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Physical Science > Unit 2 Test Content > Flashcards

Unit 2 Test Content Flashcards

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Biology 101 flashcards
1
Q

Matter breaks down into … and …

A

substance and mixture

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2
Q

Substance breaks down into … and …

A

element and compound

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3
Q

Mixture breaks down into … and …

A

homogeneous mixture and heterogeneous mixture

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4
Q

can’t be separated into different kinds of matter by physical means

A

substance

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5
Q

can’t be broken down into simpler substances by chemical or physical means

A

element

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6
Q

contains two or more different elements chemically joined

A

compound

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7
Q

contains a combination of different elements and compounds and can be separated by physical means

A

mixture

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8
Q

a mixture that is the same throughout

A

homogeneous mixture (solution)

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9
Q

a mixture in which different samples are not necessarily made up of exactly the same proportions of matter

A

heterogeneous mixture (mixture)

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10
Q

examples of elements

A

pure gold and copper

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11
Q

examples of compounds

A

water (H2O) and salt (NaCI)

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12
Q

examples of homogeneous mixtures

A

salt water, coffee, soil

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13
Q

examples of heterogeneous mixtures

A

trail mix and fruit salad

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14
Q

a … curve goes up

A

heating

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15
Q

a … curve goes down

A

cooling

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16
Q

What’s the order in which a heating curve goes up?

A

1.) Solid
2.) Melting (PC)
3.) Liquid
4.) Boiling (PC)
5.) Gas

17
Q

What’s the order in which a cooling curve goes down?

A

1.) Gas
2.) Evaporation (PC)
3.) Liquid
4.) Freezing (PC)
5.) Solid

18
Q

solid to liquid

A

melting

19
Q

solid to gas

A

sublimation

20
Q

liquid to solid

A

freezing

21
Q

gas to liquid

A

condensation

22
Q

liquid to gas

A

evaporation

23
Q

occurs between 2 materials at different temperatures when they are in direct contact

A

conduction

24
Q

vertical movement of fluids due to temperature differences

A

convection

25
Q

energy transferred as heat in the form of electromagnetic

A

radiation

26
Q

materials that heat flows through easily

A

conductors

27
Q

materials that heat flows through poorly

A

insulators

28
Q

Q =

A

heat energy (J)

29
Q

m =

A

mass (g or kg)

30
Q

c =

A

specific heat (J/g°C or J/kg°C)

31
Q

△T =

A

change in temperature (°C)

32
Q

△T Equation

A

Tfinal - Tinitial

33
Q

Q Equation

A

m x c x △T

34
Q

m Equation

A

Q/ c△T

35
Q

c Equation

A

Q/ m△T

36
Q

△T Equation

A

Q/mc

Physical Science (3 decks)

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