Section Test #1 Review Flashcards
Atoms that have the same number of neutrons but different numbers of protons
Isotones
The degree to which a material can be magnetized is its:
Magnetic susceptibility
Any charged particle in motion creates a:
Magnetic field
What is the relation between the energy of a photon to its frequency?
Directly proportional
Heat is transferred from one location to another by:
Conduction, convection, radiation
What is the transfer of energy
Radiation
Electrification can be created by:
Contact, friction or induction
What is the smallest particle that has all the properties of an element?
Atom
What is the study of electric charges in motion?
Electrodynamics
What is one half of the range from crest to valley over which the sine wave varies?
Amplitude
Has the same atomic number and the same atomic mass number
Isomer
Any substance through which electrons flow easily
Conductor
Where do gamma rays come from?
Nucleus
Where do X-rays come from?
Electron cloud
The atomic mass number and the precise mass of an atom are:
Not equal
Objects that can be made into magnets by induction
Ferromagnetic
What is the only difference between X-rays and gamma rays?
The origin
The ability to do work
Energy
The unit of electric potential
Volt
What changes the intensity of alternating voltage and current?
Transformer
What are atoms of various elements that may combine to form structures called?
Molecules
What is not part of the electromagnetic spectrum?
Diagnostic ultrasound
In their normal state, atoms are electrically:
Neutral
What is the electric charge of an atom?
Zero
The electric charge of a conductor is concentrated along the:
Sharpest curvature of the surface
What is described by, the number of wavelengths that pass a point of observation per second?
Frequency
What is the study of stationary electric charges?
Electrostatics
Atoms that have the same atomic number but different atomic mass numbers
Isotopes
The removal of an orbital electron from an atom
Ionization
The SI unit of magnetic field strength
Tesla
At a given velocity, wavelength and frequency are:
Inversely proportional
The quotient of work by time
Power
The kinetic energy of the random motion of molecules
Heat
What is a coil of wire called?
Solenoid
Atomic nuclei that have the same atomic mass number but different atomic numbers
Isobars
The fundamental particles of an atom
Electron, proton, neutron
The ability of a material to attract the lines of magnetic field intensity
Magnetic permeability
What do X-rays behave as though they are?
Particles
What is an xray photon a quantum of?
Electromagnetic energy
What does visible light behave like?
A wave of
Any material that does not allow electron flow
Insulator
The imaginary lines of a magnetic field are always:
Closed loops
A material that under some conditions behaves as an insulator and in other conditions behaves as a conductor
Semiconductor
