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Intro To Physics > Quiz 2 > Flashcards

Quiz 2 Flashcards

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0
Q

Newtons 2nd law

A
  • force that acts on an object is equal to the mass of the object multiplied by acceleration
  • F=MA
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1
Q

Newtons 1st law

A
  • inertia-resist change in its state of motion

* a body at rest will remain at rest or continue moving unless acted upon by an external force

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2
Q

Newtons 3rd law

A

•to every action there is an equal & opposite reaction

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3
Q

Law of conservation of energy

A
  • energy can neither be created nor destroyed

* however it can change to a different amount of energy

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4
Q

Potential energy

A
  • stored energy

* position of an object

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5
Q

Neil Bohr

A

•proposed the structure of an atom is like a solar system

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6
Q

Nucleus of an atom

A
  • positively charged core of atom

* contains almost the entire mass of atom

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7
Q

Protons

A

•positively charged particles

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8
Q

Neutrons

A
  • neutral particles
  • no change
  • does not influence chemical behavior
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9
Q

Binding energy (energy level)

A
  • nuclear glue
  • holds nucleus together
  • K is higher than L
  • the more tightly bound the harder it is to eject from its shell
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10
Q

Energy state of an atom

A

•positive

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11
Q

(Shell) electrons

A
  • negatively charged

* orbit nucleus & spin while orbiting

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12
Q

Orbit shells K & L

A
  • K=2
  • L=8
  • K & L must contain there max electrons
  • M-Q can have a min of 8 max
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13
Q

Energy state of shell

A
  • negative
  • K lowest state
  • Q highest energy state
  • higher the energy state the more willing it is to give up its energy
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14
Q

Atomic #

A
  • # of protons in nucleus

* found on bottom left

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15
Q

Mass #

A
  • # of protons & neutrons

* found on top left

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16
Q

Atomic weight

A
  • mass of a atom

* relative to atom of carbon 12 isotopes

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17
Q

How to find out how many neutrons in an ATOM

A

•Mass # - Atomic #

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18
Q

Periodic table

A

•orderly arrangement from low to high atomic #

19
Q

Ionization

A

•addition/removal of electron

20
Q

Isotopes

A
  • atoms that have the same # of protons but diff. # of neutrons
  • more or less neutrons
21
Q

Columb’s law

A
  • inverse square law

* X-ray quantity is inversely proportional to the square of its distance

22
Q

Attraction/repulsion

A
  • opposite charges attract

* like charges repel

23
Q

When a positron interacts with an electron what happens

A
  • annihilation of both
  • 2 photons are released in opposite direction
  • B+ symbol
  • shares energy with negatron
24
Q

Concentration of charges on curved surface

A

•where the curve is the greatest

25
Q

Alpha

A
  • symbol looks like a fish a
  • cannot penetrate skin
  • highly ionizing
  • gives up energy quickly
  • high LET
26
Q

Negatron

A
  • symbol B-
  • high penetration
  • bremsstrahlung
27
Q

Earth is a natural ground cuz

A
  • it supplies an endless supply of electrons

* ability to accept & give electrons

28
Q

Wave length

A

•distance between crest to crest

29
Q

Frequency

A

•# of crests per sec(Hz)

30
Q

Amplitude

A

•hight of wave

31
Q

What has longer wave length visible light or xray

A

•visible light

32
Q

•atomic mass when protons electrons and atom is normal

A

•0

33
Q

• symbol of ground

A
  • upside down Xmas tree

* potential 0

34
Q

Conduction

A

•transfer of heat by molecular motion

35
Q

Convection

A

•mechanical transfer of Hot molecules in a gas or liquid form

36
Q

Periodic table groups vertical columns

A

• similar chemical properties

37
Q

Periodic table periods (horizontal row)

A
  • same # of shells but different chemical properties

* Periods

38
Q

Valence

A

•# of electrons in outer shell

39
Q

Ionic bond

A

•negative & positive ions attract forming a compound

40
Q

Polar covalent bonding

A
  • sharing of outer orbital electrons

* tight bond

41
Q

Inherent elements

A

•outermost shell full (stable) cannot enter into chemical bond

42
Q

Gamma

A
  • symbol Y
  • r produced inside nucleus
  • radioactive atom
43
Q

External force

A

•force applied causing deformity

44
Q

Weber

A

•magnetic theory’s

Intro To Physics (7 decks)

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