Answers

westward migration of pioneer farmers

This is an example of a free migration but it could be either conservative or innovative. If a dairy farmer in the 1800s in Upstate New York decided to move to Wisconsin that would be his free choice. If he want to continue to be a dairy farmer but on a larger farm because land was cheaper, he would be going to continue his way of life. However, if he went to Kansas to be a wheat farmer, he would be trying something pretty different. That would be innovative.

modern Americans moving to Alaska

This is again free migration and again the move could be conservative or it might be to try something completely different.

Mormon migration to Utah

The Morman migration to Utah was mass. Everyone left Navoo, Illinois and travelled together until the leader, Brigham Young, decided he had found "the place." The move was also impelled. Angry residents of Navoo had lynched the Mormon leader Joseph Smith. Many Mormons feared for their lives if they remained in Illinois.

Middle East nomads moving to urban areas in the Persian Gulf

This is a primitive migration and it is innovative. The nomads will have to settle down and will not be able to continue their traditional way of life.

African slave trade

Forced and innovative.

flight of ancient Britons at the arrival of the Saxon invaders

The original inhabitants of Britain were Celtic people called the Britons. In the 400's the island was invaded by tall, blond, Germanic people, the Saxons (and the Angles, hence the term Anglo-Saxon). They brought a new way of life, a new language, and quickly took over. Some Britons stayed and assimilated to the Saxon way of life; others migrated to more peripheral regions of Great Britain, especially the mountains of Wales and Scotland. This was impelled migration and it was to maintain their way of life, so conservative.

Trail of Tears: relocation of the Five Civilized Tribes to Oklahoma

Forced and innovative.

subsistance slash burn farmers in the Amazon (read this newspaper article)

Primitive and conservative. After two or three years in one place, the Indians must move to another part of the forest, slash the brush, burn what remains, plant crops and begin the cycle. After a couple of years, the soil loses its fertility (400 inches of ppt washes out minerals) and they move again.

resettling of Germans, post WWII, because of border shifts in Poland

The border between German and Poland shifted west stranding ethnic Germans in new Poland. These people moved behind the border to be able to continue to be Germans. They didn't HAVE to, but chose to. Free (or impelled) conservative and mass--large numbers of people moved.