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Physical Science Honors > Chapter 1-7 > Flashcards

Chapter 1-7 Flashcards

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0
Q

First stop in the scientific method is usually

A

Making an observation

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1
Q

Technology can Best be defined as

A

Applied science

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2
Q

Scientific methods

A

Are a general description of scientific thinking, are used to find and evaluate possible answers to problem, and use critical thinking to solve scientific problems

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3
Q

Which unit is used to measure the height of a bookcase

A

Meter

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4
Q

Unit is used to measure the mass of a computer

A

Kilograms

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5
Q

After Formulating a question, the next step of the scientific method is

A

Research and collect data

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6
Q

Which Graph best shows a change and data over time

A

Line graph

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7
Q

What type of graph best shows of comparison of several items or events

A

Bar graph

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8
Q

What type of graph best shows data better part of a whole

A

Pie chart

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9
Q

Which of the following is equal to 5,800,000,000 cm

A

5.8×10 to the power of 9 cm

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10
Q

How many significant figures are in 7.357

A

Four

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11
Q

Which of the following shows 0.0000043 g.

A

Are 4.3x10 to the power of negative 6 g

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12
Q

Maria is 123 cm tall. her height in meters is

A

1.23 m

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13
Q

Which SI prefix means one one hundredth

A

Centi-

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14
Q

A loaf of bread weighs 1362 grams the weight in kilograms is

A

1.362 KG

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15
Q

SI unit for measuring temperature is

A

Kelvin

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16
Q

The chemical formula for water ,H2O, means that each water molecule contains

A

Two hydrogen Atoms and one

oxygen atom

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17
Q

Which of the following is not a potential sign of a chemical change

A

Evaporation of water

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18
Q

The smallest unit of an element that maintains the properties of an element is a(n)

A

Atom

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19
Q

How many Atoms are in a single molecule of Fe2O3

A

Five

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20
Q

A chemical change occurs whenever

A

New substances form

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21
Q

Matter is defined as anything that

A

Has mass and takes up space

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22
Q

Which of the following is not an example of physical property

A

Reactivity

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23
Q

Disgusting food is an example of

A

Chemical change

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24
Q

Substances that cannot be broken down into simpler substances is an

A

Element

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25
Q

Which of the following is an example of physical change

A

Dissolving salt in water

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26
Q

Temperature is a measure of the average ________energy of the particles in The object

A

Kinetic

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27
Q

The heavy a particle the ________ it moves

A

Slower

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28
Q

The resistance of a fluid to flow is referred to

A

ViSCOSIty

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29
Q

Which state of matter will hold it’s shape without a container

A

Solid

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30
Q

The change of a substance from a solid directly to a gas is called

A

Sublimation

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31
Q

Evaporation refers to the change of state from a

A

Liquid to a gas

32
Q

The law of conservation of mass states that mass cannot be

A

Created or destroyed

33
Q

Ice floats in water because it is

A

Less dense than water

34
Q

Boyle’s Law relates the pressure of a gas to its

A

Volume

35
Q

Buoyant Force is the _____ force exerted on an object immersed or floating on a liquid

A

Upward

36
Q

According to the kinetic theory of matter which of the following statements is true about matter

A

The Adams in molecules of a substance are always in motion The higher the temperature of a substance the best of the particles move more massive particles move more slowly than less massive

37
Q

Unlike a gas a plasma

A

Conducts electric currents

38
Q

Atoms have no electric charge because they

A

Have an equal number of electrons and protons

39
Q

Violence electrons determine and Atom’s

A

Chemical properties

40
Q

A subatomic particle that has negative charge is an

A

Electron

41
Q

What is an Atom’s nucleus made of

A

Protons and neutrons

42
Q

Iron Atom has an atomic mass of 56 it’s atomic number is 26 how many neutrons does the iron Atom have

A

30

43
Q

An element atomic number is equal to its number of

A

Protons

44
Q

Two different isotopes of an element have different

A

Numbers of neutrons

45
Q

A sodium Atom which has 11 electrons has_______ electrons in its third energy level

A

One

46
Q

Oxygen’s atomic number is eight that means an oxygen Atom has

A

Eight protons in it’s nucleus

47
Q

The order of elements in the periodic table is based on

A

The electric charge of the nucleus

48
Q

Atoms of elements that are in the same group have the same number of

A

Valence electrons

49
Q

Carbon and other nonmetals are found in which area of the periodic table

A

On the right side

50
Q

As you move from left to right across the periodic table elements

A

Become less metallic

51
Q

What is Mendeleev is known for

A

Publishing the first periodic table

52
Q

Adams that Gain or lose electrons are called

A

Ions

53
Q

Ionization refers to the process of

A

Losing or gaining electrons

54
Q

Metals tend to be

A

Good conductors of heat

55
Q

Which is not a family of the periodic table

A

An outermost energy level that is full of electrons

56
Q

Bonds that holds Atoms together behave most like

A

Flexible springs

57
Q

An ionic bond is a bond that forms between

A

Ions with opposite charges

58
Q

In which type of bonding atoms share electrons

A

Covalent bonds

59
Q

Nickel combines with fluorine to form nickel (3) fluoride the charge of the nickel ion is

A

N3+

60
Q

A Carbon Atom can bond with four other added because it has

A

Four valence electrons

61
Q

Which compounds have Carbon carbon double bonds

A

Alkenes

62
Q

Which of the following models can be used to compare the sizes of Atoms in a molecule

A

Space-filling

63
Q

An ionic compound of calcium and chlorine would be named

A

Calcium chloride

64
Q

Will be in on time Panamint of one sulfur and two oxygen Atoms would be named

A

Sulfur dioxide

65
Q

All organic compounds must contain the element

A

Carbon

66
Q

Ethene differs from ethane in that is has a

A

Double bond

67
Q

Alcohol must contain an

A

-OH Group

68
Q

Covalent bonds are formed between

A

Nonmetal Atoms

69
Q

All of the following factors may speed up a chemical reaction except

A

Smaller surface area

70
Q

A substance that is formed in a chemical reaction is called the

A

Product

71
Q

The following occurs in a endothermic action but not in a exothermic action

A

Energy is absorbed

72
Q

A type of reaction the products an increase in temperature is

A

Exothermic

73
Q

In a balanced chemical equation the mass of the week reactants is equal to the

A

Mass of the products

74
Q

What coefficient is missing in C2H4 +(?)O2–>2CO2 + 2H20

A

3

75
Q

Which of the following represents a double displacement reaction between sodium chloride and so silver fluoride

A

NaCl+AgF–>NaF+AgCl

76
Q

As synthesis reaction between magnesium(Mg) and oxygen(O2) may produce

A

MgO

77
Q

A substance that undergoes a change in a chemical reaction is

A

A reactant

Physical Science Honors (1 decks)

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