Section Review 1.1-1.3.docx - 1.1 Section Review 1 Why do some objects sink while other float A ship floats because it is constructed with many

Section Review 1.1-1.3.docx - 1.1 Section Review 1 Why do...

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1.1 Section Review 1. Why do some objects sink while other float? A ship floats because it is constructed with many air-filled compartments. Air weighs less than water. Thus, the weight of the air and the steel of the ship weighs less than the water it displaces, so the ship floats. 2.What damage did people first think caused the Titanic’s sinking? They thought the impact of collison caused a huge gash in the ship’s hull that punctured a number of watertight compartments. 3.What is the relationship between a buoyant object and the water it displaces? The buoyant force is equal to the weight of an object in air minus the weight of the object in liquid. 1.2 Section Review 1.Why were many early settlements situated along coasts? The sea was the main way to travel back in the day and much of their trading was done by sea. 2.What special characteristic did Viking ships have? Viking ships had sails and oars so that when there was no wind, 32 people could row the ship. Also, their boats had very flat
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