Drag each g rule to its zone

Exercise and reference answers

Items

1. Group

   Below surface

   Item

   g(1 - d/R)

2. Group

   Below surface

   Item

   Zero at the centre

3. Group

   At the surface

   Item

   GM/R^2

4. Group

   At the surface

   Item

   11.2 km/s escape

5. Group

   At the surface

   Item

   7.9 km/s orbit

6. Group

   Above surface

   Item

   g(1 - 2h/R)

7. Group

   Above surface

   Item

   GM/(R + h)^2

Groups

1. Item

   Below surface

2. Item

   At the surface

3. Item

   Above surface

Instructions

Drag each expression for gravity onto the region where it holds: below the surface, at it, or above it.

Explanation