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9th grade science final exam > review for science > Flashcards

review for science Flashcards

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1
Q

solution that resist changes in PH

A

buffer

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2
Q

atom that gains electrons in a reaction

A

reduced

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3
Q

liquid substance that contains ions and can conduct electricity

A

electrolytes

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4
Q

coating an object with a thin coating of metal using electrolysis

A

electroplating

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5
Q

non-rechargeable electro­chemical cell in which a chemical reac­tion produces electricity

A

voltaic cell

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6
Q

electrochemical cell that can be recharged with electricity from an outside current source

A

storage cell

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7
Q

type of electrochemical cell designed to have the reactants continually replenished from an outside source

A

fuel cell

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8
Q

study of compounds containing carbon

A

organic chemistry

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9
Q

substances contains only carbon and hydrogen

A

hydrocarbons

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10
Q

these are hydrocarbons with at least 1 triple bond

A

alkynes

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11
Q

aromatic compounds

A

delocalized electrons, stick like structure, not a distinct smell

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12
Q

-COO- which group does it belong in

A

esters

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13
Q

-OH what group is it in

A

hydroxyl group. alcohol

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14
Q

salt containing carboxyl ion

A

soap

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15
Q

hydrocarbons containing one or more double bonds between atoms

A

Alkenes

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16
Q

organic compound with one or more hydrogen atoms replaced by -OH

A

alcohol

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17
Q

functional group -COOH found in carboxylic acids

A

carboxyl group

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18
Q

organic compound con­taining the functional group –COOH

A

carboxylic acids

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19
Q

huge organic molecule composed of many smaller molecules linked together

A

polymer

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20
Q

work equation

A

work=force x distance

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21
Q

pressure equation

A

pressure=force divided by area

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22
Q

wavespeed equation

A

wavelength x frequency

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23
Q

Boyle’s law

A

P1P1=P2P2

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24
Q

charles law

A

v1/t1 = v2/t2

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25
Q

ohm’s law

A

V=IR

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26
Q

orderly process by which scientist study the nature

A

scientific method

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27
Q

every effect has a cause

A

principle of causality

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28
Q

study of reasoning

A

logic

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29
Q

any organic compound similar to soaps but capable of cleaning even in hard water

A

detergent

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30
Q

study of the matter and movement of God’s physical creation

A

science

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31
Q

orderly process by which scientists investigate the secrets of nature

A

scientific method

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32
Q

principle stating that events observed in the universe have rational causes and that the same cause will always have the same effect

A

principle of causality

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33
Q

study of reasoning

A

logic

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34
Q

the conclusion logically follows from its premises but one of the premises includes the assumption that the conclusion is true

A

circular reasoning

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35
Q

attacks the person making an argument instead of challenging the person’s facts, premises, or reasoning

A

ad hominem fallacy

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36
Q

model of a design that is used for testing

A

prototype

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37
Q

study of non living creation

A

physical science

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38
Q

the ability to do work

A

energy

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39
Q

changes the type of substance you’re dealing with

A

chemical change

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40
Q

study of matter and energy and the interactions occurring between them

A

physics

41
Q

study of the composition and interactions between matter and energy

A

chemistry

42
Q

the language of science

A

mathematics

43
Q

most important part of equation

A

equal sign

44
Q

collection of compatible, related units that can be used to measure such quantities as length, mass, weight, or volume

A

system of measurement

45
Q

modification of the metric system with meticulously defined standards

A

SI system

46
Q

lowest possible temperature

A

absolute zero

47
Q

branch of physics developed since the 1900s

A

modern physics

48
Q

branch of physics developed before 1900s

A

classical physics

49
Q

has both magnitude and direction

A

vector

50
Q

change in position divided by time

A

velocity

51
Q

states that for every reaction there is an equal and opposite reaction

A

third law of motion

52
Q

velocity at which the magnitude of drag equals an object’s weight, stopping the object from speeding up

A

terminal velocity

53
Q

device for doing work

A

machine

54
Q

time rate of doing work

A

power

55
Q

attraction between atoms or molecules of the same substance

A

cohesion

56
Q

attraction between molecules of different substances

A

adhesion

57
Q

device using a confined liquid to multiply force

A

hydraulic press

58
Q

empty space with no matter

A

vacuum

59
Q

upward force exerted by a fluid on a solid object placed in the fluid

A

buoyancy

60
Q

kinetic energy

A

energy of motion

61
Q

energy associated with the position of an object and the forces acting upon it

A

potential energy

62
Q

(symbol J) SI unit of work and energy

A

joule

63
Q

(symbol m) metric / SI base unit of length

A

meter

64
Q

(symbol Ω) unit of resistance

A

ohm

65
Q

(symbol Pa) SI unit of pressure

A

pascal

66
Q

(symbol N) SI unit of force and weight

A

newton

67
Q

weakest of the four fudamental forces

A

gravitational force

68
Q

which fundamental force is responsible for most other forces in the universe

A

electromagnetic force

69
Q

strongest fundamental force

A

strong nuclear force

70
Q

device designed to measure the heat involved in physical and chemical changes

A

calorimeter

71
Q

device that automatically regulates temperature

A

thermostat

72
Q

form of heat transfer that can happen in a vacuum

A

radiation

73
Q

regions of concentrated magnetism

A

poles

74
Q

what states that unlike poles attract and like poles repel

A

law of magnetic poles

75
Q

lines that map out magnetic field

A

lines of flux

76
Q

lines that indi­cate the direction and strength of an electric field

A

lines of force

77
Q

most important cause of magnetism

A

electron spin

78
Q

navigational device

A

magnetic compass

79
Q

imaginary line that circles the earth

A

magnetic equator

80
Q

most common generator used today

A

van de graaff

81
Q

where does charge move on an object

A

outside

82
Q

simple device that moves back and forth

A

solenoid

83
Q

electrical switch operated by electrical magnet

A

relay

84
Q

most important device for converting energy to motion

A

electric motor

85
Q

one or more electrochemical cells connected to terminals as a single source of current

A

battery

86
Q

ability of magnetism to convert mechanical motion into electric current

A

electromagnetic induction

87
Q

device that uses electro­magnetic induction to produce electricity

A

generator

88
Q

device that increases and decreases voltage

A

transformer

89
Q

branch of studying electricity that deals with electrons in motion in a vacuum

A

electronics

90
Q

not a good conductor or insulator

A

semi conductor

91
Q

semiconductor device that can perform the same functions as a vacuum­ tube triode

A

transistor

92
Q

device consisting of a sin­gle piece of semiconductor containing an entire electronic circuit

A

integrated circuit

93
Q

device that processes information using electronic circuits

A

computer

94
Q

three reasons why integrated circuits are better

A
  1. cheaper
  2. smaller
  3. more reliable
95
Q

pieces of information

A

data

96
Q

used by mod­ern digital computers to represent data

A

binary

97
Q

physical components of a computer

A

hardware

98
Q

brain of computer

A

cpu

9th grade science final exam (2 decks)

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