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WorksheetsEFFECTS OF LIGHT ( VII )
Total questions: 19
Worksheet time: 47mins
Why the sky look blue during midday and red during sunset
Reflection of light
Refraction of light
Dispersion of Light
Scattering of Light
Which of the following is example light scattering ?
( There CAN be more than 1 answer)
The blue sky and the red sky at dusk are natural phenomena caused by the scattering of light
TRUE
FALSE
Why does the Sun appear red at sunset?
Red light is the least scattered and travel the longer distance.
Red light is the most scattered and travel the shorter distance.
Red light is the least scattered and more blue light are scattered.
All the components of white light are absorbed by the atmosphere except red light.
What source of light do you see in the given diagram?
Point source
Extended source
Staring at the Sun during a solar eclipse will not cause permanent damage to your eyes.
When there is a lunar eclipse, we can expect
a solar eclipse 2 weeks before or after.
the world will come to a fiery end.
birds to fall from the skies.
an earthquake
During a lunar eclipse
Earth's shadow covers the moon
the sun's shadow covers the moon
the moon covers the sun
Earth's shadow covers the sun
The position of the Earth, moon and Sun during a lunar eclipse is
Sun--Moon--Earth
Earth--Sun--Moon
Sun--Earth--Moon
Moon--Sun--Earth
What is the source of light in the given picture?
Point source
Extended source
In a point source which of the following can be seen?
only umbra
only penumbra
umbra and penumbra
none
In an extended source which of the following can be seen?
only umbra
only penumbra
umbra and penumbra
none
Dark part of a shadow is called _______
Umbra
Penumbra
Light part of a shadow is called _______
Umbra
Penumbra
Are you reading the lesson?
Yes
No
Write how did you feel ,in this whole year of class 7
