{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

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Hollow earth
Do you have any questions?

1

why would digging a hole from pole to pole help you fall through the earth, rather than starting your dig in Austin?

1

Why would you be free floating as soon as you are in the center of earth?

1

in the hollow earth scenario, why would you be free floating when you are close to one side of the sphere,

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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,

The larger the section of the sphere is lit up, and the more intense the light is on that section

The smaller the section of the sphere is lit up, and the less intense the light is on that section

The larger the section of the sphere is lit up, and the less intense the light is on that section of the sphere

the smaller the section of the sphere is lit up and the more intense the light is on that section

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

ok

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Using the same math we used from the parallax lab, we can find the relationship between the linear size of the circle of light, the linear distance to the circle of light and the angular size of the circle of light. Which of the following shows that relationship?

r/d = cos α

r/d = tan α

r/d = sin α

r/d = cot α

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Using the equation you chose from above, solve for r and find the area of the circle of light.

A= 2 (dcos α)^2

A = (d tan α)^2

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Magentic striping
Do you have any questions

1

The video mentions one area of the seafloor that is spreading. what are some places on the earth that you think the plates are colliding?

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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

Jet streams

the bands of Jupiter

deflects ocean currents

all of the above

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

Aurora

magnetosphere

van allen belt

coriolis effect

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🔎 Those same solar particles get trapped in the _______, and are a significant barrier to astronauts leaving earth's orbit.

Aurora

magnetosphere

van allen belt

coriolis effect

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🎥. Solar storms Do you have any questions

1

🔗 What does CME stand for?

Center of mass energy

Composite magnetic emissions

Coronal mass ejections

None of these

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🤔 Why is it a sign of a problem when aurora borealis is seen too far south?

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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

Eventually the orbit will be stretched because of Jupiter and Saturn, and we will be even further away in the summer.

The angle of the earth's tilt will decrease, making the seasons less extreme

the angle of the earths tilt will increase making the seasons more extreme

The earth will be closer to the sun in summer (in the northern Hemisphere) and farther in the winter, making both seasons more extreme.

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

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(emoji signals calculation) A p-wave has a constant velocity of 18,000 miles/hour. Convert this to km/s

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A vector is described as 25 N, 43.0° from the horizontal. Break those down into two component vectors, A+B, where A is in the x direction, and B is in the y direction. Quick refresher how to do this here. http://www.phys.uwosh.edu/rioux/physlets/morephyslets/kinematics_6.html

A = 18.28 in the x direction, B = 17.05 in the y direction

A = 18 in the x direction, B = 17 in the y direction

A = 17.0 in the x direction, B=18.3 in the y direction

A = 17.05 in the x direction, B=18.28 in the y direction

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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. Pay attention to units and significant figures, the Gravitational constant G = 6.674×10−11 m3⋅kg−1⋅s−2.

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Calculate the amount of gravity the earth would apply to the ISS if it were on the ground.

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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 acceleration due to gravity on the surface of the earth is about 9.8 m/s^2. The acceleration due to gravity on the ISS is about 8.7 m/s^2. Why does all the footage of the ISS look like there is no gravity?

1

How are you feeling about

gravity inside a solid body
inverse square law for light and gravity
plate tectonics, specifically divergent plates
how to calculate the force of gravity
why the sea floor is magnetized
why the sea floor flips from being north south to south north in stripes along the sea floor
what is the earth's magnetic field
what causes the earth's magnetic field

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

	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

unfinished Astronomy s1 w5 flipped classroom - What if week

unfinished Astronomy s1 w5 flipped classroom - What if week

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?

Why would you be free floating as soon as you are in the center of earth?

in the hollow earth scenario, why would you be free floating when you are close to one side of the sphere,

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

Using the same math we used from the parallax lab, we can find the relationship between the linear size of the circle of light, the linear distance to the circle of light and the angular size of the circle of light. Which of the following shows that relationship?

Using the equation you chose from above, solve for r and find the area of the circle of light.

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 colliding?

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

🔎 Those same solar particles get trapped in the _______, and are a significant barrier to astronauts leaving earth's orbit.

🎥. Solar storms Do you have any questions

🔗 What does CME stand for?

🤔 Why is it a sign of a problem when aurora borealis is seen too far south?

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?

(emoji signals calculation) A p-wave has a constant velocity of 18,000 miles/hour. Convert this to km/s

A vector is described as 25 N, 43.0° from the horizontal. Break those down into two component vectors, A+B, where A is in the x direction, and B is in the y direction. Quick refresher how to do this here. http://www.phys.uwosh.edu/rioux/physlets/morephyslets/kinematics_6.html

Calculate the amount of gravity the earth would apply to the ISS if it were on the ground.

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?

The acceleration due to gravity on the surface of the earth is about 9.8 m/s^2. The acceleration due to gravity on the ISS is about 8.7 m/s^2. Why does all the footage of the ISS look like there is no gravity?

How are you feeling about

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?

Why would you be free floating as soon as you are in the center of earth?

in the hollow earth scenario, why would you be free floating when you are close to one side of the sphere,

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

Using the same math we used from the parallax lab, we can find the relationship between the linear size of the circle of light, the linear distance to the circle of light and the angular size of the circle of light. Which of the following shows that relationship?

Using the equation you chose from above, solve for r and find the area of the circle of light.

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 colliding?

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

🔎 Those same solar particles get trapped in the _______, and are a significant barrier to astronauts leaving earth's orbit.

🎥. Solar storms Do you have any questions

🔗 What does CME stand for?

🤔 Why is it a sign of a problem when aurora borealis is seen too far south?

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?

(emoji signals calculation) A p-wave has a constant velocity of 18,000 miles/hour. Convert this to km/s

A vector is described as 25 N, 43.0° from the horizontal. Break those down into two component vectors, A+B, where A is in the x direction, and B is in the y direction. Quick refresher how to do this here. http://www.phys.uwosh.edu/rioux/physlets/morephyslets/kinematics_6.html

Calculate the amount of gravity the earth would apply to the ISS if it were on the ground.

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?

The acceleration due to gravity on the surface of the earth is about 9.8 m/s^2. The acceleration due to gravity on the ISS is about 8.7 m/s^2. Why does all the footage of the ISS look like there is no gravity?

How are you feeling about

Hollow earth
Do you have any questions?

Magentic striping
Do you have any questions

Hollow earth
Do you have any questions?

Magentic striping
Do you have any questions