Math
Using the D=M/V formula, what would the formula be for finding M?
M=DxV
What does a hydraulic system contain?
Water (liquid)
What happens to the speed of particles as the temperature decreases?
They slow down
What two states are considered fluids?
Gas and Liquid
What is a colloid?
A colloid is a special kind of mixture that is often cloudy where tiny particles of one substance are scattered and trapped inside another substance.
The particles are not dissolved, but are small enough they can't be filtered out.
What is the missing variable from this formula P=F/_?
What is the unit for the missing variable?
A = Area
meters squared
What does Pascal's Law state?
Pascal's law states that when you apply pressure to a fluid (like water or air) in a closed container, that pressure is transmitted equally in all directions throughout the entire fluid.
How does temperature usually effect the density of matter?
Increase in temperature decreases density
Decrease in temperature increases density.
What is one way that we can test the viscosity/flow rate of a fluid?
Ramp test
Kool Aid powder is dissolved in Milk.
What is the solvent and what is the solute?
Solvent: Milk
Solute: Kool Aid powder
What is the formula to find the area of the face of a cylinder?
Pi(r)2
A bike pump is an example of a _________ system
Pneumatic
How are density and buoyancy related?
Whether something floats or sinks depends entirely on a matchup between the density of the object and the density of the fluid. If object is denser than fluid, it sinks. Less dense than the fluid, it floats.
What are three factors that effect the rate of dissolving
Temperature
Size of particle
Agigation/stirring
Give an example of a homogenous mixture
Coffee, wine, blood, etc.
Using the D=M/V formula, what is the formula for finding Volume ?
V=M/D
Why are gases more compressible than liquids?
Particles of gases are further apart than particles of liquids
Solubility is:
maximum amount of solute that can be dissolved in a fixed volume of solvent at a given temperature.
Which Flow rate indicates the lowest viscosity?
A. 2.0cm/s
B 13.0cm/s
C. 0.0 cm/s
D. 5.0 cm/s
B
Give an example of a heterogenous mixture
oil and water
trail mix
salad dressing
etc
Force exerted by a box is 144N, pressure exerted on the ground below it is 12N/m². What is the area of the box that is touching the table?
12m²
A car jack is used to lift up a car. What type of system does it use?
Hydraulic
What is a synonym for the change of state known as freezing?
a. fusion
b. solidification
c. sublimation
d. vaporization
solidification
What term refers to the ability of a fluid to support an object in or on the fluid?
Buoyancy
The results of a paper chromatography test would tell us what?
Whether something is a pure substance or a mixture.