Lecture 1 - Sept 5 Flashcards
What is Physical Geography?
The study of Earth’s living and nonliving physical systems and how they change through space and time, naturally or by human activity.
What is a system in physical geography?
A set of interacting parts or processes that function as a unit, such as a leaf, a tree, or a forest.
What is Earth systems science?
It considers interactions and feedbacks between Earth’s cycles, processes, and “spheres.”
What is spatial scale?
The physical size, length, distance, or area of an object or the physical space occupied by a process.
What is temporal scale?
The window of time used to examine phenomena and processes, or the length of time they develop or change.
What is the difference between large-scale and small-scale perspectives?
Large-scale perspectives:
Make geographic features large to show more detail
Small-scale perspectives:
Make geographic features small to cover broad regions
Define energy in the context of physical geography.
Energy is the capacity to do work on or change the state of matter.
What is matter?
Matter is any material that possesses mass and occupies space, existing in three states: solid, liquid, or gas.
What is positive feedback in a system?
process by which interacting parts in a system destabilize the system (e.g., global warming → more water vapor → more warming).
What is negative feedback in a system?
A process by which interacting parts in a system stabilize the system (e.g., global warming → more water vapor → more clouds → slowed warming).