Q4 of 18 Page 326

Why moon does not have an atmosphere?


The moon’s gravity is 1/6th of the gravity on earth. It is not strong enough to hold the atmosphere on its surface from going back to space.



More from this chapter

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2

State the value of universal gravitational constant. What was its value back in 1947?

 3

State true/false. If false, correct the statement: “Earth exerts a greater force of attraction on apple than apple exerts on the earth.”

 5

What is the gravitational force between earth and an object called?

 6

(a) State Newton’s law of gravitation.
(b) Why is it called universal law?