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Unit 7

Electricty and Magnetism Vocab

QuestionAnswer
What is a charged particle called? Ion
unbalanced charges on the surface of a material (STAYS charged) Static Charge
the force of attraction or repulsion between charged objects when opposites attract and like charges repel. Electric Force
the invisible force in the space around a charged object with flowing electrons. This is like a magnet where the outside of the wire has an invisible swirl of electricity. Electric Field
an object or divice that does not easily conduct electricity Insulator
When charges move freely through a material it is then called? Conductor
the release of stored energy- like lightning Electric discharge
a region around a magnetic material or a moving electric charge within which the force of magnetism acts- an invisible force around the magnet. We saw it in class with metal specs flowing out of the north and into the south of the magnet. magnetic field
The atoms inside of a material, that when aligned causes magnetism. (We organized this when we magnetized the sissors.) magnetic Domain
the region surrounding the Earth with a magnetic field, it can protect us from solar flares magnetosphere
the rate at which charges pass a given point electric current
charged particles flowing through a closed wire loop circuit
the potential electrical difference between two points measured in volts voltage
resistance(in ohms) is equal to volts divided by current (in amps) Ohm`s Law
a wire where all parts are connected one after another in a loop and where if 1 bulb goes out, they will all go out series circuit (draw or design it)
a wire loop that is connected in such a branched way that if one bulb goes out the current will still flow through the other bulbs and the rest of the bulbs will not go out parallel circuit (draw or design it)
the rate at which electrical energy does work or provides power where Power is equal to Voltage multiplied by Current. calculates Electric Power P=VI
in ohms, it is a measurement of opposition to flow of electrical current Resistance
What is a two way current, 120 charges per second or 60 cycles, from a spinning magnet in a coil called? Alternating current (AC)
a one way current like a battery is what type of current Direct current (DC)
something that increases or decreases the voltage of a current Transformer
A solenoid is a copper wire wrapped around an iron core that when electricity is added it acts as a magnet. What else is it called? Remember that this turns off and on like the magnet at a car dump. Electromagnet
natural electrical phenomenon that appears as a reddish or greenish light at the poles of the earth. Aurora (Borealis or Australis)
Google an explanation, "Hey Seri". How is an Aurora created?
V=IR Calculate Volts
V=IR Calculate amps of current
V=IR calculate Ohms of resistance
Review Ohms Law Know your units!
Google it. What metals are magnetic?
Do it! Read your class notes and labs. These can be on your quiz!
Start here: Particles rub as they move in the atmosphere, pulling off electrons and storing them in the clouds. ... Expain Ligtning using these terms: Static charge, discharge, attraction of charges.
Google it. It was also in the Teacher's Notes. Why does a person's hair stand on end when lightning is near?
What part on an atom is positive? Proton
What part of an atom is negative? Electron
What part of an atom has no charge? Neutron
The atomic number tells us the number of... Protons and electrons
The atomic mass/ weight tells us ... Neutrons after you subtract the number of protons from the mas
How many electrons fit in shell 1 and 2 2, and 8 respectively.
What is in the nucleus of an atom? Protons and Neutrons
The charges of a magnet are going out of which pole? The North POLE, Just like Santa!
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