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Class 5 SST HOTS Questions - Movements of Earth

Q1: We see the Sun rising in the east and setting in the west. This happens because
(a) The Earth revolves around the Sun.
(b) The Sun revolves around the Earth.
(c) The Earth spins on its axis.
(d) The Sun spins on its axis.
Ans:
(c)
The Earth spins on its axis from west to east. This rotation causes the Sun to appear to rise in the east and set in the west for observers on Earth.

Q2: When the North Pole is tilted towards the Sun,
(a) The Northern Hemisphere has summer and the Southern Hemisphere has winter.
(b) The Northern Hemisphere has winter and the Southern Hemisphere has summer.
(c) Both hemispheres have summer.
(d) Both hemispheres have winter.
Ans:
(a)
When the North Pole is tilted towards the Sun, it's summer in the Northern Hemisphere because that part of the Earth receives more direct sunlight, while the Southern Hemisphere experiences winter due to less direct sunlight.

Q3: The seasons are caused by the
(a) Rotation of the Earth.
(b) Revolution of the Earth around the Sun.
(c) Rotation of the Sun.
(d) Revolution of the Sun around the Earth.
Ans: 
(b)
Seasons are caused by the revolution of the Earth around the Sun. The tilt of the Earth's axis, as it orbits the Sun, leads to variations in the angle and intensity of sunlight. This results in different seasons throughout the year.

Q4: You are 10 years old today. You will be 11 after
(a) The Earth completes one rotation on its axis.
(b) The Earth completes one revolution around the Sun.
(c) The Sun completes one revolution around the Sun.
(d) One year – which is not related to the movement of the Earth.
Ans: 
(b)
You will be 11 years old after the Earth completes one revolution around the Sun, which takes approximately one year. Your age is measured in years based on the Earth's orbit around the Sun.

Q5: Why do the seasons repeat year after year?
Ans: 
The Earth completes its revolution around the Sun in one year (365 days). As a result, the position of the Earth repeats in each revolution. This cyclical movement causes the seasons to repeat every year around the same time.

Q6: In the month of June, it is summer in the Northern Hemisphere and winter in the Southern Hemisphere. Why?
Ans:
In the month of June, the North Pole is tilted towards the Sun, causing the Northern Hemisphere to receive more heat. This tilt results in summer for the Northern Hemisphere. Conversely, during this time, the South Pole is tilted away from the Sun, leading to a reduction in heat received by the Southern Hemisphere. As a result, it experiences winter.

Q7: Why is one day and one night on the Earth of 24 hours?
Ans: 
The reason one day and one night on Earth lasts 24 hours is that the Earth completes one full rotation about its axis in this time frame.

Q8: What is meant by ‘rotation’ of the Earth? What is the effect of the rotation?
Ans: 
The spinning motion of the Earth around an imaginary line, known as the axis, is referred to as the rotation of the Earth. This rotation leads to the occurrence of day and night.

Q9: How many different types of motions does the Earth have?
Ans:
The Earth has two types of motions.
(i) Rotation on its axis.
(ii) Revolution around the Sun along the orbit.

The document Class 5 SST HOTS Questions - Movements of Earth is a part of the Class 5 Course Social Studies for Class 5.
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FAQs on Class 5 SST HOTS Questions - Movements of Earth

1. What are the main movements of the Earth?
Ans. The Earth primarily has two main movements: rotation and revolution. Rotation is the spinning of the Earth on its axis, which takes about 24 hours to complete and causes day and night. Revolution is the movement of the Earth around the Sun, which takes approximately 365.25 days and is responsible for the changing seasons.
2. How does the rotation of the Earth affect our daily life?
Ans. The rotation of the Earth affects our daily life by creating a cycle of day and night. As the Earth rotates, different parts of the planet are exposed to sunlight, resulting in daytime, while the opposite side experiences night. This cycle influences our sleep patterns, work schedules, and activities that depend on daylight.
3. What is the significance of the Earth's revolution around the Sun?
Ans. The Earth's revolution around the Sun is significant because it determines the length of a year and causes the seasons. As the Earth orbits the Sun, the tilt of its axis causes different areas to receive varying amounts of sunlight throughout the year, leading to seasonal changes such as spring, summer, autumn, and winter.
4. What causes the seasons on Earth?
Ans. The seasons on Earth are caused by the tilt of the Earth's axis as it revolves around the Sun. When one hemisphere is tilted towards the Sun, it experiences summer with longer days and warmer temperatures, while the opposite hemisphere is tilted away and experiences winter with shorter days and cooler temperatures.
5. Why do we have leap years?
Ans. We have leap years because the Earth's revolution around the Sun takes approximately 365.25 days. To keep our calendar in sync with the Earth's position in its orbit, every four years we add an extra day, February 29, making that year a leap year with 366 days instead of the usual 365. This adjustment helps maintain the alignment between our calendar and the seasons.
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