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case /data -based (4 Marks)

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Question 14 Marks
Earth and Moon. The moon is earth’s only natural satellite. The mass of the moon is $\frac{1}{100}$and its radius $\frac{1}{4}$times that of earth. As a result, the gravitational attraction on the moon is about $\frac{1}{6}$when compared to earth.

Based on the above information, answer the following questions:
Q.1. The earth’s mass is approximately 6,000,000,000, 000,000,000,000,000 kg.
What is the approximate mass of the moon?
Q.2. The radius of earth is 6371 km. What is the radius of the moon?
Q.3. If an object weighs $5 \frac{3}{5}$ kg on earth, how much would it weigh on the moon?
Answer
(1) $60,00,00,00,00,00,00,00,00,00,000 kg$
(2) $1592 \frac{3}{4} km$
(3) $\frac{14}{15} kg$
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case /data -based (4 Marks) - MATHS STD 7 Questions - Vidyadip