Thursday, 8 May 2014

Science Homework: 8th May 2014


Next week in science we will be looking at the forces that are involved in floating. Can you do some research beforehand and use your knowledge to explain how heavy ships float. Try to use as much scientific vocabulary as possible but make sure it is in your own words!
 
 Due: Friday, 9th May.

5 comments:

  1. HOW SHIPS FLOAT
    The simplest boats, such as rafts, float because the material they are made of is less dense (lighter) than water. Heavy ships can float, because the water they floating it puhes the boat . i read online that the force is called upthrust . A force that a liquid or gas goes upwards on an object that is floating .

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  2. The bottom of the ship is hollow so that part floats and holds the top. I also know that things way less on water so that might help aswel

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  3. Jack and aidan8 May 2014 at 10:01

    If a boat is weighed over 1,000 pounds if you hit something the boat will be displaced straight away. cruise ships can weigh upwards of 71,500 tons. They displace the equivalent water amount when they press down on the ocean, which meanwhile pushes up and keeps the ship buoyant. When engineers are placing different instruments/objects in side the ship, other wise the ship will tip over


    Aidan and Jack

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  4. Boats float because they are built in a special way so they push down on the water with as much force as the water pushes up on them so they don float.The boat also pushes aside the water when it pushes down and make space for itself.he trick to floating is when there’s enough water for the object’s weight and size so that the water pushes up with the more force than the object pushes down!

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  5. When a ship enters into water two forces act upon it : downward force which is called gravity, an upward force called buoyancy. A ship will float only if the downward force (gravity) is less than the upward force (buoyancy). In other words a ship will float in water because it weighs less than the amount of water it displaces. Ships are designed in such a way that it displaces enough water to assure that they will float easily.

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