Physics Flashcards

1
Q

when the piston is pushed and velocity and pressure will be

A

The air inside the tube flows out of it and velocity of air at nozzle will be high.so pressure at nozzle decreases

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2
Q

Because of the pressure difference the liquid will be

A

The liquid in the container Rises up through capillary tube. This liquid meet with the out flowing air and mixture of air and liquid is sprayed out

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3
Q

Magnus effect

A

For a spinning ball velocity of air streamline about it becomes greater than that below.
The pressure about become lesser than that of below
So the ball gets upward shift

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4
Q

Frictional force that opposes relative motion between liquid and fluid layers

A

Viscosity

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5
Q

An object partially or wholly immersed in a fluid, the upward force is

A

Buoyant force

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6
Q

In buoyant force weight of the fluid displaced is equal to the

A

The force

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7
Q

a spherical body falling through viscous medium

A

Terminal velocity

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8
Q

Three forces acting on terminal velocity Of body

A

Weight of the body downward
Buoyant force upwards

Viscous force upward

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9
Q

Work done to increase surface area of a liquid
Meniscus by Unity

A

Surface Energy

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