RAD 121 - UNIT 1 POWERPOINT
REVIEW QUESTIONS AND ANSWERS
100% CORRECT
Physics definition - ANSWER-the study of matter, energy and their interactions
Work definition - ANSWER-force acting on a body over distance (measured in joules)
Energy definition - ANSWER-expenditure of energy to do work (potential or actual
ability)
Types of mechanical energy - ANSWER-1. kinetic energy - energy of motion
2. potential energy - stored energy
what is kinetic energy - ANSWER-energy of motion
what is potential energy - ANSWER-stored energy
what is the Law of Conservation of Energy - ANSWER-Energy cannot be created or
destroyed, only transformed or transferred from one form to another
What type of energy is X-rays - ANSWER-Electromagnetic energy
what is in the nucleus of an atom - ANSWER-protons & neutrons
more _________, more binding energy - ANSWER-more protons, more binding energy
Atomic number or "Z" number is what - ANSWER-the number of protons in the nucleus
What is electron binding energy - ANSWER-describes how tightly the electrons are held
in its energy shell/orbital shell
The electron binding energy is the energy required to remove the electron for the
electron shell and is measured in electron volts (ev)
Binding energy is highest in what electron shell and why? - ANSWER-K Shell, K is
closest to the nucleus
What is Ionic bonding - ANSWER-The attraction of two oppositely charged ions
What is Covalent bonding - ANSWER-2 atoms sharing an orbital electron
, what is the Mass Number /Atomic Weight - ANSWER-Number of protons and neutrons
What do atoms that have higher binding energy/absorption have in common? -
ANSWER-Higher Atomic number/Z#
What is the atomic number of hydrogen? - ANSWER-1
What is the atomic number of carbon? - ANSWER-6
What is the atomic number of nitrogen? - ANSWER-7
What is the atomic number of oxygen? - ANSWER-8
What is the atomic number of aluminum? - ANSWER-13
What is the atomic number of calcium? - ANSWER-20
What is the atomic number of molybdenum? - ANSWER-42
What is the atomic number of Iodine? - ANSWER-53
What is the atomic number of barium? - ANSWER-56
What is the atomic number of tungsten? - ANSWER-74
What is the atomic number of lead? - ANSWER-82
What is the atomic number of uranium? - ANSWER-92
What is the atomic number of bone? - ANSWER-20 (calcium)
Filament electrons interacting with the anode results in the conversion of kinetic energy
of the electron into ___________ energy which is and __________ energy which is
________ - ANSWER-thermal energy (heat)
electromagnetic energy (radiation, x-rays).
Filament electrons interacting with the anode results in the conversion of kinetic energy
of the electron into thermal energy (heat) and electromagnetic energy (radiation, x-rays)
99% of the conversion is ______ , 1% _______ - ANSWER-heat
x-rays
We can predict the energy an x-ray will produce by subtracting the difference between
the ______ of the 2 shells involved. - ANSWER-binding energry
The binding energy in the K shell of tungsten is what? - ANSWER-69 or 69.5
REVIEW QUESTIONS AND ANSWERS
100% CORRECT
Physics definition - ANSWER-the study of matter, energy and their interactions
Work definition - ANSWER-force acting on a body over distance (measured in joules)
Energy definition - ANSWER-expenditure of energy to do work (potential or actual
ability)
Types of mechanical energy - ANSWER-1. kinetic energy - energy of motion
2. potential energy - stored energy
what is kinetic energy - ANSWER-energy of motion
what is potential energy - ANSWER-stored energy
what is the Law of Conservation of Energy - ANSWER-Energy cannot be created or
destroyed, only transformed or transferred from one form to another
What type of energy is X-rays - ANSWER-Electromagnetic energy
what is in the nucleus of an atom - ANSWER-protons & neutrons
more _________, more binding energy - ANSWER-more protons, more binding energy
Atomic number or "Z" number is what - ANSWER-the number of protons in the nucleus
What is electron binding energy - ANSWER-describes how tightly the electrons are held
in its energy shell/orbital shell
The electron binding energy is the energy required to remove the electron for the
electron shell and is measured in electron volts (ev)
Binding energy is highest in what electron shell and why? - ANSWER-K Shell, K is
closest to the nucleus
What is Ionic bonding - ANSWER-The attraction of two oppositely charged ions
What is Covalent bonding - ANSWER-2 atoms sharing an orbital electron
, what is the Mass Number /Atomic Weight - ANSWER-Number of protons and neutrons
What do atoms that have higher binding energy/absorption have in common? -
ANSWER-Higher Atomic number/Z#
What is the atomic number of hydrogen? - ANSWER-1
What is the atomic number of carbon? - ANSWER-6
What is the atomic number of nitrogen? - ANSWER-7
What is the atomic number of oxygen? - ANSWER-8
What is the atomic number of aluminum? - ANSWER-13
What is the atomic number of calcium? - ANSWER-20
What is the atomic number of molybdenum? - ANSWER-42
What is the atomic number of Iodine? - ANSWER-53
What is the atomic number of barium? - ANSWER-56
What is the atomic number of tungsten? - ANSWER-74
What is the atomic number of lead? - ANSWER-82
What is the atomic number of uranium? - ANSWER-92
What is the atomic number of bone? - ANSWER-20 (calcium)
Filament electrons interacting with the anode results in the conversion of kinetic energy
of the electron into ___________ energy which is and __________ energy which is
________ - ANSWER-thermal energy (heat)
electromagnetic energy (radiation, x-rays).
Filament electrons interacting with the anode results in the conversion of kinetic energy
of the electron into thermal energy (heat) and electromagnetic energy (radiation, x-rays)
99% of the conversion is ______ , 1% _______ - ANSWER-heat
x-rays
We can predict the energy an x-ray will produce by subtracting the difference between
the ______ of the 2 shells involved. - ANSWER-binding energry
The binding energy in the K shell of tungsten is what? - ANSWER-69 or 69.5
