s2w2 Doppler shifts, scattering, reflecting, and transparency

Last updated 8 months ago

23 questions

1

Library

s2w2 Doppler shifts, scattering, reflecting, and transparency

Last updated 8 months ago

23 questions

1

Review q - How can you tell what kind of gas is emitting light?

1

review q - Given that water absorbs microwaves very strongly, explain why the inside of a poptart gets significantly hotter than the crust around it?

1

What is the difference between emission and absorption in terms of what happens to an electron in an atom?

1

Watch about Rayleigh scattering do you have any questions?

1

Read 3.6-3.7 - do you have any questions?

1

Think about how an ambulance sounds when it is sitting still. Then think about how different the ambulance sounds when it passes by. (you can listen to it here) how would describe the difference

1

What does the atmospheric window refer to?

1

in what way is the atmospheric window very good for us?

1

In what way is the atmospheric window bad for astronomers

1

What is the astronomers solution to this problem?

1

Watch this video about why glass is transparent.
Do you have any questions?

1

What do you think this means about glass, transparency and UV radiation?

1

What do you think happens to the energy of the light that is absorbed and not reflected or transmitted by a solid?

1

Review q - How can you tell what kind of gas is emitting light?

review q - Given that water absorbs microwaves very strongly, explain why the inside of a poptart gets significantly hotter than the crust around it?

What is the difference between emission and absorption in terms of what happens to an electron in an atom?

Watch about Rayleigh scattering do you have any questions?

Light is created by

molecules spinning

molecules wiggling

molecules absorbing

molecules touching

If you add two waves that are 1/2 wavelength off each other they

Add to be greater than either

add to be more than one wave, but less than double.

add, but don't change intensity

cancel out entirely

Read 3.6-3.7 - do you have any questions?

Think about how an ambulance sounds when it is sitting still. Then think about how different the ambulance sounds when it passes by. (you can listen to it here) how would describe the difference

Using the doppler shift, we should be able to tell if a star is moving

left or right

north or south

up or down

towards us or away from us

What does the atmospheric window refer to?

in what way is the atmospheric window very good for us?

In what way is the atmospheric window bad for astronomers

What is the astronomers solution to this problem?

Watch this video about why glass is transparent.
Do you have any questions?

Radio waves are higher energy or lower energy than visible light?

higher

lower

Radio waves are likely to have enough energy to make electrons to jump to the next level

true

false

Can a radio work in a room with no windows? What does that tell you about how transparent the walls are to radio waves?

They are transparent to radio waves

they are opaque to radio waves

radio waves aren't light, transparency doesn't mean anything.

UV radiation is higher energy or lower energy than visible light?

higher

lower

True or false, UV radiation are more likely to have enough energy to make electrons to jump to the next level compared to visible light

true

false

Have you ever gotten a sunburn when sitting inside next to a window?

Yes

No

Maybe

What do you think this means about glass, transparency and UV radiation?

What do you think happens to the energy of the light that is absorbed and not reflected or transmitted by a solid?

How are you feeling about this?

How molecules scatter light
why atmospheric molecules scatter blue light more than yellow and red light?
why the light scattering happens more in the upper atmosphere than in the lower atmosphere
why the sky is blue
why the sun looks yellow
what is the doppler effect
what red shifting light looks like vs blue shifting light
why atmospheric absorption is a problem for astronomers,
when does light get absorbed by an atom and when does it get transmitted through?
what happens to the light when it gets absorbed
what does it mean when the light gets scattered

Ive got this
Im fuzzy
so confused

Light is created by

molecules spinning

molecules wiggling

molecules absorbing

molecules touching

If you add two waves that are 1/2 wavelength off each other they

Add to be greater than either

add to be more than one wave, but less than double.

add, but don't change intensity

cancel out entirely

Using the doppler shift, we should be able to tell if a star is moving

left or right

north or south

up or down

towards us or away from us

Radio waves are higher energy or lower energy than visible light?

higher

lower

Radio waves are likely to have enough energy to make electrons to jump to the next level

true

false

Can a radio work in a room with no windows? What does that tell you about how transparent the walls are to radio waves?

They are transparent to radio waves

they are opaque to radio waves

radio waves aren't light, transparency doesn't mean anything.

UV radiation is higher energy or lower energy than visible light?

higher

lower

True or false, UV radiation are more likely to have enough energy to make electrons to jump to the next level compared to visible light

true

false

Have you ever gotten a sunburn when sitting inside next to a window?

Yes

No

Maybe

How are you feeling about this?

How molecules scatter light

why atmospheric molecules scatter blue light more than yellow and red light?

why the light scattering happens more in the upper atmosphere than in the lower atmosphere

why the sky is blue

why the sun looks yellow

what is the doppler effect

what red shifting light looks like vs blue shifting light

why atmospheric absorption is a problem for astronomers,

when does light get absorbed by an atom and when does it get transmitted through?

what happens to the light when it gets absorbed

what does it mean when the light gets scattered

Ive got this

Im fuzzy

so confused

s2w2 Doppler shifts, scattering, reflecting, and transparency

s2w2 Doppler shifts, scattering, reflecting, and transparency

Review q - How can you tell what kind of gas is emitting light?

review q - Given that water absorbs microwaves very strongly, explain why the inside of a poptart gets significantly hotter than the crust around it?

What is the difference between emission and absorption in terms of what happens to an electron in an atom?

Watch about Rayleigh scattering do you have any questions?

Read 3.6-3.7 - do you have any questions?

Think about how an ambulance sounds when it is sitting still. Then think about how different the ambulance sounds when it passes by. (you can listen to it here) how would describe the difference

What does the atmospheric window refer to?

in what way is the atmospheric window very good for us?

In what way is the atmospheric window bad for astronomers

What is the astronomers solution to this problem?

Watch this video about why glass is transparent.Do you have any questions?

What do you think this means about glass, transparency and UV radiation?

What do you think happens to the energy of the light that is absorbed and not reflected or transmitted by a solid?

Review q - How can you tell what kind of gas is emitting light?

review q - Given that water absorbs microwaves very strongly, explain why the inside of a poptart gets significantly hotter than the crust around it?

What is the difference between emission and absorption in terms of what happens to an electron in an atom?

Watch about Rayleigh scattering do you have any questions?

Light is created by

If you add two waves that are 1/2 wavelength off each other they

Read 3.6-3.7 - do you have any questions?

Think about how an ambulance sounds when it is sitting still. Then think about how different the ambulance sounds when it passes by. (you can listen to it here) how would describe the difference

Using the doppler shift, we should be able to tell if a star is moving

What does the atmospheric window refer to?

in what way is the atmospheric window very good for us?

In what way is the atmospheric window bad for astronomers

What is the astronomers solution to this problem?

Watch this video about why glass is transparent.Do you have any questions?

Radio waves are higher energy or lower energy than visible light?

Radio waves are likely to have enough energy to make electrons to jump to the next level

Can a radio work in a room with no windows? What does that tell you about how transparent the walls are to radio waves?

UV radiation is higher energy or lower energy than visible light?

True or false, UV radiation are more likely to have enough energy to make electrons to jump to the next level compared to visible light

Have you ever gotten a sunburn when sitting inside next to a window?

What do you think this means about glass, transparency and UV radiation?

What do you think happens to the energy of the light that is absorbed and not reflected or transmitted by a solid?

How are you feeling about this?

Watch this video about why glass is transparent.
Do you have any questions?

Watch this video about why glass is transparent.
Do you have any questions?