Under Pressure
Density and Random
Buoy UP!
Math in Science
Forces in Flight
100
What happens to pressure as the depth of a fluid increases?
Increases
100
How much volume does a 100mL object displace in a fluid?
100 mL
100
Which of the following would not affect the level at which a boat floats in a body of water?
a. depth of the water
b. number of people in the boat
c. shape of the canoe
d. density of the canoe's material
a. depth of the water
100
An object has a mass of 4g and a volume of 2ml, what is the density of the object?
density = mass/volume
density = 4g/2ml
density = 2 g/ml
100
What is affected by an airplane's speed?
a. buoyancy
b. gravity
c. air quality
d. lift
d. lift
200
What happens to the pressure as altitude increases?
Decreases
200
The amount of matter in a given volume
Mass Divided by Volune
Density
200
This is the upward force exerted on an object in a fluid
Buoyant force
200
a. the bottom of the meniscus
200
Why would a pilot adjust a plane's wing flaps?
a. to reduce cabin pressure
b. to increase drag
c. to decrease drag
d. to increase cabin pressure
c. to decrease drag
300
This is the unit of pressure.
Pascal Pa
300
What is the density of water?
1 g/mL
300
A floating, or sinking object has a weight of 15 N and a Buoyant Force of 10 N.
Will the object Sink or Float?
SINK
300
The pressure of 50N object over a 2m2 area
25 Pa or 25 N/m2
300
This is the forward force produced by an airplane's engine.
Thrust
400
What are the 2 properties of a fluid?
Flow and takes the shape of a container
400
Would an object that has a density of 2g/mL float in water?
Nope
400
What happens to oject with a density equal to the fluid it is in?
Suspends
400
The pressure of a 100N object over a 20m2 area
5 Pa or 5 N/m2
400
The Principle that states that as a speed of a fluid increases, the pressure decreases.
Why a fast moving plane gets lift :)
Bernoulli's Principle
500
Why were we able to crush a can with the atmosphere?
Air or atmosphere was removed from the can, decreasing the pressure exerted by the can. IMPLOSION !
500
What is the density of a 20g object with a 4mL volume?
5 g/mL
500
The Principle that an object displaces a volume of fluid equal to its own volume
(bathtub guy's principle)
Archimedes Principle
500
The Force of an object exerting 10 Pa of Pressure over a 3 m2 area
30 N
500
What would happen to the pressure in a fluid as speed decreases?
It would increase.