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| Electromagnetism controls the structure of all matter. Why? |
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Definition
| It hold everything together |
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Term
| Transferring a surplus of electrons from your body to another object is called an |
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Definition
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| What is the role of a transformer? |
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Definition
| To take a volt, and make into a lower volt |
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| The science or study of lightnening is known as? |
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Term
| Why was the invention of the alternating current induction motor by Tesla so important? |
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Definition
| Not as many wires, More efficent to make electricity |
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Term
| Atoms that gain or lose electrons become charged particles known as |
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Definition
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Term
| Are materials in which charges (Electrons) can move freely? |
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| What is measured in ohms? |
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Term
| The imbalance of and positive charges between objects when they are rubbed together is known as? |
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Definition
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Term
| An electric charge in motion is called? |
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Definition
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Term
| What important event occured in the history of eletricity in 1600? |
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Definition
| Gilbert founded electricity |
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Term
| Give an example of an element that acts as a conducter? |
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Definition
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Term
| All matter is made up of atoms that contain negatively charged particles called? |
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Definition
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Term
| What is the relationship between amperes and electric charge? |
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Definition
| amperes is the measure of electric charge per-second |
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Term
| Who is given credit for developing the first battery in 1800? |
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| Electric charge is measured in units named? |
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Definition
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Term
| The mathmatical formula that expresses the relationship between voltage, current, and resistance is? |
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Definition
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Term
| The branch of physics that deals with static electricity is called? |
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Definition
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Term
| Opposition to current is called? |
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Definition
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Term
| What important contribution did james Maxwell make to the progress of electromagnetism? |
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Definition
| Mathmatics of electromagnetism |
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Term
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Definition
| is what pushes the electrons around |
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Term
| What are two types pf electrical force? |
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Definition
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Term
| define the term " electricity" |
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Definition
| the flow of charged particles |
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Term
| the first electrical generater was developed by? |
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Definition
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Term
| What is the connection between current and voltage |
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Definition
| if you increase the voltage, the current increases |
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Term
| An______Is any sunstance containing free ions that make the substance electrically condutvie. |
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Definition
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Term
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Definition
| is the controle of the flow of current in a circuit |
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| According to our notes, the electrical current in your house is 60 hertz. What does this mean in terms of frequincy. |
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Definition
| how many times it is going in and out per second. |
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Term
| Define electrical generaters in terms of energy transformation? |
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Definition
| is machanical energy being transformed into electric energy |
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Term
| An automatically operated electrical switch desgined to protect an electrical circuit from damage cause by overload or short circuit is called? |
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Definition
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Term
| What is the function of a diode in a circuit? |
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Definition
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Term
| _______ is a unit of packaged electrical circuit |
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Definition
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Term
| Explain the measurement of current in a parallel circuit |
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Definition
| it has many paths to travel and is the sum of all bads together |
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Term
| Define an electrical battery in terms of energy transformation. |
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Definition
| is taking chemical energy and transferring to electrical energy |
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Term
| The electric power company charges you for electric power by the? |
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Definition
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Term
| Explain a 2 HP [horsepower] motor in terms of power or energy |
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Definition
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Term
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Definition
| is the rate of electricity changed into another form energy |
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Term
| Contrast wet and dry cell bateries? |
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Definition
| wet cell is liquid electrolites, dry cell is a paste like electrolites |
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Term
| A path between two or more points along which an electrical current can be carried is called a? |
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Definition
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Term
| Define electrical motors in term of energy transformation |
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Definition
| is taking electrical energy and transforming into mechanical energy |
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Term
| Contrast alternating and direct current? |
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Definition
| Alternating goes back and forth very quickly, Direct only flows in one direction |
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Term
| Wire gauge is measurement of? |
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Definition
| the thickness of a wire, the bigger the number = the smaller the wire. |
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Term
| Why is a wire gauge important in building circuits? |
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Definition
| to know which wire where and how much electricity can flow through it |
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Term
| A light bulb in a circuit is known as the? |
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Definition
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Term
| What does the term "blowing the fuse" mean in terms of current in a circuit? |
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Definition
| to much voltage is flowing through the fuse |
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Term
| An abnormal low-resistance connection between two nodes of an electrical circuit that are meant to be at different voltages is called a? |
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Definition
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Term
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Definition
| is generater of alternating current |
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Term
| The SI unit of the strength of the magnetic field is the? |
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Definition
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Term
| Magnesium[Mg], molybdenum [Mo], and Lithium[Li] are three elemental examples of ____________ materials |
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Definition
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Term
| The magnet on a compass is generally called a? |
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Definition
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Term
| How are magnetic line of force visualized? |
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Definition
| lines with arrows that go out the north pole end and go into the south pole end |
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Term
| The magnetic field of a magnet is created by the? |
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Definition
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Term
| How is a simple electromagnet formed? |
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Definition
| the current of electrons through it and can be turned off and on |
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Term
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Definition
| a material that produces a magnetic field |
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Term
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Definition
| a magnet that has two poles at opposite ends |
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Term
| ___________ materials are those tht show spontaneous magnetization? |
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Definition
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Term
| Fadays Law states that voltage will be "induced" in a coil when? |
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Definition
| the bigger the charge in the magnet field |
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Term
| Whats the function of earth's magnetic field? |
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Definition
| to attrack other objects away from hitting the earth |
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Term
| compasses on earth do not always point directly towards True North. Why? |
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Definition
| because the North pole is really the south and its not the geographic North pole |
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Term
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Definition
| is a smaller way to measure the the strength of a magnet. 1T = 10,000 gause |
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Term
| Two regions of particular high concentration of changed particles that surround the earth are called the? |
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Definition
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Term
| ____________ materials are slightly repelled by a magnetic field and do not retain the magnetic properties when the external field is removed? |
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Definition
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Term
| Contrast permanent and temporary magnets. |
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Definition
| Permanent once magnetized keep a degree of that magnetism, Temporary act like magnets when a strong magnet field is around it |
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Term
| The term magnetic field describes a volume of space where? |
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Definition
| A deterable and measurable charge of energy occurs |
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Term
| According current scientific theory, what is generating the planets magnetic field? |
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Definition
| The rotation of the core of the earth |
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Term
| The poles are the locations on a magnetic field where? |
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Definition
| Where they leave and enter & are the strongest part of the magnet |
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Term
| In ancient greeks and chinese knew about natural magnets, Rare chunks of iron-rich mineral known as? |
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Definition
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Term
| Every magnet has atleast one? |
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Definition
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Term
| The magnetism in electromagnets is generated by? |
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Definition
| the current of electricity |
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Term
| ____________ materials are slightly attracted by a magnetic field and the material but do not retain the magnetic properties when the external field is removed? |
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Definition
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Term
| What is electromagnetic induction? |
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Definition
| Charges moving in a manet field create an electrical field |
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Term
| Earth's magnetic field forms a gigantic "bubble" in space around the earth. The magnetic bubble is called the? |
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Definition
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Term
| In a series circuit, voltage is additive. Explain? |
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Definition
| the more batteries = the more voltage |
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Term
| Explain a 9-volt battery in terms of energy production? |
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Definition
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