S2w3 Starting about telescopes

Last updated 8 months ago

21 questions

1

Library

S2w3 Starting about telescopes

Last updated 8 months ago

21 questions

1

If something emits a continuous spectrum, what does that mean?

1

Why, if a sun emits a continuous spectrum do we record it as an absorption spectrum from earth?

1

explain the sugared up toddler analogy from class.

1

Read 4.1 - pages120-128. Be sure to read the "extending our reach" section. Do you have any questions?

1

how, apart from magnification, do binoculars help you see better?

1

Considering this information about telescopes, what affect does light pollution have on astronomers. How does light from the ground get mixed up with light coming from the stars, even on a clear night?

1

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the top.

1

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the side. It should be different, explain why.

1

An incandescent lightbulb is a blackbody radiator. It is heated and 10% of the energy that goes through the filament is radiated as light, where the rest is radiated as heat. LED's are different. 80% of that electricity is converted to light. Do you think you can explain how LED's work? (you don't need to do research. if you know, tell, if you don't, say so.)

1

Light, refraction and color do you have any questions?
ARGH!!!! I WAS WRONG IS CLASS. Cyan magenta and yellow are the primary colors for subtractive pigments, not light. sadness.
do you have any other questions?

1

Why does your brain expect something underwater to be in a place where it is not?

1

You have produced a powerful, high tech, no refraction, no nothing, simple point and shoot instantaneous transporter. You carefully aim it at mars and transport you best friend. who then materialized a fair way into space far from mars. Why?

If something emits a continuous spectrum, what does that mean?

Why, if a sun emits a continuous spectrum do we record it as an absorption spectrum from earth?

The analogy - light is like the Flash, he always runs at avery specific speed, but he will stop and shake hands with all the people in his path. The people represent atoms in the path of the light. Thinking through this analogy, check all the boxes that are true

Light always travels at the speed of light no matter what medium it is moving through

light takes longer to go through some mediums than others

The speed of light changes for some mediums

Increasing the density of an object decreases the speed of light

increasing the density of an object does not decrease the speed of light, but it does take the light longer to get through.

the average speed of light across a vaccum is the speed of light.

even if light always travels at the speed of light, it can have a lower average speed.

explain the sugared up toddler analogy from class.

What determines how much energy an electron has?

The type of atom the electron is part of

Which of that atom's specific orbitals the electron is part of

Both of the above

None of the above

Read 4.1 - pages120-128. Be sure to read the "extending our reach" section. Do you have any questions?

how, apart from magnification, do binoculars help you see better?

Telescope A's mirror has three times the diameter of telescope B, how much greater is A's light gathering power?

a telescopes resolving power measures its ability to see

Considering this information about telescopes, what affect does light pollution have on astronomers. How does light from the ground get mixed up with light coming from the stars, even on a clear night?

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the top.

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the side. It should be different, explain why.

An incandescent lightbulb is a blackbody radiator. It is heated and 10% of the energy that goes through the filament is radiated as light, where the rest is radiated as heat. LED's are different. 80% of that electricity is converted to light. Do you think you can explain how LED's work? (you don't need to do research. if you know, tell, if you don't, say so.)

Below is a schematic of a LED light. Notice that you have two different alloys on either side of the gap. One side has lots of extra electrons, one side has a lot of missing electrons. Which of the following do you think is happening here?

The electrons moving through heat up the material, which glows and gives off heat and light

The electrons move from a higher energy orbital to a lower energy orbital and the difference in energy is released as heat and light

the electrons are building up and jumping across ionizing the air as they pass, which creates light

Its magic. Alien magic.

Light, refraction and color do you have any questions?
ARGH!!!! I WAS WRONG IS CLASS. Cyan magenta and yellow are the primary colors for subtractive pigments, not light. sadness.
do you have any other questions?

When mixing paint, do those rules follow additive color or subtractive color?

Additive - primary colors blue, green and red

Subtractive - primary colors yellow, cyan and magenta

When light hits a mirror, what determines what angle the light reflects off that mirror? select all that apply.

angle of incidence - the angle from how the light hits the surface to the line normal to the surface

the wavelength of the light - the distance from crest to crest of the wave of light, this also tells you the color of the light

The material of the mirror - what the mirror is made of

the medium of incidence - the material the light was passing through before it hit the mirror.

When light hits a another transparent medium, what determines what angle the light refracts through that medium? select all that apply.

angle of incidence - the angle from how the light hits the surface to the line normal to the surface

the wavelength of the light - the distance from crest to crest of the wave of light, this also tells you the color of the light

The material of the new medium - what the medium the light is entering is made of

the medium of incidence - the material the light was passing through before it hit the mirror.

I promise I understand that whenever someone in a video talks about the lower speed of light in a medium, I understand that it is the average speed through the medium, not the speed the light is moving at any given point, because that is always the same.

yes

No, I hate this. why.

Why does your brain expect something underwater to be in a place where it is not?

You have produced a powerful, high tech, no refraction, no nothing, simple point and shoot instantaneous transporter. You carefully aim it at mars and transport you best friend. who then materialized a fair way into space far from mars. Why?

The analogy - light is like the Flash, he always runs at avery specific speed, but he will stop and shake hands with all the people in his path. The people represent atoms in the path of the light. Thinking through this analogy, check all the boxes that are true

Light always travels at the speed of light no matter what medium it is moving through

light takes longer to go through some mediums than others

The speed of light changes for some mediums

Increasing the density of an object decreases the speed of light

increasing the density of an object does not decrease the speed of light, but it does take the light longer to get through.

the average speed of light across a vaccum is the speed of light.

even if light always travels at the speed of light, it can have a lower average speed.

