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1st Quarter GRADE 12 > PHYSICS MT1 > Flashcards

PHYSICS MT1 Flashcards

1
Q

interaction of matter force and energy

A

PHYSICS

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2
Q

solid, liquid or gas

A

MATTER

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3
Q

push or pull

A

FORCE

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4
Q

capcity to do work

A

ENERGY

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5
Q

two branches of physics

A

CLASSICAL
MODERN

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6
Q

before the beginning of 20th century

A

CLASSICAL

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7
Q

during the beginning of 20th century

A

MODERN

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8
Q

under classic (5)

A

MECHANICS
HEAT AND THERMODYNAMICS
OPTICS
ELECTRICITY AND MAGNETISM
ACOUSTICS

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9
Q

under modern ( 5)

A

NUCLEAR
SPECIAL RELATIVITY
GENERAL RELATIVITY
PARTICLE PHYSICS
QUANTUM

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10
Q

deals with motion force work and energy

A

MECHANICS

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11
Q

deals with the effects of heat when added to or removed from system

A

HEAT AND THERMODYNAMICSde

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12
Q

deals with the study of light

A

OPTICS

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13
Q

phenomenona associated wigth electrical changes magentism and its relationship

A

ELECTRICITY AND MAGNETISM

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14
Q

three example of heat transfer

A

CONDUCTION
CONVECTION
RADIATION

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15
Q

heat transfers to your hands as ypu hold the coffee cup

A

CONDUCTION

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16
Q

heat transfers as the barista steams cold milk to make hot cocoa

A

CONVECTION

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17
Q

reheating old cuo of coffee in ksicorwave

A

RADIATION

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18
Q

deals with properties transmission and perception of different tyoes of waves

A

ACOUSTICS

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19
Q

deals a properties reaction within atomic nucleus

A

NUCLEAR PHYSICS

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20
Q

associated when objects moves with speed

A

SPECIAL RELATIVITY

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21
Q

how mayter causes space-time and how the curvature of it dictate the trajectory of matter/light

A

GENERAL RELATIVITY

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22
Q

whatever goes up goes down

A

GRAVITY

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23
Q

building blocks of matter

A

PARTICLE PHYSICS

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24
Q

nature or behavior of matter and energy on the atomic and subatomic levels

A

QUANTUM MECHANICS

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25
Q

detecting smoke in our house

A

NUCLEAR PHYSICS

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26
Q

telescopes , cameras

A

OPTICS

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27
Q

gps

A

SPECIAL RELATIVITY

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28
Q

focuses on gravity

A

GENERAL RELATIVITY

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29
Q

a grain of sand

A

PARTICLE PL\HYSICS

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30
Q

lasers / ELECTRON MICROSCOPES

A

QUANTUM MECHANICS

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31
Q

the process of comparing something with a standard

A

MEASUREMENT

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32
Q

informal system of measurement

A

HANDSPAN
CUBIT
ARMSPAN
FACE
FOOTSPAN

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33
Q

international unit

A

METRIC SYSTEM

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34
Q

basic unit of metric system

A

METER KILOGRAM SECOND
CENTIMETER GRAM SECONDmk

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35
Q

conversion ratio

A

ENGLISH SYSTEM

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36
Q

english system basic unit

A

FOOT POUND SECONDS

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37
Q

modern form of metric system

A

SI UNITS

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38
Q

more precise and definite standard

A

SI UNITS

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39
Q

two types of physical quantities

A

FUNDAMENTAL
DERIVED

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40
Q

base unit of length

A

METER m

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41
Q

base unit of mass

A

KILOGRAMS Kg

42
Q

BASE UNIT of time

A

SECONDS s

43
Q

BASIC UNIT OF ELECTRIC

A

AMPERE (a)

44
Q

BASE UNIT OF TEMperature

A

KELVIN Ko

45
Q

how many is kelvin

A

273

46
Q

base unit of substance

A

MOL (mol)

47
Q

BASE UNIT OF INTENSITY

A

candela (cd)

