Rocketry & Solar System Flashcards

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1
Q

What is Action?

A

Opposite reaction

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2
Q

What activity demonstrated this statement (action/opposite reaction)?

A

Balloons on the fishing line.

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3
Q

What is more mass?

A

More force.

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4
Q

What activity demonstrated this statement (more force/more mass)?

A

Air/Water fueled soda rocket.

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5
Q

Still?

A

Stays still

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6
Q

Moving?

A

Stays moving.

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7
Q

What activity demonstrated this statement (still - stays still/ moving - stays moving)?

A

Rock and cup experiment.

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8
Q

Who developed the first liquid fuel rocket?

A

Robert Goddard

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9
Q

What advantage do liquid fuel rocket engines have?

A

Controllable

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10
Q

What causes the thrust or push in rocket engines?

A

Rapidly expanding gases in combustion chamber push down.

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11
Q

Spies from which country stole liquid-fuel rocket designs from our scientist?

A

Germany

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12
Q

Why did this country steal these liquid-fuel rocket designs?

A

To develop a missile to bomb England and the United States.

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13
Q

After World War II, which country became interested in the scientists who stole the liquid-fuel rocket designs from our scientist?

A

Soviet Union (Russia)

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14
Q

What did this country (Russia) do in 1957 that shocked the United States?

A

Sent up first satellite into space (sputnick)

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15
Q

What did sputnick cause the United States to do?

A

Take space exploration more seriously.

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16
Q

Why was the United States so far behind Russia with space exploration?

A

The United States did not rocket research from 1945 to 1958.

17
Q

Who was the first man sent into space?

A

Yuri Gagarin

18
Q

Who was the first American sent into space?

A

Alan Shepard.

19
Q

What NASA mission carried one man into orbit?

A

Mercury

20
Q

What NASA mission allowed the United States to send two men into space to practice docking and space walks?

A

Gemini.

21
Q

What NASA mission allowed the United States to send three men on trip to the moon?

A

Apollo

22
Q

What NASA mission allowed the United States to use a spacecraft many times in order to carry supplies and equipment into orbit?

A

The Space Shuttle

23
Q

Why are rockets staged?

A

To allow the rocket to drop a portion when its fuel supply is used up.

24
Q

What two forces work together to allow a satellite to orbit?

A

Inertia and gravity

25
Q

What is a planet?

A

A large spherical body that orbits the sun.

26
Q

What is a moon?

A

A large spherical body that orbits a planet.

27
Q

What is an asteroid?

A

A small chunk of matter that orbits the sun or a planet.

28
Q

What planets are in our solar system from the sun outward?

A

Mercury/Venus/Earth/Mars/Jupiter/Saturn/Uranus/Neptune/Pluto (this planet is disputed).

29
Q

What plants are terrestrial?

A

Mercury/Venus/Earth/Mars/Pluto

30
Q

What planets are gaseous?

A

Jupiter/Saturn/Uranus/Neptune

31
Q

What is wrong about most solar system diagrams?

A

They can not possibly show both the relative size and distance.

32
Q

What might be an appropriate response to the enormity of the universe?

A

“How Great Thou Art”

33
Q

What do we call the different ‘faces’ of the moon?

A

Phases

34
Q

What causes these different ‘faces’?

A

The changing amount of illuminated surface that we can see from earth based on its position.

35
Q

How long does it take the moon to revolve around the earth?

A

About a month (‘moonth’)

36
Q

What chance is there that our moon would just happen to rotate and revolve at the same rate as that we always see exactly the same side century after century?

A

Very little

37
Q

What does this ‘chance’ for the moon rotating and revolving suggest to you?

A

God is great and very much in control of His creation.

38
Q

What English scientist developed statements that defined motion?

A

Sir Isaac Newton