What determines how much energy an electron has?

The type of atom the electron is part of

Which of that atom's specific orbitals the electron is part of

Both of the above

None of the above

Telescope A's mirror has three times the diameter of telescope B, how much greater is A's light gathering power?

3 times

6 times

8 times

9 times

27 times

a telescopes resolving power measures its ability to see

Fainter sources

more distant sources

finer details in sources

larger sources

more rapidly moving sources

Below is a schematic of a LED light. Notice that you have two different alloys on either side of the gap. One side has lots of extra electrons, one side has a lot of missing electrons. Which of the following do you think is happening here?

The electrons moving through heat up the material, which glows and gives off heat and light

The electrons move from a higher energy orbital to a lower energy orbital and the difference in energy is released as heat and light

the electrons are building up and jumping across ionizing the air as they pass, which creates light

Its magic. Alien magic.

When mixing paint, do those rules follow additive color or subtractive color?

Additive - primary colors blue, green and red

Subtractive - primary colors yellow, cyan and magenta

When light hits a mirror, what determines what angle the light reflects off that mirror? select all that apply.

angle of incidence - the angle from how the light hits the surface to the line normal to the surface

the wavelength of the light - the distance from crest to crest of the wave of light, this also tells you the color of the light

The material of the mirror - what the mirror is made of

the medium of incidence - the material the light was passing through before it hit the mirror.

When light hits a another transparent medium, what determines what angle the light refracts through that medium? select all that apply.

angle of incidence - the angle from how the light hits the surface to the line normal to the surface

the wavelength of the light - the distance from crest to crest of the wave of light, this also tells you the color of the light

The material of the new medium - what the medium the light is entering is made of

the medium of incidence - the material the light was passing through before it hit the mirror.

I promise I understand that whenever someone in a video talks about the lower speed of light in a medium, I understand that it is the average speed through the medium, not the speed the light is moving at any given point, because that is always the same.

yes

No, I hate this. why.

S2w3 Starting about telescopes

S2w3 Starting about telescopes

If something emits a continuous spectrum, what does that mean?

Why, if a sun emits a continuous spectrum do we record it as an absorption spectrum from earth?

explain the sugared up toddler analogy from class.

Read 4.1 - pages120-128. Be sure to read the "extending our reach" section. Do you have any questions?

how, apart from magnification, do binoculars help you see better?

Considering this information about telescopes, what affect does light pollution have on astronomers. How does light from the ground get mixed up with light coming from the stars, even on a clear night?

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the top.

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the side. It should be different, explain why.

Light, refraction and color do you have any questions?ARGH!!!! I WAS WRONG IS CLASS. Cyan magenta and yellow are the primary colors for subtractive pigments, not light. sadness. do you have any other questions?

Why does your brain expect something underwater to be in a place where it is not?

You have produced a powerful, high tech, no refraction, no nothing, simple point and shoot instantaneous transporter. You carefully aim it at mars and transport you best friend. who then materialized a fair way into space far from mars. Why?

If something emits a continuous spectrum, what does that mean?

Why, if a sun emits a continuous spectrum do we record it as an absorption spectrum from earth?

The analogy - light is like the Flash, he always runs at avery specific speed, but he will stop and shake hands with all the people in his path. The people represent atoms in the path of the light. Thinking through this analogy, check all the boxes that are true

explain the sugared up toddler analogy from class.

What determines how much energy an electron has?

Read 4.1 - pages120-128. Be sure to read the "extending our reach" section. Do you have any questions?

how, apart from magnification, do binoculars help you see better?

Telescope A's mirror has three times the diameter of telescope B, how much greater is A's light gathering power?

a telescopes resolving power measures its ability to see

Considering this information about telescopes, what affect does light pollution have on astronomers. How does light from the ground get mixed up with light coming from the stars, even on a clear night?

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the top.

Got find a glass of water and put a spoon in the glass. Try to use as clear and smooth a glass as possible. describe what the spoon looks like from the side. It should be different, explain why.

Below is a schematic of a LED light. Notice that you have two different alloys on either side of the gap. One side has lots of extra electrons, one side has a lot of missing electrons. Which of the following do you think is happening here?

Light, refraction and color do you have any questions?ARGH!!!! I WAS WRONG IS CLASS. Cyan magenta and yellow are the primary colors for subtractive pigments, not light. sadness. do you have any other questions?

When mixing paint, do those rules follow additive color or subtractive color?

When light hits a mirror, what determines what angle the light reflects off that mirror? select all that apply.

When light hits a another transparent medium, what determines what angle the light refracts through that medium? select all that apply.

I promise I understand that whenever someone in a video talks about the lower speed of light in a medium, I understand that it is the average speed through the medium, not the speed the light is moving at any given point, because that is always the same.

Why does your brain expect something underwater to be in a place where it is not?

You have produced a powerful, high tech, no refraction, no nothing, simple point and shoot instantaneous transporter. You carefully aim it at mars and transport you best friend. who then materialized a fair way into space far from mars. Why?

Light, refraction and color do you have any questions?
ARGH!!!! I WAS WRONG IS CLASS. Cyan magenta and yellow are the primary colors for subtractive pigments, not light. sadness.
do you have any other questions?

Light, refraction and color do you have any questions?
ARGH!!!! I WAS WRONG IS CLASS. Cyan magenta and yellow are the primary colors for subtractive pigments, not light. sadness.
do you have any other questions?