48
Q

COMBINATION OF fq

A

DERIVED QUANTITIES

49
Q

distance trabvelled

A

M/S

50
Q

accelaeration

A

M/S2

51
Q

gravity acceleration

A

9.8

52
Q

density

A

KG/M3

53
Q

work

A

J . M

54
Q

for simplifying very large amounts

A

SCIENTIFIC NOTATIONS

55
Q

simplest way to convert one unit to another

A

UNIT CONVERSION

56
Q

always equal to one

A

CONVERTION RATIO

57
Q

used to denote decimal multiples and submultiples of the si units

A

SI PREFIXES

58
Q

the measure of mass , the amount of matter

A

GRAM

59
Q

the masure of legth

A

METER

60
Q

the measur efor volu Me

A

LITER

61
Q

the most valuabe tool that physical s cientists use

A

DIMENTIONAL ANALYSIS

62
Q

always have a degree of u certainty because of unavoidable error

A

MEASUREMENTS

63
Q

deviation of a measured value from the expected or true value

A

ERROR

64
Q

way of expressing error

A

UNCERTAINTY

65
Q

measured value true plus uncertainty

A

EQUATION

66
Q

refers to the closeness of measured value to the expected or true value of a physical quantity

A

ACCURACY

67
Q

represents how close or consistent the independent measurement of the same quantity are to one another

A

PRECISION

68
Q

how far/close to the target

A

ACCURACY

69
Q

frequency of same results over time

A

PRECISION

70
Q

result from unpredictable or inevitable changes during data measurement

A

RANDOM ERROR

71
Q

how can be errors reduced?

A

INCREASED NUMBER OF TRIALS
AVERAGING OUT RESULTS

72
Q

calculated when there is an unexpected or true value of a quanitty

A

PERCENT ERROR

73
Q

percent error formula

A

VA - VE OVER VE TIMES 100

74
Q

approximate measured value

A

VA

75
Q

exact value

A

VE

76
Q

measure how far apart the different measured values are from each other and is therefore indication of a measurement

A

PERCENT DIFFERENCE

77
Q

percent difference formula

A

X1-X2 OVER X1 + X2 DIVIDED BY 2 TIMES 100

78
Q

range within which the value of a measured quantity is expected to lie

A

UNCERTAINTY

79
Q

deviation as thre measured value from the true value can be classified as

A

ERROR

80
Q

consistent and repeated errors cause by faulty in instruments or experimental set up

A

SYSTEMATIC ERROR

81
Q

unpreditacble fructuations in measurements due to uncontrollable variables

A

RANDOM ERROR

82
Q

uncertainty of a measurement expressed un the same units as the quality measurements

A

ABSOLUTE UNCERTAINTY

83
Q

ratio of the absolute uncertainty to the measured value

A

RELATIVE UNCERTAINTY

84
Q

measuring devices have finite precision, which introduces uncertainty

A

INSTRUMENTAL LIMITATIONS

85
Q

inconsistencis in reading instruments or recording data can lead to random errors

A

HUMAN ERROR

86
Q

variations in temperature , pressure or humidity

A

ENVIRONMENTAL FACTOR

87
Q

assumptions made in setting up an experiment can introduce systematic errors

A

ASSUMPTION IN EXPERIMENTAL DESIGN

88
Q

3 ways to minimize errors

A

CALIBRATION
REPETITION
CONTROL OF VARIABLES

89
Q

regularly calibrating instruments can reduce synththic error

A

CALIBRATION

90
Q

repeating measurement and taking average can mitigate the impact of errors

A

REPETITION

91
Q

keeping external variables constant during an experiment helps minimize environmental impact

A

CONTROL OF VARIABLES

92
Q

measured the squared deviation of each number in the set from the mean

A

VARIANCE

93
Q

average data set

A

MEAN

94
Q

square root of the bvariance

A

STANDARD DEVIATION

95
Q

measures how diverse or spread out the measurements from their average

A

STANDARD DEVIATION

96
Q

most of the measurements are close to their average

A

SMALL SD

97
Q

means that the measurement are very diverse

A

LARGE SD

98
Q

equation of mean

A

ENi = 1Xi OVER N

99
Q

equation of variance

A

(Xi - mean) ^2 / N

100
Q

EQUATION OF SD

A

square root of variance

1st Quarter GRADE 12 (19 decks)

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