SAMPLE: The Vikings in North America
Title: Wait Till Olga Sees This!
Background: The mention of Vikings conjures up fearsome images of marine marauders with their horned helmets and dragon-prowed, square sail ships. More than this, they were also skilled sailors, traders, and settlers. Part of their history is tied closely to the early exploration of Eastern North America.
Procedure: Use the URL's to help you answer the questions.
Questions:
1. Go to:http://www.nlc-bnc.ca/history/24/h24-1200-e.html
The Norse originated in what part of the world?
2. Go to: http://www.nlc-bnc.ca/history/24/h24-1210-e.html
Why did they move westward?
3. What is ironic about the term "New World"?
4. Go to: http://www.civilization.ca/hist/canp1/ca01eng.html
Click on the map and then print the enlarged version. Use it and an atlas to estimate the distance of their route from home to L'Anse aux Meadows at the northern tip of Newfoundland. If it took three weeks to sail this route, estimate the speed of their ships.
5. a) A Viking crew rowing a longship at 1.4 knots E in calm water enters a current flowing westward at 0.5 knots. What would be the longship's velocity relative to the shoreline?
b) At what velocity would a piece of wood carried by the current pass by the longship?
c) What would be the longship's velocity relative to the shoreline if the crew rowed with the current?
d) If rowing with the current, what would be the ship's velocity relative to the piece of wood?
6. a) If Norse paddlers could accelerate their longship from rest at 0.14 m/s2, find its speed after a minute.
b) Starting from rest, how long would it take the ship in 6. a) to cover one kilometer?
c) If the ship were travelling at 1.4 m/s E and the paddlers slowed it at 0.1 m/s2 for two minutes, what would be its velocity?
d) Redo 6. c) if the time is ten minutes.
e) What does the sign of the answer indicate?
f) Could such occur?
g) Could such occur when, e.g., a car decelerates?
h) Find the final velocity of a longship moving at 0.7 m/s but accelerating at 0.2 m/s2 for 500 m.
i) What distance would be covered by a longship riding a 0.3 m/s current and accelerated at 0.1 m/s2 for two minutes?