. Watch**
 * C. Hydroelectric dam**
 * C. Food**
 * C. The amount of energy in a closed system remains constant**
 * C. The potential energy is increasing as it goes up and down**
 * B. The balloon and the wool have opposite charges**.
 * D. not move**
 * D. Current**
 * D. 9 Volts**
 * B. 1J**
 * B. Gasoline**
 * C. A charging magnetic field produces an electrical current**
 * C. The thermo nuclear burning in stars**