s1w5 Astronomy FC - Inverse square law, Layers of earth, magnetosphere - Gwyneth Lenfest | Library

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To fill out a discussion from class: Hollow earth Do you have any questions?

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why would digging a hole from pole to pole help you fall through the earth, rather than starting your dig in Austin? Alternative question - what is the coriolis effect? (note: don't just answer the first question with "the coriolois effect". explain what it is.)

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At some point in our reading we came across the equation for the universal force of gravity
Where F_g is the force of gravity, G is a constant number, m_1 and m_2 are the masses of the two objects and r is the distance between the two objects. So, thinking through the discussion of proportionality in class, is the relationship between the distance and the force of gravity

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The above is why they said you would float freely if you were inside a hollow sphere.
"BUT! " you say, "the distance is a inverse square law thing! the distance should matter more than the mass!"
Thats true, but the amount of the sphere on the other side follows the exact same law, which is why the forces from those two sections cancel out perfectly.

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Imagine you are inside the hollow sphere, shining a flashlight on a section of the sphere. The closer you are to that section of the sphere,

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Go try this with a flashlight on a wall to check your answer

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This wasn't covered in the video, just linking to knowledge you may or may not have - match the layers of the earth to what they are made of

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Magentic striping
Do you have any questions?

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The video mentions one area of the seafloor that is spreading. what are some places on the earth that you think the plates are moving away from each other (and creating new ocean floor between them)?

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Where are some sections of earth that you think the plates are running into each other?

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Why does the polarity of the ocean floor keep flipping?

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📖 Read 5.6-5.7, pages 169-175

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🔎 The Coriolis effect is responsible for

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🔎 Solar particles heading towards the earth are prevented from hitting the surface by the

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If the earth rotated more slowly, what effect would this have on the Earth's magnetic field?

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Precession means

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Why is the inner core solid, even though it is hotter than the outer core?

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If you calculate the amount of gravity the earth applies to the international space station, If the mass of the ISS is 419,725 kg, the mass of the earth is 5.9736 x 10^24 kg, The radius of the earth is 6,378.1km and the ISS orbits at 408 km. How many significant figures would you have to use?

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the difference between directly proportional and inversely proportional
the difference between proportional and proportional to the square
why falling through a hole right through the earth would work the way the video explained.
why falling through a hole right through the earth would in reality kill you way faster than the video claimed.
the layers of the earth
plate tectonics
What is the magnetosphere
why the polarity of the earth flips back and forth on the sea floor
what causes the magnetosphere
how the magnetosphere helps

I've got this
I'm fuzzy
so confused

	A	B	C	D	E
Solid rock
Solid-ish rock, more like fudge in consistancy
solid iron
liquid iron
solid rock, but broken into lots of smaller pieces

s1w5 Astronomy FC - Inverse square law, Layers of earth, magnetosphere

To fill out a discussion from class: Hollow earth Do you have any questions?

why would digging a hole from pole to pole help you fall through the earth, rather than starting your dig in Austin? Alternative question - what is the coriolis effect? (note: don't just answer the first question with "the coriolois effect". explain what it is.)

Imagine you are inside the hollow sphere, shining a flashlight on a section of the sphere. The closer you are to that section of the sphere,

Go try this with a flashlight on a wall to check your answer

This wasn't covered in the video, just linking to knowledge you may or may not have - match the layers of the earth to what they are made of

Magentic striping Do you have any questions?

The video mentions one area of the seafloor that is spreading. what are some places on the earth that you think the plates are moving away from each other (and creating new ocean floor between them)?

Where are some sections of earth that you think the plates are running into each other?

Why does the polarity of the ocean floor keep flipping?

📖 Read 5.6-5.7, pages 169-175

🔎 The Coriolis effect is responsible for

🔎 Solar particles heading towards the earth are prevented from hitting the surface by the

If the earth rotated more slowly, what effect would this have on the Earth's magnetic field?

Precession means

Why is the inner core solid, even though it is hotter than the outer core?

If you calculate the amount of gravity the earth applies to the international space station, If the mass of the ISS is 419,725 kg, the mass of the earth is 5.9736 x 10^24 kg, The radius of the earth is 6,378.1km and the ISS orbits at 408 km. How many significant figures would you have to use?

Magentic striping
Do you have any questions?