Exploring water resistance

Today we carried out an experiment testing to see which shapes travel through water the best. We looked at streamline shapes. A shark has a pointed nose to cut through the water and a smooth, low curved back to allow the water to flow over and around it.

What is water resistance?
How does shape effect the speed an object can travel through water?

We used three different shapes all with the same weight and dropped them into water.
What prediction did you make and why?

In groups we created a poster to demonstrate water resistance

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  1. What is water resistance?
    Water resistance is a force that uses friction to slow down an object moving through water.
    How does shape affect the speed an object can travel through
    The best shape to go through water is a streamlined shape as the end is pointed which leads to less water resistance which allows the object to move quicker than an object that is not streamlined. If you throw an object underwater it will not go in one direction, however, if you add flaps it can allow it to travel in a more straight path. I predict that the streamlined shape would hit the bottom quicker as there is less water resistance which allows the streamlined shape to move quickly .

  2. 1.Water resistance is when a type of friction slows down a object in water.
    2.A shape typically a cone or a triangle shape allows the object to go through the water fast when the water goes over it(the object).

  3. What is water resistance?
    Water resistance is a force that uses friction to slow down an object moving through water.
    How does shape affect the speed an object can travel through water?
    The best shape to go through water is a streamlined shape as the end is pointed which leads to less water resistance which allows the object to move quicker than an object that is not streamlined. If you throw an object underwater it will not go in one direction, however, if you add flaps it can allow it to travel in a more straight path.
    What prediction did you make and why?
    I predicted that the streamlined shape would hit the bottom quicker as there is less water resistance which allows the streamlined shape to move quickly than the square and sphere