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Gravitational Potential Energy

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Presentation on theme: "Gravitational Potential Energy"— Presentation transcript:

1 Gravitational Potential Energy

2 Energy Conservation Free-falling object

3 Assuming it starts from rest at infinity,
Energy Conservation Free-falling object Assuming it starts from rest at infinity, its speed when it hits Earth is… …which is?

4

5 Energy Conservation “Escape velocity”

6 What is the escape velocity from the surface of the Moon?
Energy Conservation “Escape velocity” What is the escape velocity from the surface of the Moon?

7

8 Energy Conservation “Escape velocity” What is the escape velocity from the surface of the Enceladus, a moon of Saturn?

9 Homework questions?

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