Science 1 Flashcards
(123 cards)
1
Q
what is an ionic substance
A
metal mixed with something that isn’t a metal
2
Q
definition of static
A
electron build up (lightning) naturally occuring
3
Q
definition of current
A
free flowing electrons always manmade
4
Q
what do protons make up
A
the character of the atom
5
Q
what do electrons provide
A
electricity
6
Q
what is a conductor
A
a substance that allows electrons to pass through easily
7
Q
is there such thing as a perfect insulator or conductor
A
no
8
Q
example of a conductor
A
metal ionic substance in H2O
9
Q
what is an insulator
A
a substance that does not allow the passage of electrons
10
Q
example of an insulator
A
air
11
Q
example of a ressistor
A
computer
12
Q
what does an ionic substance in water do
A
conducts a ton of electricity
13
Q
do protons move
A
no
14
Q
what is physics
A
the study of energy motion
15
Q
electricity is
A
the movement of electrons
16
Q
couloms are
A
lots of electrons
17
Q
proton mass
A
1 amu
18
Q
proton charge
A
+1
19
Q
proton location
A
nucleus
20
Q
proton function
A
confers identity
21
Q
neutron mass
A
1 amu
22
Q
neutron charge
A
0
23
Q
neutron location
A
nucleus
24
Q
neutron funtion
A
creates stability
25
electron mass
0 amu
26
electron charge
-1
27
electron location
electron cloud
28
electron function
reactions
29
how many electrions are in a coulom
6250000000000000000
30
positive charge
electron loss
31
negative charge
electron gain
32
is static DC or AC
DC
33
is static electricity naturally occuring
yes
34
what is EPD
electrical potential difference
35
what is EPD measured in
charge
36
what does EMF stand for
electromotive force
37
how is EMF charged
volts
38
what does a triboelectric scale, electroscope, and vande Graaff generator do
determines what matter gains E and loses E
39
what do all electrons want
to go to the ground
40
first step of friction
build up of E
41
second step of Friction
EPD
42
third step of friciton
EMF (discharge, voltage, lightening)
43
describe friction
discharge within cloud between negative and positive top
44
describe Electric potential difference
is created when typical lightening hits the ground
45
Describe EMF
pulls electrons out of clouds
46
what is resistance
the ability of an object to slow doesn electrons (measured in Ohms)
47
what is voltage
the force that pushes electrons measures in volts
48
what is current
the speed of coulumbs per second (measured in AMPS)
49
direct relationship
both numbers move in the same direction
50
indirect relationship
the numbers move in different directions
51
describe the parts of the atoms
the nucleus has protons and neutrons in the middle, it is surronded by an electron shell
52
how are electrons measured
voltmeter
53
how is charge measured
amenmeter
54
Luigi Galvani
facts: lived in italy, he was a priest but when to medical school
contribute: bioelectrongensis, nerve carried electricity, frankenstein
55
energy is anything that causes...
motion
56
electrons exist in a....
cloud
57
electrons are positive or negative
negative
58
conductor example
metals and ionic substances in water
59
do protons move
no
60
give an example of static
lightenting
61
example of current
outlets
62
count alessandro Guiseppe Antonio
fact: emperor napolean made him a count, discovered methane, born in como
Contribute: modern battery
63
what does static mean
stopped/build up of electrons
64
what does current mean
flow
65
what is EPD measured in
charge
66
what is EMF measured in
volts
67
all matter is ---- charged
neutrally
68
what is a triboelectric scale
what determines what matter gains electrons and loses electrons
69
what is an electroscope
what determines how many electrons are on a charged surface
70
what is a van de Graff generator
it generates static
71
# charge
formula symbol:
measured in:
unit symbol:
q
coulombs
C
72
# current
formula symbol:
measured in:
unit symbol:
I
amps
A
73
# voltage
formula symbol:
measured in:
unit symbol:
V
Volts
V
74
# resistance
forumula symbol:
measured in:
unit symbol:
R
Ohms
O thing
75
what is resistance?
the ability of an object to slow down
76
what is current?
the speed of coulombs per second
77
what is voltage?
the force that pushes electrons measured in volts
78
# energy
Formula symbol:
measured in:
unit symbol:
Notes:
E
Watt Hours
Wh
can be KwH
79
# power
Formula symbol:
measured in:
unit symbol:
Notes:
P
Watts
W
energy over time
80
# time
Formula symbol:
measured in:
unit symbol:
Notes:
T
hours
h
be sure to convert
81
# cost
Formula symbol:
measured in:
unit symbol:
Notes:
c
dollars
$
82
# rate
Formula symbol:
measured in:
unit symbol:
Notes:
R
dollars per KwH
$/KwH
83
what is this
emf source
84
what is this
wire
85
what is this
switch
86
what is this
resistor
87
what is this
light bulb
88
what is this
voltmeter
89
what is this
ammeter
90
what is this
motor
91
what is this
fuse
92
what is this
circuit breaker
93
georg Simon Ohm
built electric circuitry after the girl - V=IR
science teacher
94
do all pathways get the same voltage in a parellel circuit
yes
95
what happens in a parellel circuit
ressistance decreases, current increases
96
difference between a fuse and a circuit breaker
fuse: one time use, uses heat, cheap, easy to install, triggered by current
circuit breaker: measures current, ammeter + switch, expensive, proffesional installation
97
what is a ammeter
measures the speed of electrons in a circuit
no resistance
must be connected in series
98
what is a voltmeter
measures the force of electrons in a circuit
has lots of resistance
must be connected in parellel
99
99
resistance and current of a series circuit
resistance increased
current decreased
100
what do all circuits require
a conductor
a EMF source
a resistor
101
closed circuit
a continious path of electrons
102
open circuit
a break in the path of electrons
103
switch
a reusable break in the circuit
104
what is DC
the electrons go in one direction the whole time
105
what is AC
electricty comes from both sides of the wire
cycelic flow of electrons
106
what are the principles of electromagnetism
electricity will effect a magnetic feild
passing a wire through a magnetic feild
coils move through pass
107
Thomas Edison
DC power is a river flowing
AC power is used for evil power electrons
108
explain a generator
a magnet wrapped in coils is spun really fast
109
where does electricity come from
generators (220) go to high voltage wires (23,000) go to substations (7360) go to transformer (120)
110
energy is the amount of energy used...
in a certain amount of time
111
George WestingHouse
thought DC was dangerous was is war of currents
112
Tesla
created AC current
113
what are the electrical components of the body
nerves, brain, spinal cord, heart and muscle
114
how is electricity generated in the body
by ionoic imbalances on the plasma membrane
115
label the neuron
116
what is important to remember about the neuron
it only moves dendrite to axon
117
what is a schwann cell made of
myelin
118
what is an ion
a atom with a charge
119
label the synapse
120
where do all electrical impulses begin
from the brain and they travel down the spinal cord to the nerves
121
where do reflexes originate
in the spinal cord and do not involve the brain
122
where do cardiac originate
the nodes of the heart generate their own elecrical impulses
