3.5 Flashcards

1
Q

La pression

A

la force par unité de surface qui agit sur la surface donnée d’un objet

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2
Q

La compression

A

la diminution d’un volume produit par une force.

(lowered volume by a force)

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3
Q

comprimer

A

to make compression

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4
Q

Why is gaz the only one that can be pressurized?

A

Only 1% of the volume of gaz is made from particules.

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5
Q

What is one way to tell that l’énergie cinétique is in gaz?

A

Combining pression and heat makes a balloon explode.

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6
Q

If you heat up a balloon full of gaz, will it shrink or grow larger?

A

grow larger.

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7
Q

are solides and liquides compressible?

A

No, they are considered incompressibles since the particules are already so close to each other.

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8
Q

does hot air fill up the volume of its contenant faster or slower than cold air?

A

faster

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9
Q

La consistance ou la fluidité d’un fluide

A

la viscosité

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10
Q

Lorsque la viscosité augmente,

A

la capacité du fluide à s’écouler (the fluid’s ability to flow)
diminue.

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11
Q

How does heat change viscosité in liquides

A

The more heat,the particules go farther away from each other, less attraction, less viscosité in liquides and friction

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12
Q

L’adsorption

A

est l’attraction qu’exercent deux objets différents l’un
sur l’autre.

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13
Q

What can adsorpsion do?

A

Elle change l’écoulement.

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14
Q

How does heat change viscosité in gaz

A

The more heat, the farther apart the particules go, the faster the particules go, more friction and collision, more viscosité in gaz

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15
Q

La cohésion

A

est la force avec laquelle les particules d’un même
objet ou d’un fluide sont attirées les unes par les autres.

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16
Q

what helps moustiques stand on water?

A

la tension superficielle.

17
Q

what is the formula for pression?

A

1Pa = 1N/m^2