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Class 6 Geography Chapter 3 Question Answers - Motions of the Earth

Very Short Q & A

 Q1: Name the season in which days are shorter.

Ans: winter season

Q2: Equinox has

a. equal days and equal nights.

b. shorter days and longer nights.

c. longer days and shorter nights.

d. shorter days and shorter nights.

Ans: equal days and equal nights.

Q3: If it is winters in Northern hemisphere, then in Southern hemisphere it would be _______.

Ans: summer season

Q4: If earth starts rotating from east to west then the sun will rise from west. True/False

Ans:  False 

Q5: In Australia, Christmas is celebrated in __________ season.

Ans: summer

Q6: Which place is called as land of midnight sun?

Ans: The places beyond Arctic & Antarctic circle

Q7: 6 hours are ignored while calculating a year for the sake of convenience. True/False

Ans: true

Q8: What will happen if the earth did not rotate?

Ans: life would not have been possible

Q9: Define revolution.

Ans: Revolution is the motion of the earth around the Sun on its orbit. It takes 365 days and 6 hours to complete one revolution.

Q10: Define rotation.

Ans: Rotation is the motion of the earth on its axis. It takes 24 hours to complete one rotation.

Q11: The rays of the sun fall directly on 21st June on __________.

Ans: Tropic of Cancer

Q12: What causes day and night?

Ans: Rotation

Q13: What causes different seasons?

Ans: Revolution

Q14: Why day is shortest in northern hemisphere on 22nd December?

Ans: The December solstice is the shortest day of the year in the Northern Hemisphere because the Sun shines directly on the northern half of the Earth, and is the longest day in the Southern Hemisphere because the Sun shines indirectly on the southern half of our planet.

Q15: Which day is considered as shortest day in northern hemisphere?

Ans: 22nd December

Q16: What do you mean by equinox?

Ans: An equinox is an event in which a planet's subsolar point passes through its Equator.

Q17: Christmas in New Zealand is celebrated in ________.

Ans: Summer

Q18: The axis of the earth is a bit tilted and hence makes an angle of 66½o with the orbital plane. True/False

Ans: True

Q19: Earth’s one revolution around sun takes how many days?

Ans: 365 days

Q20: Name The festival of India that follows solar calendar

Ans: Makar sankranti

Q21: Name the festival which marks the harvest season in North India.

Ans: Lohri

Q22: In which month the famous festival of Lohri is celebrated?

Ans: January

Q23: The Arctic Circle experiences day light continuously for ___________.

Ans: 6 months

Q24: Name the day which is considered as the shortest day at Southern Hemisphere.

Ans: 21st  June

Q25: Name the day which is considered as the longest day at Northern Hemisphere.

Ans: 21st  June

Q26: The whole earth experience equal days and equal nights on_________.

Ans: Equinox (takes place twice a year on March 21 and September 23)

Q27: 21st march and 23rd September are the days of

(a) Summer solstice

(b) Winter solstice

(c) Equinox

(d) Spring solstice

Ans: equinox

Q28: Seasons change due to the change in the _________ of the earth.

Ans: Earth’s revolution and inclination of its axis

Q29: How many days, does February have in a leap year?

Ans: 29 Days

Q30: Leap year comes every fourth year because

(a) 6 hours are added for 4 years.

(b) it is easy to divide years by 4.

(c) 3 is not a good number.

(d) 4 hours are added for 6 years.

Ans: (a)- 6 hours added for 4 years becomes 6*4= 24 hours = 1 day

Q31: The earth moves around the sun on a path which is curved. True/False

Ans: True (it is elliptical path which comes under curved category)

Q32: The earth receives light from _________.

Ans: sun

Q33: What is circle of illumination?

Ans: The circle of illumination is the division between day and night over the earth. The circle of illumination bisects (cuts in half) all latitudes.

Q34: Name the angle of tilt of the earth.

Ans: The tilt of the Earth's axis is called obliquity. It is tilted 23.5 degrees relative to our orbital plane.

Q35: The amount of solar radiation received by the Earth to annually vary by about how many percentages?

Ans: The solar radiation at the top of the atmosphere fluctuates by about 6.9% during a year

Q36: 23 ½0 South marks the ____________.

Ans: Tropic of Capricorn is the line that is located 23½  degrees south of the equator.

Q37: On 21st march and 23rd September, the sun rays fall directly on ________.

Ans: On 21st March and September 23rd, direct rays of the sun fall on the equator.

Q38: In the northern hemisphere on 21st June

(a) longest day and shortest night occur.

(b) longest night and shortest day occur.

(c) equal day and equal night occur.

(d) longest day and longest night occur.

Ans: longest day and shortest night occur.

Q39: What are the two factors responsible for the formation of seasons?

Ans: The combined effect of the Earth's orbital motion and the tilt of its rotation axis results in the season.

Q40: The vernal equinox is commonly called _________.

Ans: Spring

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FAQs on Class 6 Geography Chapter 3 Question Answers - Motions of the Earth

1. What are the three motions of the Earth?
Ans. The three motions of the Earth are rotation, revolution, and precession. Rotation refers to the Earth spinning on its axis, causing day and night. Revolution is the Earth's movement around the Sun, completing one orbit in approximately 365.25 days, leading to the change of seasons. Precession is the slow wobbling motion of the Earth's axis, which takes around 26,000 years to complete.
2. How does the rotation of the Earth cause day and night?
Ans. The rotation of the Earth causes day and night because as the Earth spins on its axis, different parts of the planet are exposed to the Sun's light. When a particular region is facing the Sun, it experiences daylight, while the opposite side is in darkness, resulting in night time.
3. What is the significance of the Earth's revolution?
Ans. The Earth's revolution is significant because it determines the length of a year and leads to the change of seasons. As the Earth orbits around the Sun, different parts of the planet receive varying amounts of sunlight, resulting in the seasons we experience. The revolution also helps in measuring time and determining the calendar.
4. How does precession affect the Earth's climate?
Ans. Precession, the wobbling motion of the Earth's axis, affects the Earth's climate by altering the intensity and distribution of sunlight received by different regions over long periods of time. This motion changes the Earth's orientation towards the Sun, leading to variations in the amount of solar radiation reaching different parts of the planet. These changes can influence climate patterns and contribute to long-term climate changes.
5. How long does it take for the Earth to complete one precession cycle?
Ans. It takes approximately 26,000 years for the Earth to complete one precession cycle. Precession is a slow and gradual motion, causing the Earth's axis to trace out a circle over this extended period. This cycle is also known as the precession of the equinoxes and has been observed and recorded by ancient civilizations.
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