explain with an activity to observe fluid friction
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EXPERIMENT NAME:
Observing fluid friction
REQUIRED EQUIPMENT AND MATERIALS:
Glass Of Water
Spoon To Be Used As A Stirrer
EXPERIMENT PROCEDURE:
Take A Glass Of Water And Stir It With A Spoon. Water Whirls Around An Axis.
Stop Stirring And Notice What Happens.
You May Notice That Whirling Speed Of Water Gradually Decreases And After Some Time, The Water Stops Whirling And Comes To A Stable State.
WHAT WAS LEARNT?
The frictional forces between the liquid layers and between the liquid surfaces that is in contact with glass surface are responsible for stopping the rotation of the water.
Water and other liquids exert force of friction when objects move through them. You must have observed fluid friction when you travel in a boat. Not only liquids, gases and air also offer friction to bodies like aeroplanes or jets when they move through air.
Fluids exert force of friction on objects in motion through them. The frictional force exerted by fluids is also called “drag”.
Explanation:
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Answer:
Take A Glass Of Water And Stir It With A Spoon. Water Whirls Around An Axis. Stop Stirring And Notice What Happens. You May Notice That Whirling Speed Of Water Gradually Decreases And After Some Time, The Water Stops Whirling And Comes To A Stable State.
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