How do scientists support claims about different models of light?(1 point)
Responses
They use reasoning to prove which model is correct and find evidence to further prove their point.
They use reasoning to prove which model is correct and find evidence to further prove their point.
They use reasoning to make a model and then make sure to believe only the evidence that matches with their model.
They use reasoning to make a model and then make sure to believe only the evidence that matches with their model.
They collect evidence and make sure that the model can be used with reasoning to explain the evidence.
They collect evidence and make sure that the model can be used with reasoning to explain the evidence.
They focus on the evidence and what it makes them think, rather than worrying about how to reason through it.
They collect evidence and make sure that the model can be used with reasoning to explain the evidence.
In the photoelectric effect, electrons are ejected by matter only if they are given energy from light of a high enough frequency. It does not matter how bright the light source is; only frequency matters. Which reasoning explains why particles are better than waves for describing this phenomenon?(1 point)
Responses
The energy from photons of light would never be enough to free electrons because they don't have the same energy if they are just particles.
The energy from photons of light would never be enough to free electrons because they don't have the same energy if they are just particles.
The energy from light waves is canceled out by interference at low energies, but not at high energies, so it can free electrons with bright light.
The energy from light waves is canceled out by interference at low energies, but not at high energies, so it can free electrons with bright light.
The energy from photons of light should be enough to knock out an electron, no matter what the frequency of light is, because it is moving so fast.
The energy from photons of light should be enough to knock out an electron, no matter what the frequency of light is, because it is moving so fast.
The energy from the waves of light coming from bright lights would add up and free an electron.
The energy from photons of light should be enough to knock out an electron, no matter what the frequency of light is, because it is moving so fast.
Use the passage to answer the question.
Light can be passed through two slits and projected onto a screen. The light from the two light sources produces a pattern of dark and light spots on the screen. The spots can be the result of interference, which happens with waves but not particles. This shows that the wave explanation is best for explaining the spots.
What is the reasoning in this passage?
(1 point)
Responses
The spots are the result of interference, which happens with waves but not particles.
The spots are the result of interference, which happens with waves but not particles.
The light from the two light sources produces a pattern of dark and light spots on the screen.
The light from the two light sources produces a pattern of dark and light spots on the screen.
Light can be passed through two slits and projected onto a screen.
Light can be passed through two slits and projected onto a screen.
This shows that the wave particle is best for explaining the spots.
The spots are the result of interference, which happens with waves but not particles.
Use the passage to answer the question.
Light travels from the stars to Earth. As light travels, it moves through the empty vacuum of space. This is not something that waves do, because they need a medium to travel through, while particles do not. This shows that the particle model is best for explaining this phenomenon.
What is the reasoning in this passage?
(1 point)
Responses
Light travels from the stars to Earth.
Light travels from the stars to Earth.
As light travels, it moves through the empty vacuum of space.
As light travels, it moves through the empty vacuum of space.
This shows that the particle model is best for explaining this phenomenon.
This shows that the particle model is best for explaining this phenomenon.
This is not something that waves do because they need a medium to travel through, while particles do not.
This is not something that waves do because they need a medium to travel through, while particles do not.
Which is a statement of reasoning about the two-slit interference experiment?(1 point)
Responses
If the distance between the slits is increased, the bright fringes will be closer.
If the distance between the slits is increased, the bright fringes will be closer.
Using longer wavelength light will cause the fringes to be farther apart.
Using longer wavelength light will cause the fringes to be farther apart.
When the electromagnetic wave peaks overlap, a bright fringe forms.
When the electromagnetic wave peaks overlap, a bright fringe forms.
The screen shows a pattern of bright fringes and dark fringes.