Rainbows
How is a rainbow formed?
Reflection, refraction, and dispersion of light in water droplets
What type of surface gives off the best reflection?
Smooth and shiny surfaces like mirrors
What is refraction?
Bending of light when it passes between mediums
Why do objects have color?
They absorb some colors and reflect other colors
What is galaxy?
A huge group of stars, dust, and gas
What is dispersion?
Splitting of light into different colors
What is the law of reflection?
Angle of incidence always equals the angle of reflection
Does light speed up or slowdown in water?
It slows down.
What are the primary colors of light?
Red, Green and Blue
What is the galaxy right next to our galaxy called?
The Canis Major Dwarf Galaxy
How many colours are present in a rainbow?
7
Give one use of reflection in real life (other than mirrors)
Periscopes or (Others)
Why does a straw look bent in water? (say anything BUT refraction)
Because of the bending of light
What is white light made of?
All colors of the spectrum
Where is the belt which has a lot of asteroids?
Between Mars and Jupiter
Name all the colours of the rainbow
Red, Orange, Yellow, Green, Blue, Indigo and Violet
Explain the process on how we see our reflection in a mirror.
We see our reflection in the mirror as the light ray goes upon us, then it hits the mirror and reflects back off into our eyes.
What instrument is used to split white light into a spectrum?
Prism
What happens when all colors combine?
It crates white light
What is the name of the dust that makes up part of a galaxy
Interstellar dust.
What causes rainbows after rain?
Sunlight passing through water droplets due to dispersion
What happens when light hits a rough surface?
It scatters (The light does not reflect properly, and the light ray is scattered)
Does light always bend in the same way?
No it depends on the medium
Why is the sky blue?
Scattering of blue light in the atmosphere
How is the Sun considered a star?
It is a hot ball of gas that gives out light and heat, which is the description of a star