Flashcards for ppx

Geography

The study of how places and people relate on Earth.

Spatial

How things are located and arranged in space.

Open System

A system that exchanges energy or matter with its surroundings.

Closed System

A system that doesn't exchange anything with its surroundings.

Mass Conservation Law

Mass cannot be made or destroyed.

Energy Conservation Law

Energy cannot be created or destroyed; it changes form.

Latitude

Distance north or south of the equator.

Longitude

Distance east or west from a starting point on Earth.

Great Circle

The largest possible circle on Earth, like the equator.

Small Circle

Any circle smaller than a great circle, getting smaller towards the poles.

International Date Line

The line that marks where a new calendar day starts.

Time Zone

An area that uses a specific standard time.

Map Scale

Shows how map distances compare to real distances.

Cylindrical Projection

A method to create a map as if wrapping the Earth in a cylinder.

Planar Projection

A flat map made by projecting Earth onto a plane.

Conic Projection

A map made by projecting Earth onto a cone.

Oval Projection

An oval-shaped map representation of Earth.

Polar Circumference

The distance around Earth at the poles, about 40,008 km.

Equatorial Circumference

The distance around Earth at the equator