# Shared Flashcard Set

## Details

Physics - Test 1
Chapter 1 & 2
57
Physics
09/16/2017

Term
 Mass is measured in.....
Definition
 kg = kilogram
Term
 Length is measured in...
Definition
 m = meter
Term
 Time is measured in....
Definition
 s = second
Term
 The quantity of matter is...
Definition
 Mass
Term
 The unit of distance measured in meters (m) is....
Definition
 Length
Term
Definition
 coulombs per kilogram (C/kg)
Term
 The measurement for absorbed dose formerly known as 'rad' is....
Definition
 gray (Gy)
Term
 The unit for dose equivalent and formerly known as 'rem' (radiation equivalent man) is now called....
Definition
 seivert (Sv)
Term
 1 kg = how many grams?
Definition
 1,000
Term
 Physics is a branch of which category of science?
Definition
 Physical
Term
 Physics studies the relationship between what two things?
Definition
 energy and matter
Term
 Energy is measured in what unit name?
Definition
 J = joule
Term
 True or False:   Weight and Mass are the same
Definition
 False
Term
 What is E=mc2 ?
Definition
 Einstein's formula for the relationship between matter and energy where,   E = energy M = mass C = constant (the speed of light in a vacuum)
Term
 What does Einstein's theory of relativity state....?
Definition
 "The sum total of all mass and energy in the universe is constant:  matter and energy cannot be created or destroyed, but can be converted from one form to another."
Term
 Tongston - name the Periodic Symbol and # of Protons
Definition
 W and 74
Term
 What contains the protons and neutrons of an atom?
Definition
 Nucleus
Term
 Are electrons positively or negatively charged?
Definition
 Negatively
Term
 True or False   Protons are negatively charged
Definition
 False   They are positively charged
Term
 What name is given to an atom that has lost or gained a neutron, that differs from the number of protons?
Definition
 Isotope
Term
 What is the mathematical formula for Orbital electrons?
Definition
 2(n)2
Term
 Atoms with 8 electrons in their outer shell are considered inert and chemically stable.  What is the name of the rule that states this?
Definition
 Octet rule
Term
 If an atom has less than 4 electrons in its outer shell, what does it do?
Definition
 Gives them away to another atom
Term
 If an atom has more than 4 electrons in its outer shell, what does it do?
Definition
 It takes more from another atom
Term
 True or False   The closer electrons are to the nucleus the tighter the binding energy
Definition
 True
Term
 'ev' stands for:
Definition
 electron volt
Term
 How many kev's are there in 1ev?
Definition
 .001kev
Term
 What is the name of the electrons in the outer-most shell that determine capability of combining with other atoms to form compounds?
Definition
 Valence electrons
Term
 Name the type of energy that an object possesses because of its position.
Definition
 Potential Energy
Term
 What is the specific name of energy that is in motion?
Definition
 Kinetic
Term
 This type of energy results from the movement of electrons (electrical charges).
Definition
 Electrical Energy
Term
 List a type of Electrical energy.
Definition
 Electricity   The study of resting or moving electrical charges.
Term
 What type of energy can behave as both a wave and a particle?
Definition
 Electromagnetic energy (em)
Term
 Are Frequency and Wavelength inversely or directly proportional?
Definition
 Frequency and Wavelength are inversely proportional.
Term
 Are photon energy and frequency inversely or directly proportional?
Definition
 Photon energy and Frequency are directly proportional   (if kVp increases, frequency increases)
Term
 Power is expressed in what unit.
Definition
 watt (W)
Term
 Electricity is measured in what unit?
Definition
 Volt (v)
Term
 How many electrons does an neutral atom have when it contains 8 protons?
Definition
 eight (8)
Term
 If an element has a valence of +1, how many electrons are in its outer-most shell?
Definition
 one (1)
Term
 If an element has a valence of -1, what does this mean?
Definition
 There are only 7 electrons in the outer-most shell, being short 1 electron.
Term
Definition
 The study of x-ray energy and its interaction with specific types of matter, such as living tissue and image receptors.
Term
 What is the term used for 1 or more substances that are combined?
Definition
 Mixture
Term
 A(n) ________ cannot be broken down by ordinary means.
Definition
 element
Term
 What is the term for a specific combination of 2 or more elements?
Definition
 Compound   e.g. NaCl or H2O
Term
 What is the name for the smallest part of a compound that retains the properties of the compound?
Definition
 Molecule
Term
 What is the smallest part of an element?
Definition
 Atom
Term
 List the four (4) fundamental forces in Physics.
Definition
 Strong nuclear force Weak nuclear force Electromagnetism Gravity
Term
 The term Atomic Number is also known as....
Definition
 (Z)
Term
 The process whereby electrons are removed from an atom is termed....
Definition
 Ionization
Term
 Eb is an abbreviation for....
Definition
 Binding Energy
Term
 What is the term for energy that is emitted and transferred through matter?
Definition
Term
 Atomic and molecular bonding is weakest in the form of a gas or solid?
Definition
 gas
Term
 Atomic and molecular bonding is strongest the form of a gas or solid?
Definition
 solid
Term
 Eb is also expressed in what term?
Definition
 ev (electron volts)
Term
 The 12 statements that Rontgen determined about x-rays, #'s 1-4:
Definition
 1. Penetrating and invisible form of EM radiation 2. Electrically neutral 3. Polyenergetic or heterogenous energies 4.  Release heat when passing through matter
Term
 The 12 statements that Rontgen determined about x-rays, #'s 5-8:
Definition
 1. Travel in straight lines 2. Travel at the speed of light 3. Can ionize matter 4. Cause fluorescence in certain crystals
Term
 The 12 statements that Rontgen determined about x-rays, #'s 9 - 12:
Definition
 1. Cannot be focused by a lens 2. Affect photographic film 3. Produce chemical and biological changes in matter through ionization and excitation 4. Produce secondary and scatter radiation
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