Q&A: Homework help please – Waves?

Question by NONAME: Homework help please – Waves?
Okay so I have 4 or 5 questions.
this isnt a homework question but im curious
Why does light appear yellow?
Is it really yellow?
If you put a thin blue plastic under it, and point it at a white paper..would it look blue or green?

Next
The diagram below shows a light ray moving through air and approaching water.
Light ray >air> water
Another student says the light ray will slow down and fegract as it movies into the water? Do you agree? Explain why

Another
Mara is a champion surfer, what property of an ocean wave might be more important for her? Explain your answer.

Andrew and his parter are divers. They are working underwater 10m apart on and oil platform. Josh and andrew each make a loud noise of the same volume at the same time, whose partner hears the noise first ? Explain

I missed a week of school when the lesson first started so its very confusing to me..
Please help…I need to UNDERSTAND the material too. This is grade 8, thankyou .
The it is a flashlight
the diagram is this since you cant see pictures

Light ….air… water
The it is a flashlight
the diagram is this since you cant see pictures

Light ….air… water

Best answer:

Answer by billrussell42
Light comes in all different colors. If all light appears yellow to you, you should talk to your doctor.

What is the “it” you are putting a piece of plastic under?

“diagram below” is where?

Light will slow down as it moves into water. Water has a refractive index of 1.33, so speed of light in water is reduced by that factor to 2.26e8 m/s.

I don’t know what “fegract” means.

What do you think? Answer below!