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36 Cards in this Set
- Front
- Back
What kind of energy does protons have? |
positive |
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What kind of energy does neutrons have? |
Neutral |
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What kind of energy does electrons have? |
Negative |
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How are the elements in the periodic table arranged? |
Listed ascending order based on the atomic number above the elements symbol. |
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The ____ is the distance between two successive points on a wave, measured from crest to crest or trough to trough. |
Wavelength |
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What is the wavelength formula? |
velocity= Frequency*wavelength or c= v^ |
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The mass of the particles of an atom is? |
Atomic Mass |
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Atomic Mass number is symbolized by what? |
The letter A |
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The number of nuclear protons in an atom is known as? |
Atomic Number |
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Atomic Number is symbolized by what? |
The letter Z |
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What are isotopes? |
Are atoms with the same amount of protons in the nucleus |
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Know how to figure out many protons are in a given element |
Protons are the same as the atomic number (Z) |
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Know how to figure out how many electrons are in a given element? |
Subtract the Atomic number (Z) and Atomic Mass (A) that equals the amount of electrons |
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Know how to figure the number of neutrons in a given element. |
Atomic number is the same as protons and neutrons |
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Know which equation is used to find # of electrons in a given shell. |
2 N squared duh! |
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Know the forms/ types of energy |
Mechanical Chemical Heat Electrical Nuclear Electromagnetic |
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Know and solve Ohms Law |
V=IR V=voltage I= Ampers R=Resistance |
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What are insulators? |
Plastic, Rubber, Glass *Large energy differences between conductor and valence bands; resists electron flow. |
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What is Coulomb's law? |
F= kq1*q2 ------------ R2 True relationship of the force between two charges is accurately expressed in Coulombs law. |
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What is electric potential measured in? |
Volts |
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What is resistance? |
The amount of opposition to the current in the circuit |
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What is the unit of electrical power? |
Watt duh |
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What are good metallic electrical conductors? |
Copper, gold, silver |
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What is the unit of milliampere? |
Ampere duh |
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What is a diode electron tube used for? |
replace valve tubes as one way circuits that permit full-wave length rectification |
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What is a magnetic field produced by? |
created when magnetic dipoles orient to create a magnet |
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What is the definition of thermionic emission? |
Cloud emission of electrons from a heated surface |
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What is a rectifier? |
Create electrical one way streets by permitting electrons to flow easily in one direction while offering a high resistance to movement in the other direction |
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What is a generator? |
or dynamo, is a device that converts mechanical energy to electrical energy |
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What is the difference between step up and step down transformers? |
Step-up= to provide high voltage to the X-ray tube Step-down= fewer turns in the secondary than the primary-high current to X-ray tube |
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Know about the turns ratio of a transformer |
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What us the unit of mass |
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Know about conventional current |
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Know what material is a semiconductor |
both conduct and insulate -Silicone |
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What is kinetic energy? |
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What is binding energy? |
.. |