Unit 1(topics4-6) Flashcards

1
Q
Flow rate
       /       \
     ----------
   /       |      \
--------------
A

/ V \
———-
/ Q X T \
————–

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2
Q
Density
       /       \
     ----------
   /       |      \
--------------
A

/ M \
———-
/ D X V \
————–

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3
Q

The viscosity of gas——-as it is heated.

A

Increases

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4
Q

Gases flow more—–than liquids.

A

Easily

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5
Q

The viscosity of liquids—–as they are heated

A

Decreases

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6
Q

Buoyant force is measured in…

A

Newtons

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7
Q

Swim bladders on submarines are called…

A

Ballast Tank’s

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8
Q

Definition: Viscosity

A

The thickness or thinness of a fluid.

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9
Q

Definition:Viscous

A

High viscosity

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10
Q

Definition: lubricant

A

Used for minimizing friction.

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11
Q

Definition:Flow rate

A

How fast something flows

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12
Q

Definition:Density

A

The amount of mass in a certain volume

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13
Q

Definition:Mass

A

The amount of matter in a substance

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14
Q

Definition:Volume

A

The amount of space occupied by a substance.

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15
Q

Definition:Weight

A

The force of gravity exerted on a mass.

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16
Q

Definition:Force

A

Anything that causes a change in the motion of an object.

17
Q

Definition:Gravity

A

The attractive force between masses, causes objects to be attracted to earth.

18
Q

Definition:Buoyancy

A

The tendency to rise or float on a liquid

19
Q

Definition:Buoyant force

A

The upward force exerted on objects submerged in or floating on a fluid.

20
Q

Definition:Floating

A

Remaining suspended in a fluid

21
Q

Definition:Average density

A

Mass divided by Volume(Swim bladder)

22
Q

Definition:Neutral Bupyancy

A

Gravity=Buoyant force, when they are equal.

23
Q

Definition:Archimedes Principle

A

Objects submerged in water displace water

24
Q

Another way to define viscosity is the…

A

Resistance to flow.

25
Resistance to flow creates...
Internal friction.
26
Viscosity is a_______of all fluids.
Property.
27
Density is the_____per___________of a substance
Mass | Unit volume.
28
Density is a way of expressing a___________________.
Mass to volume ratio.
29
The density of solids is usually expressed in...
G/cm*3
30
There are_____mL in 1L.
1000
31
3 factors affecting buoyancy are...
Density Surface area Shape
32
Life jackets______a persons average density
Lower