You Do Need power plug adapter while traveling from Falkland Islands to Zimbabwe.

Here is Why You Need An Adapter

The outlet and plug type used in Zimbabwe are D and G and in Falkland Islands is G. This is how they look like.

Falkland Islands

In Falkland Islands, outlets of type G are in use.

Type G

Zimbabwe

In Zimbabwe, outlets of type D and G are in use.

Type D

Type G