PHYSICS FINAL BOSS BRUH Flashcards

1
Q

combination of electricity and magents

A

ELECTROMAGNETISM

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2
Q

when a charge moves through a wire, or the current passed through the wire, the wire’s magnetic domain align itself to create a magnetic field

A

ELECTROMAGNETISM

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3
Q

denotation of magnetic field

A

B

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4
Q

unit of magnetic field

A

TESLA

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5
Q

flow of magnetic field to a given area

A

MAGNETIC FLUX

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6
Q

magnetic flux unit

A

WEBERS

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7
Q

webers

A

WB

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8
Q

magnetic flux formula

A

BACOSTHETA

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9
Q

if perpendicular cos is?

A

ZERO

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10
Q

if parallel cos is?

A

90

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11
Q

the turned or coils of the wires,

A

SOLENOID

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12
Q

more coils/turns?

A

LARGER MAGNETIC FIELD

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13
Q

positive terminal in electromagnet

A

NORTH

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14
Q

negative terminal in electromagnet

A

SOUTH

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15
Q

what will happen to the polarity of the solenoid once the current is reversed?

A

POLARITY OF SOLENOID IS ALSO REVERSED

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16
Q

when conductor experiences a change in magnetic field caused by magnet, it will cause induced current or induced voltage

A

FARADAYS LAW

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17
Q

other temr for faradays law

A

ELECTROMAGNETIC INDUCTION

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18
Q

5 factors affecting induced emf

A

NUMBER OF COILS
MAGNETIC FLUX
MAGNETIC FIELD
TIME
SURFACE AREA

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19
Q

INDUCED EMF UNIT

A

V

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20
Q

fardays law formula

A

N TIMES TRIANGLE MAGNETIC FLUX OVER TRIANGLE TIME

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21
Q

produced by the oscillating electric and magnetic field

A

ELECTROMAGNETIC WAVES

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22
Q

to form em waves , electric and magnetic filed must be

A

PERPENDICULAR

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23
Q

can travel in a vacuum or free space without any medium

A

ELECTROMAGENTIC WAVES

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24
Q

it allows air or other material to store electrical fields

A

PERMITTIVITY

25
it allows the magnetic field to pass through in any kind of material
PERMEABILITY
26
factors why em waves can travel in vacuum
PERMITTIVITY PERMIABILITY
27
rule 2 of em waves
TRAVEL AT SPEED OF LIGHT
28
speed of light
3X10^8
29
rule 3 Em waves
VARIES DEPENDS OF STRNEGTH AND LENGTH OF WAVE
30
more wavelength
LOWER ENERGY
31
more frequency
MORE ENERGY
32
lowest energy em waves
RADIO
33
strongest em waves
GAMMA RAYS
34
used to broadcast radio and tv
RADIO
35
used in cooking radar telephone and other signals
MICROWAVES
36
transmits heat from sun, fires and radiators
INFRARED
37
make things able to be seen
VISIBLE LIGHT
38
absorbed by the skin, used in fluoroscent b=tubes
ULTRAVIOLET
39
used to view the inside of bdies and objects
XRAY
40
used in medicine for killing cancer cells
GAMMA RAYS
41
rule 4 em waves
EM WAVES CAN CARRY ENERGY BY RADIATION
42
em waves rule 5
BEHAVES AS WAVE PARTICLE DUALITY
43
can reflect , refract, scatter and photons can knock off electron particles
WAVE PARTICLE DUALITY
44
rule 6 em waves
CAN MOVE IN VACUUM
45
when an incident ray of light approaches a flat surface or mirror it bounces back the ray of light, with the same and equal angle
REFLECTED RAY
46
the turning back of light to the original medium where it is propagating
SPECULAR REFLECTION
47
where specular reflection
SMOOTH SURFACE
48
light scatters in many directions, making the surfaces visble from all angles
DIFFUSE REFLECTION
49
diffuse reflections where
ROUGH SURFACES
50
occurs when the incident ray passes through two different medium
REFRACTION
51
denser medium
SLOWER LIGHT
52
explains the relationship between the angles of incidence and refracted ray
SNELLS LAW
53
snells law formula
N1SINTHETA=N2SINTHETA
54
occurs when light passed from denser to less dense medium where there is a specific angle of the incident ray refkects the light
TOTAL INTERNAL REFLECTION
55
when the angle of incidence is greater than the critica angle
TIR OCCURS
56
specific angle of incident ray
CRITICAL ANGLE
57
Tir formula
THETAC= SIN-1(N2/N1)
58
if angle of incidence LESSER THAN critical angle
NO TIR
59