AST 406 Cement Boat

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AST 406 Cement Boat

  1. 1. PHScience Name: ________ Name: ________ Concrete Boat Analysis Problem: To determine if your boat floats and the reason why or why not. Materials: 1 sink, water, graduated cylinders, balance Procedure: 1. Draw an isometric view of the boat: top, front, side. 2. Determine the mass of the boat cement 3. Determine the volume of the boat cement by displacement, using a partially full graduated cylinder. 4. Determine the volume of water contained by the boat, using a graduated cylinder. 5. Clean up your lab site. Data: Mass of boat concrete (g) Volume of boat concrete (mL) Volume inside boat Amount of water held by boat (mL) Total Volume of boat = Volume of boat concrete + Volume inside boat Mass of water displaced by total volume of boat 1 mL of water has a mass of 1 g Calculations: Density of Concrete (g/mL) D= Mass of boat concrete (g) Volume of boat concrete(mL) Density of Boat (g/mL) D= Mass of boat concrete (g) Total Volume of boat (mL) Weight (Force) of boat concrete (N) = mass of boat concrete (kg) x 9.81 m/s2 Weight of water displaced by boat (N) = mass of water displaced (kg) x 9.81 m/s 2
  2. 2. Discussion: Did your boat float? Define Archimede’s Principle from your textbook. Define Buoyancy from your textbook. Compare the density of your boat to the density of water (1g/mL). Which was less? How does the density of the boat relative to the density of water affect its buoyancy? Compare the weight of the boat relative to the weight of the water displaced by the boat. Which was greater? How does the weight of the boat relative to the weight of the water displaced by a boat affect its buoyancy? List one mechanical property of concrete. List one mechanical constraint on the walls from the water. List one deformation of the wall caused by the water. Conclusion: Therefore, the concrete boat could float/not float because:
  3. 3. Top Front Side Name of Object: Scale: Lines straight: Pencil used: Neat, no erase marks: Dimensions/units 3 views, positioned correctly

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