QUIZ on Rotation of Earth
1) It takes approximately 34 hrs to complete on rotation.
Answer: False
Correct Sentence: It takes approximately 24 hrs to complete on rotation.
2) In _______, evening time is increased by sacrificing the morning hours.
Answer: DST
3) Since a small portion of the northern hemisphere is getting light from the sun, it is summer in the regions north of the equator.
Answer: False
Correct Sentence: Since a large portion of the northern hemisphere is getting light from the sun, it is summer in the regions north of the equator.
4) Because Equator receives direct sunlight while Poles receive slant or _______ _______ of the Sun.
Answer: oblique rays
5) Since a _______ _______ of the northern hemisphere is getting light from the sun, it is summer in the regions north of the equator.
Answer: large portion
6) Because of the spherical shape of the _______ and the position of the sun.
Answer: earth
7) Because Equator receives direct sunlight while Poles receive slant or oblique rays of the Sun.
Answer: True
8) [Normal days = _______ _______ at 10 AM and close at 5 PM.
Answer: Start office
9) The opposite is the case on _______ _______, when it is spring in the northern hemisphere and autumn in the southern hemisphere.
Answer: 21st March
10) Refraction is particularly stronger during the morning and the evening time when the _______ rays are slant.
Answer: sun’s
11) In DST = Advance clock by one hour = _______ _______ at 9 AM and Close at 4 PM.
Answer: Start office
12) What is the northern hemisphere of the northern hemisphere?
Answer: Sun.
13) What is a larger portion of the southern hemisphere?
Answer: Gets light.
14) What is the plane of earths orbit around the sun?
Answer: Orbital plane.
15) What causes it?
Answer: rotation of the earth
16) What is the cause of the rotation?
Answer: rotation of the earth
17) What makes an angle of with the orbital plane?
Answer: Earth’s rotational axis
18) What is the angle of the earth?
Answer: an angle of with the normal i.e. it makes an angle of with the orbital plane
———Notes———-
Earth rotates along its axis from nwest to east. It takes approximately 24 hrs to complete on rotation. Days and nights occur due to rotation of the earth. If there was no atmosphere, there would be no refraction and the daytime and nighttime would be near equal at the equator. But due to atmosphere, the sun’s rays gets refracted (bending of light) Refraction is particularly stronger during the morning and the evening time when the sun’s rays are slant. This makes the days longer than nights at the equator. At this position, neither of the poles is tilted towards the sun; so, the whole earth experiences equal days and equal nights. On 23rd September, it is autumn season [season after summer and before the beginning of winter] in the northern hemisphere. The opposite is the case on 21st March, when it is spring in northern hemisphere and autumn in the southern hemisphere. The Equator receives direct sunlight while Poles receive slant or oblique rays of the Sun. DST clock shifts sometimes complicate timekeeping and can disrupt travel, billing, record keeping, medical devices, heavy equipment, and sleep patterns.
