Class 5 SST Question Answers - Movements of Earth

Q1: What is the name of the force that causes the Earth to flatten at the poles and bulge at the equator?
Ans: Centrifugal force.

Q2: What causes day and night on Earth?
Ans: Earth's rotation.

Q3: How fast does the Earth rotate at the equator?
Ans: 1,000 miles per hour.

Q4: What effect does the Earth's rotation have on the movement of water in the oceans?
Ans: It influences and redirects tides.

Q5: In which hemisphere does the Northern Hemisphere experience summer when the North Pole is tilted towards the Sun?
Ans: Northern Hemisphere.

Q6: What is the point at which Earth is closest to the Sun called?
Ans: Perihelion.

Q7: How long does it take for Earth to complete one full orbit around the Sun?
Ans: Approximately 365.24 days.

Q8: What causes the varying length of days and nights on Earth?
Ans: Earth's rotation and tilt.

Q9: What is the term for the two moments in the year when the Sun is farthest north or south from Earth's Equator?
Ans: Solstices.

Q10: What occurs during an equinox in terms of daylight and night hours?
Ans: Approximately 12 hours of daylight and 12 hours of night. 

Q11: What factor determines the temperature distribution on Earth?
Ans: Distribution of insolation.

Q12: What effect does the presence of more land in the Northern Hemisphere have on its temperature?
Ans: It leads to more extreme temperature variations.

Q13: What is the term for the effect on land temperature due to the proximity of oceans?
Ans: Maritime influence.

Q14: Which movement of the Earth is responsible for day and night?
Ans: Rotation.

Q15: How long does it take for the Earth to complete one full rotation?
Ans: Approximately 24 hours.