1. According to Archimedes principle, what happens to the buoyant force of an object that floats in water? Increases upward 2. If you displaced 200N of.

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Presentation transcript:

1. According to Archimedes principle, what happens to the buoyant force of an object that floats in water? Increases upward 2. If you displaced 200N of water after going into your bathtub, what is your buoyant force? 200N 3. If an object weighs 50N, it displaces a volume of water that weighs 20N, what is the buoyant force on the object? 20N

For the following identify if the object will float, sink or suspend. 4.An object weighs 2N displaces 10N of water. _Float_____ 5.An object weighs 10N displaces 2N of water. __Sink_____ 6.An object weighs 10N displaces 10N of water. __Suspended__ 7.What is the equation used to solve for density? D = M/V

8. If liquid # 1 has a volume of 10cm3 and a mass of 20 g, what is the liquids density? 2g/cm3 9. If liquid # 2 has a volume of 25 cm3 and a mass of 50 g, what is the liquids density? 2 g/cm3 10. Which of the liquids in # 8 & 9 is the densest? ___Equal_____ 11. If an object has a density larger than water, will it float or sink? Sink

REMEMBER! Fluids move from an area of High to Low Pressure

The pressure exerted by a moving stream of fluid is less than its surrounding fluid.

Therefore, as the speed of the fluid increases its pressure decreases.

Low Pressure High Pressure

Upward force on the bottom of the airplane’s wing is called the lift

The forward force on the plane is called its thrust

The frictional force is called drag, drag slows an airplane down.

Gravity is the downward force