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Bernoulli’s Principle

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Presentation transcript:

You need: A pencil, eraser, a compass and your Science duo-tang AIR IN MOTION You need: A pencil, eraser, a compass and your Science duo-tang

Get Started Complete the paper strip activity to show another way to generate lift

Work On It Complete the index card experiments (1-6) Complete the ping pong ball experiment (1-7)

Communicate Complete Communicate questions 1 to 3 on page 17

Bernoulli’s Principle states that moving fluids (air is considered a fluid) exerts less pressure than stationary fluids. When you blow under the card, you cause the pressure to be lowered…

This low pressure pulls the card toward the desk while the greater pressure above the card pushes it down toward the desk. Thus, the card cannot be blown away. The harder you blow, the more you lower the pressure, and the harder the card sticks to the desk.