WorksheetsQ4 - Physical Sci #3 - Light Phenomenon
Total questions: 15
Worksheet time: 45mins
Rain clouds are mostly gray because:
it mostly absorbs all colors except gray
it reflects less light as it prepares to rain
it reflects more light due to larger water molecules
it does not scatter light and focuses it on the atmosphere
Which of the following is true about rainbows?
i. Secondary rainbows occur in the order ROYGBIV.
ii. Purple can be seen in primary rainbows.
a. b. c. d.
i only
ii only
both i and ii
neither i and ii
Blue skies occur during the day due to:
Diffraction
Mie scattering
Rayleigh scattering
Tyndall Effect
The following correctly explains light passing through a cellophane except:
As white light passes through red cellophane, the cellophane absorbs all colors except red.
Green light can’t easily pass through green cellophane because it shows the same color.
A red light passing through red cellophane will simply go through since they have the same color.
Red light can’t easily pass through green cellophane since the cellophane absorbs the red light.
The following describes a mirage as a light phenomenon except:
Mirages form a circular arc around the anti-solar point, which is located at the shadow of your head.
An optical phenomenon that results from the refraction of light through a non-uniform medium is called a mirage.
If a driver looks down at the roadway at a very low angle, light from objects above the roadway will follow a curved path causing a mirage.
A mirage makes it seem there is a puddle of water on the road that is causing you to see objects located above the road.
Which of the following shows the correct sequence of rainbowformation?
Refract – Reflect – Refract
Refract – Refract – Reflect
Reflect – Reflect – Refract
Reflect – Refract – Refract
What principle is responsible when we see yellow to red skies in the early morning or late afternoon?
Diffraction
Dispersion
Interference
Scattering
For a source like the sun, rays spread out in all directions; the wave fronts are spheres centered on the sun. If the source is of great distance away, the wave fronts can be treated as
wavy lines
parallel lines
This is a proof that light travels in a linear path
shadow
sunrise
blue sky
rainbow
Shadows appear totally dark because of some light that reaches the surface that has been reflected off other objects.
True
False
A scattering is an optical phenomenon that generates the illusion of water and results from the bending of light through a non-uniform medium
True
False
This image is an example of
Concave mirror
Convex mirror
Why does the color of clothing appear different in sunlight than it does in a store under fluorescent light?
Fluorescent light contains more UV influencing the dyes of the clothes compared to sunlight.
Sunlight contains more UV influencing the dyes of the clothes compared to fluorescent light.
A green dot appears green in white light because when the light hits it, it reflects all wavelengths except for green, which is absorbed.
False
True
A spoon is a double mirror.
True
False
