chapter 3 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

fluid

A

a nonsolid state of matter in which the atoms or molecules are free to move past each other, as in a gas or liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

pressure

A

the amount of force exerted per unit area of a surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

pascal

A

the SI unit of pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

atmospheric pressure

A

the pressure caused by the weight of the atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

buoyant force

A

the upward force that keeps an object immersed in or floating on a liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

archimededes principal

A

the principal that states that the buoyant force on an object in a fluid is an upwardbforce equal to the weight of the volume of fluid that the object displaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Bernoulli’s principal

A

the principal that states that the pressure in a fluid decreases as the fluid velocity increases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

lift

A

an upward force on an object that moves in a fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

thrust

A

the pushing or pulling force exerted by the engine of an aircraft or rocket

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

drag

A

a force parallel to the velocity of the flow; it opposes the direction of an aircraft and, in combination with thrust, determines the speed of the aircraft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly