fluid study

Question 1

what is particle theory

Answer 1

all matter is made up of particles

Question 2

do a positive scientific notation

Answer 2

did you actually

Question 3

do a negative scientific notation

Answer 3

do it

Question 4

how to calculate density

Answer 4

mass / volume = density

Question 5

why isnt sand (eg) a fluid?

Answer 5

because it is made up of tiny solids that are small enough to fit into a container

Question 6

whats aerodynamics?

Answer 6

the way objects move through air

Question 7

why does a car with a spoiler have worse aerodynamics than without?

Answer 7

because the spoiler interrupts the movement of the circulating air

Question 8

whats hydrodynamics?

Answer 8

how objects move through water

Question 9

what’s scientific debit

Answer 9

the flow rate of a fluid

Question 10

what’s viscosity

Answer 10

the way/ability of how a fluid flows

Question 11

what’s large visco, give an example of a fluid

Answer 11

a fluid with a large force of particle attraction

Question 12

what’s small visco, give an example of a fluid

Answer 12

a fluid with a small force of particle attraction

Question 13

what’s a fluid

Answer 13

a form of matter that continuously flows under an applied shear stress, or external force.

Question 14

what’s the Archimedes principal

Answer 14

when a weight is pushed through a fluid, and the weight pushed down is brought back up by the fluid.

Question 15

what’s the weight pushed up called in the Archimedes principal

Answer 15

buoyant force

Question 16

what’s positive floatation, eg

Answer 16

object that rests on the surface of a fluid. eg: leaf

Question 17

what’s neutral floatation, eg

Answer 17

object that rests in between surface and fluid. eg: boat

Question 18

what’s negative floatation, eg

Answer 18

object that moves straight through a fluid. eg: dumbell

Question 19

what happens when a fluid is under pressure

Answer 19

it becomes more compact and their volume decreases, as well as the particles collide and becomes more compact

Question 20

what matter is more compressible than others

Answer 20

gas

Question 21

what if the temperature increases to a fluid

Answer 21

the particles become faster and more spaced out

Question 22

pressure formula

Answer 22

force / surface

Question 23

explain the type of force and surface in the pressure formula

Answer 23

the force is gravitational force by newton, and the surface is surface in m squared

Question 24

what are pascals

Answer 24

units of weight or pressure

Question 25

what do 1000 pascals equal

Answer 25

1 kilo pascal

Question 26

what’s pascals law

Answer 26

if we increase the pressure of an enclosed fluid, the pressure is scattered all around the enclosement.

Question 27

what is hydraulics, give an example

Answer 27

a machine operated by liquids, washing machine

Question 28

what is pneumatic, give an example

Answer 28

a machine operated by air pressure, bike tire

Question 29

how close are particles in liquids

Answer 29

they’re neutral, and somewhat spacious. the force is not too strong

Question 30

how close are particles in gas

Answer 30

they’re very spaced out, and all over the place. there’s barely a force of attarction

Question 31

how close are particles in solids

Answer 31

they’re very compact. the force of attraction is very strong.