Astronomy week 3

Last updated 8 months ago

15 questions

1

N.Q.1

2

DCI.PS2.B.6-8.2

3

1

Library

Astronomy week 3

Last updated 8 months ago

15 questions

1

Consider a comet, with a far more eccentric orbit than a planet like earth. Can you explain in terms of Kepler's law why the comet must move much slower when it is at the outer edge of the solar system than when it is close to the earth?

1

Consider a comet, with a far more eccentric orbit than a planet like earth. Can you explain in terms of Newton's law of universal gravitation why the comet must move much slower when it is at the outer edge of the solar system than when it is close to the earth?

1

N.Q.1

2

DCI.PS2.B.6-8.2

3

1

explain the effect Saturn and Jupiter have on Earth's orbit that affects the Milankovich cycles?

1

From watching that video, what insights do you glean about global warming?

The following is the simple explanation of tidal forces, and gives some of the basics. 

1

The moon pulls on the close side of the earth, why does that create a bulge that becomes high tide on the far side of the earth?

1

You are falling feet first into a black hole, and you start to be spaghettified. What is spaghettification, and what is happening to you?

The following is a video that explains why the last video we watched is wrong. Not super wrong, mind you, more "einstein proved Newton wrong about gravity" kind of wrong. Just wrong enough that it leaves a lot of really basic questions unanswered like if this is true, "why don't we have tides in lakes". The answer has to do with strength of vectors. 

1

You and a brother are in a moving car. You pass a friend standing still on the street. From your frame of reference, you are your brother are stationary, and your friend is moving. From your friend's frame of reference, you are both moving along the street. Your brother lunges across the seat to steal your candy. Draw a quick sketch that compares the motion from your frame of reference compared to your friend's frame of reference.

1

This guy says that while everything else the first guy said is true, the actual force involved is tiny. Can you summarize how he explains how those tiny forces can cause large tides?

Which of the following statements are implied by Kepler's laws?

A planet moves faster in its orbit when it is farthest from the sun

planets far from the sun take longer to complete their orbits than planets closer to the sun

All the planets orbits lie in the same plane

All the planets orbits are perfect circles

Consider a comet, with a far more eccentric orbit than a planet like earth. Can you explain in terms of Kepler's law why the comet must move much slower when it is at the outer edge of the solar system than when it is close to the earth?

Consider a comet, with a far more eccentric orbit than a planet like earth. Can you explain in terms of Newton's law of universal gravitation why the comet must move much slower when it is at the outer edge of the solar system than when it is close to the earth?

Which one of the following is used as the unit for eccentricity?

A cm

B km

C no units

D m

Which of the following eccentricity values is the closest to being a circle?

A 0.206

B 0.604

C 0.009

D 0.054

milankovich's cycles are based on which of the following variables, check all that apply.

The change in the angle of the tilt of the earths axis

the change in the orientation of the earth's magnetosphere

the change in the plane of earth's orbit around the sun

the change in the direction of Earth's tilt

the change in the orientation of the sun's magnetosphere

the change in the eccentricity of the earth's orbit

ice forms more readily on land than on water

True

False

ice is more likely to form on ice than on land

True

False

explain the effect Saturn and Jupiter have on Earth's orbit that affects the Milankovich cycles?

From watching that video, what insights do you glean about global warming?

The following is the simple explanation of tidal forces, and gives some of the basics. 

The moon pulls on the close side of the earth, why does that create a bulge that becomes high tide on the far side of the earth?

tidal locking is

When the earth turns through the tidal bulge to have two high tides and two low tides per day

when the sun lines up with the moon to create larger than normal tides

when the moon bulges because of tidal forces from the earth

when the moon slows down to have one rotation around its axis for each one rotation around the earth

You are falling feet first into a black hole, and you start to be spaghettified. What is spaghettification, and what is happening to you?

The following is a video that explains why the last video we watched is wrong. Not super wrong, mind you, more "einstein proved Newton wrong about gravity" kind of wrong. Just wrong enough that it leaves a lot of really basic questions unanswered like if this is true, "why don't we have tides in lakes". The answer has to do with strength of vectors. 

You and a brother are in a moving car. You pass a friend standing still on the street. From your frame of reference, you are your brother are stationary, and your friend is moving. From your friend's frame of reference, you are both moving along the street. Your brother lunges across the seat to steal your candy. Draw a quick sketch that compares the motion from your frame of reference compared to your friend's frame of reference.

This guy says that while everything else the first guy said is true, the actual force involved is tiny. Can you summarize how he explains how those tiny forces can cause large tides?

Which of the following statements are implied by Kepler's laws?

A planet moves faster in its orbit when it is farthest from the sun

planets far from the sun take longer to complete their orbits than planets closer to the sun

All the planets orbits lie in the same plane

All the planets orbits are perfect circles

Which one of the following is used as the unit for eccentricity?

A cm

B km

C no units

D m

Which of the following eccentricity values is the closest to being a circle?

A 0.206

B 0.604

C 0.009

D 0.054

milankovich's cycles are based on which of the following variables, check all that apply.

The change in the angle of the tilt of the earths axis

the change in the orientation of the earth's magnetosphere

the change in the plane of earth's orbit around the sun

the change in the direction of Earth's tilt

the change in the orientation of the sun's magnetosphere

the change in the eccentricity of the earth's orbit

ice forms more readily on land than on water

True

False

ice is more likely to form on ice than on land

True

False

tidal locking is 

When the earth turns through the tidal bulge to have two high tides and two low tides per day

when the sun lines up with the moon to create larger than normal tides

when the moon bulges because of tidal forces from the earth

when the moon slows down to have one rotation around its axis for each one rotation around the earth