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8th Grade Pysical Science > The First Final > Flashcards

The First Final Flashcards

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Biology 101 flashcards
1
Q

When was the Big Bang?

A

13.8 billion years ago

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2
Q

When did time start?

A

At the Big Bang

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3
Q

What is the Big Bang made of?

A

Pure energy

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4
Q

What is the Big Bang?

A

An explosion of energy that created everything and separated the 4 universal forces.

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5
Q

What is a Plank Second?

A

Ten to negative 43 power of a second

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6
Q

What is inflation?

A

Where matter keeps expanding after the Big Bang

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7
Q

What is the Higgs Field

A

A time frame in the Big Bang where quarks were made.

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8
Q

What is baryogenis

A

A war between matter and antimatter. Matter one.

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9
Q

Nucleosynthesis

A

When protons and neutrons were formed

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10
Q

What are the types of stars?

A

O B A F G K M

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11
Q

What type of star is the sun?

A

G

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12
Q

When was the earth made

A

4.6 billion years ago

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13
Q

Length unit

A

Meter

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14
Q

Mass unit

A

Kilogram

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15
Q

Volume unit

A

M cubed

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16
Q

Temp

A

Celcelus/ kelvin

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17
Q

Mill

A

1 thousandth

18
Q

Centi

A

One hundredth

19
Q

Deci

A

One tenth

20
Q

Deca

A

Ten

21
Q

Hecta

A

100

22
Q

Kilo

A

1000

23
Q

Freezing point in C

A

0

24
Q

Boiling point in C

A

100

25
Q

How do you get Kelvin from C

A

Add 273 to C

26
Q

Name the types of graphs

A

Line, bar, and pie

27
Q

How many variables are in a line graph, and which is independent?

A

2, X

28
Q

How many variables are in a bar graph?

A

1

29
Q

How fast do we fall

A

9.8 m/second squared

30
Q

How many quarks are in protons and neutrons?

A

3

31
Q

What are the quark charges in a proton?

A

2 positive (each charge is 2/3) 1 negative (-1/3)

32
Q

What is the neutron quark charge

A

2 negative, 1 positive

33
Q

What is the electron distribution?

A

2,8,18,32,32,18,8,2

34
Q

What is the valence level?

A

The outermost electron orbit

35
Q

What are the four universal forces?

A

Gravity, electromagnetic, weak, and strong.

36
Q

What is the electron cloud?

A

The area where the electrons are.

37
Q

How do you find neutrons?

A

Subtract the number of protons from the mass number of that atom.

38
Q

What is the atomic mass?

A

The decimal

39
Q

What is the mass number?

A

The whole number

40
Q

What are the helper particles for the four forces?

A

Strong - gluons
Weak - wisboson
EM - photon
Gravity - graviton

41
Q

What is plank time?

A

When the four universal forces were together.

8th Grade Pysical Science (3 decks)

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