Forces in Fluids

Question 1

The amount of pressure you exert depends on what force you exert?

Answer 1

the area; the larger the more forces is distributed, the less pressure is exerted

Question 2

pressure

Answer 2

an equal forces to another that is exerted on a surface divided by the total area over which the force is exerted

Question 3

what is the equation for pressure?

Answer 3

Pressure = force divided by area

Question 4

pascal

Answer 4

the unit for pressure, N/m^2 = 1 Pa

Question 5

fluid

Answer 5

a material that can easily flow and change its shape

Question 6

In a fluid, all of the force exerted by the individual particles combine to make up what?

Answer 6

the pressure exerted by the fluid

Question 7

The number of a fluid’s particles are large which considers them to be what?

Answer 7

a whole

Question 8

stationary fluid

Answer 8

the total force exerted by the fluid divided by the area over which the force is exerted that is also the pressure at a given point is exerted equally in all directions

Question 9

How does pressure balances together?

Answer 9

it presses on things from every direction from the weight of the atmosphere

Question 10

when does atmospheric pressure decrease?

Answer 10

as elevation increases

Question 11

when does water pressure increase?

Answer 11

when depth increases

Question 12

water pressure is a result of what above the water at a particular point?

Answer 12

water

Question 13

barometer

Answer 13

an instrument that measures atmospheric pressure

Question 14

density

Answer 14

a substance that is its mass per unit volume

Question 15

what is the equation for density?

Answer 15

Density = mass divided by volume

Question 16

what can you predict when comparing densities?

Answer 16

whether an object will float or sink in a fluid

Question 17

what will happen when an object has more, less, or equal density to the fluid?

Answer 17

More density than the fluid →sinks
Less density that the fluid →float on the surface
Equal density to the fluid →flots at a constant depth

Question 18

buoyancy

Answer 18

the ability to floatb

Question 19

Buoyant force

Answer 19

an upward force that occurs when water and other fluid exert and act on a submerged object

Question 20

the buoyant force acts in the direction opposite of the force of gravity, so it makes an object feel…

Answer 20

lighter

Question 21

less density means..

Answer 21

greater the buoyant force experienced

Question 22

submerged object

Answer 22

a net, downward force that occurs when an object has a higher density than a fluid that displaces or take the place of a volume of fluid equal to its own volume

Question 23

partly submerged object

Answer 23

displaces a volume of fluid equal to the volume of its submerged portion only

Question 24

archimedes’ principle

Answer 24

a principle that states that buyant force that act on a submerged object will be equal to the weight of the volume of fluid displaced by the object

Question 25

pascals principle

Answer 25

a principle that states that pressure increases by the same amount throughout and enclosed or confined fluid

Question 26

when force is applied to a confined fluid, the change in pressure is transmitted equally to...

Answer 26

all parts of the fluid

Question 27

hydraulic system

Answer 27

a system that uses liquid to transmit pressure and multiplies the force in a confined fluida

Question 28

hydraulic system multiplies forces by applying the force to a small surface area, the increase in pressure is then transmitted to another part of the confined fluid, pursuing on...

Answer 28

a larger surface area

Question 29

fluids tend to flow from an area of high pressure to an area of...

Answer 29

low pressure

Question 30

bernoulli's principle

Answer 30

a principle that states that the faster a fluid moves, the less pressure it will exert

Question 31

as the speed of a moving fluid increases, the pressure exerted by the fluid...

Answer 31

decreases