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36 Cards in this Set

  • Front
  • Back

What kind of energy does protons have?

positive

What kind of energy does neutrons have?

Neutral

What kind of energy does electrons have?

Negative



How are the elements in the periodic table arranged?

Listed ascending order based on the atomic number above the elements symbol.

The ____ is the distance between two successive points on a wave, measured from crest to crest or trough to trough.

Wavelength

What is the wavelength formula?

velocity= Frequency*wavelength


or


c= v^

The mass of the particles of an atom is?



Atomic Mass

Atomic Mass number is symbolized by what?

The letter A

The number of nuclear protons in an atom is known as?

Atomic Number



Atomic Number is symbolized by what?

The letter Z

What are isotopes?

Are atoms with the same amount of protons in the nucleus

Know how to figure out many protons are in a given element

Protons are the same as the atomic number (Z)

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

Know how to figure the number of neutrons in a given element.

Atomic number is the same as protons and neutrons

Know which equation is used to find # of electrons in a given shell.

2 N squared duh!

Know the forms/ types of energy

Mechanical


Chemical


Heat


Electrical


Nuclear


Electromagnetic

Know and solve Ohms Law

V=IR




V=voltage


I= Ampers


R=Resistance

What are insulators?

Plastic, Rubber, Glass




*Large energy differences between conductor and valence bands; resists electron flow.

What is Coulomb's law?

F= kq1*q2


------------


R2




True relationship of the force between two charges is accurately expressed in Coulombs law.



What is electric potential measured in?

Volts

What is resistance?

The amount of opposition to the current in the circuit

What is the unit of electrical power?

Watt duh

What are good metallic electrical conductors?

Copper, gold, silver

What is the unit of milliampere?

Ampere duh

What is a diode electron tube used for?

replace valve tubes as one way circuits that permit full-wave length rectification

What is a magnetic field produced by?

created when magnetic dipoles orient to create a magnet

What is the definition of thermionic emission?

Cloud emission of electrons from a heated surface

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

What is a generator?

or dynamo, is a device that converts mechanical energy to electrical energy

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

Know about the turns ratio of a transformer

What us the unit of mass

Know about conventional current

Know what material is a semiconductor

both conduct and insulate


-Silicone

What is kinetic energy?

What is binding energy?

..