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Science Final > True Or False > Flashcards

True Or False Flashcards

0
Q

Like charges attract each other and unlike charges repel each other

A

False

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1
Q

Aristotle believed that there was a limit to how many times matter could be divided

A

False

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2
Q

JJ Thomson experiment provided the first evidence for the existence of sub atomic particles

A

True

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3
Q

Also particles are extremely small fast negatively charged particles

A

False

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4
Q

The Greek philosopher Democritus chose what word to describe a tiny piece of matter that cannot be divided

A

Atom

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5
Q

Aristotle thought that matter

A

Could not be divided

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6
Q

Which Greek scientist believe that materials could be divided forever with no smallest piece

A

Aristotle

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7
Q

Democritus thought that matter was made of tiny particles

A

That’s could be divided

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8
Q

Democritus atomic model included particles with different

A

Shapes

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9
Q

Which of the following is not part of John Dalton’s atomic theory

A

Atoms contain a nucleus

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10
Q

Which of the following statements is not a conclusion of Dalton

A

Atoms of different elements have different colors

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11
Q

A 10 molecule sample of Al2O3 contains

A

20 aluminum atoms and 30 oxygen atoms

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12
Q

A 16 molecule sample of H2O contains

A

32 hydrogen atoms and 16 oxygen atoms

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13
Q

Which of the following most accurately represents JJ Thompson’s model of the Atom

A

Saulet positively charged sphere with evenly spaced electrons throughout

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14
Q

Rutherfords foil experiment what’s caused some of the alpha particles to bind straight back from the gold foil

A

Electrons in the gold atoms

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15
Q

Who provided evidence for the existence of a nucleus in an atom

A

JJ Thomson

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16
Q

What did JJ Thomson Discover

A

The electron

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17
Q

What did Ernest Rutherford discover

A

The nucleus

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18
Q

Rutherfords foil experiment indicated that the center of the Adam contains a

A

Balanced charges

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19
Q

Atoms of one element are exactly the same as atoms of any other element

A

False

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20
Q

Regardless of the element that they come from all protons are at denticle all electrons are identical and all neutrons are identical

A

True

21
Q

Different elements have different amounts of subatomic particles in there atoms

A

True

22
Q

The number of neutrons the nucleus contains determines the type of element it is

A

False

23
Q

Which subatomic particle has a negative charge

A

Electron

24
Q

Which subatomic particle has a positive charge

A

Proton

25
Q

Which subatomic particle has a neutral charge

A

Neutron

26
Q

What is found in the nucleus of the atoms

A

Protons and neutrons

27
Q

Which has the same mass

A

Protons and neutrons

28
Q

Which subatomic particle has the lowest mass

A

Electrons

29
Q

Niels Bohr was most interested in studying

A

Electrons and their energy levels

30
Q

What is the difference between an atom in the ground state and the atom in an excited state

A

That atoms in the ground state has more energy and is less stable

31
Q

Antoine Lavoisie attempted to group elements into which categories

A

Metals nonmetals gases and earths

32
Q

In the periodic table is set of properties repeats from

A

Row to row

33
Q

Mendeleev organized elements and his periodic table in order of increasing

A

Atomic mass

34
Q

Regular patterns found in the periodic table are known as periodic

A

Trends

35
Q

Moving from left to right of the periodic table which of the following values increases from element to element

A

Atomic mass

36
Q

Row is a

A

Period

37
Q

Column is a

A

Group

38
Q

At room temperature and none of them and metals are

A

Gases

39
Q

At room temperature most of the elements in the periodic table are

A

Solid naturally occurring metals

40
Q

Work is a transfer of

A

Energy

41
Q

Energy is defined as the

A

Ability to do work

42
Q

All energy can be divided into which two major categories

A

Kinetic energy and potential energy

43
Q

The energy of motion is called

A

Kinetic energy

44
Q

Kinetic energy in the moving object can be increased by the objects

A

Mass or velocity or both

45
Q

Another word for renewable is

A

Replaceable

46
Q

First step in natural convection

A

Thermal energy inputs

47
Q

Second step in natural convection

A

Thermal expansion

48
Q

Third step in natural convection

A

Density decrease

49
Q

Fourth step in natural convection

A

Flotation

Science Final (2 decks)

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