science Flashcards

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1
Q

What is cohesion

A

The force of attraction between the particles of a substance.

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2
Q

What is adhesion

A

The force of attraction between particles of a fluid and particles of an other substance.

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3
Q

What is the difference between laminar and turbulent flow?

A

Laminar flow is smooth and regular and turbulent flow is chaotic and irregular.

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4
Q

What is viscosity?
What are examples of a viscous and non viscous fluid?

A

Viscosity is a measure of the thickness of a fluid. The more viscous it is the thicker it is.
Syrup is very viscous and water is not very viscous.

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5
Q

what is flow rate?

A

A measure of how quickly fluids move.

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6
Q

What are some examples of laminar and turbulent flow?

A

Turbulent could be white water rafting. Laminar could be water running through a pipe.

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7
Q

What is an example of both laminar and turbulent flow.

A

When you turn on the sink the water moves down perfectly but when it reaches the sink and stops flowing in a tube like shape it becomes turbulent.
Your bloodstream has a laminar flow. If your blood starts to clot your bloodstream becomes turbulent.

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8
Q

What is the particle theory?

A

1: All matter is made up of tiny particles.
2: Particles have space in between.
3: Particles are always moving.
4: Particles move faster when heated.
5: Particles are attracted to each other.

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9
Q

What are the 6 main bodily fluids?

A

1: Sweat
2: Oxygen
3: Blood
4: Urine
5: Stomach acid
6: Saliva

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10
Q

What is an eddy?

A

An eddy occurs when there is a structure that blocks a fluid flowing. This makes the fluid move in a circular motion.

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11
Q

What are fluid mechanics?

A

The study of how fluids behave in both at rest and in motion.

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12
Q

What are Fluid dynamics?

A

The study of fluids in motion.

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13
Q

What are aerodynamics?

A

Aerodynamics is the study of moving gasses.

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14
Q

What are hydrodynamics?

A

Hydrodynamics is the study of moving liquids

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15
Q

Streamlined?

A

A smooth shape designed to decrease resistance to fluid flow so it can flow easier.

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16
Q

What is surface tension?

A

Surface tension is when the particles on top of a liquid have a strong attraction with each other. This makes a film like substance form on top of the liquid.

17
Q

Why is it important to control fluids in some industries?

A

In the food industry it is important to get fluids to flow when and where they want them to.

18
Q

What is a fluid?

A

A fluid is something that flows. It is usualy a liquid or a gas. Fluids do not have a definate shape.

19
Q

What does flow rate depend on?

A
  • The surface the fluid is flowing on.
  • The type of fluid.
  • The force pushing on the fluid.
  • The size of the pipe or opening the fluid is flowing through.
20
Q

Aeronautics

A

The study of the science of flight.

21
Q

Hemophilia

A

Hemophilia is when your blood does not clot like it should. When you start to bleed from an injury you cannot stop it.

22
Q

Blood thinners

A

Blood thinners are medacines you take to prevent blood clots. Blood clotting can cause heart attacks or strokes.

23
Q

What are the 2 fluids essential to life?

A

Water and air.