Mix and Flow Jeopardy
WHMIS & Fluids
100pts: Q: What does WHMIS stand for?
A: Workplace Hazardous Material Information System
200pts: Q: Define Fluid.
A: Anything that flows and is level at the top when at rest (Liquid or Gas). Has no
fixed shape.
400pts: Q: Name an example of a fluid that holds together other materials
A: Toothpaste
800pts: Q: What is the name, potential hazard, and correct storage of this symbol?
A: Compressed Gas, could explode or be a projectile, keep away from heat
1200pts: Q: What is the difference b/w a Slurry and Slurry Technology
A: Slurry: the mixture of a solid and a liquid. Slurry Technology: the transport of
solids in water
Mixtures and Pure Substances
(Hint: You must be able to explain each type of mixture and pure substance using the
particle theory)
100pts: Q: What are the four different types of Mixtures?
A: Mechanical Mixture, Solution, Supsension, and Colloid
200pts: Q: What is the different between a Homogenous Mixture and a Heterogeneous
Mixture?
A: Heterogeneous: You can see the different substances that make up the mixture
Homogenous: A solution in which the mixture appears to be one substance
400pts: Q: What is a Pure Substance? And what are the two types of Pure Substances?
A: Is only made up of one kind of matter. You cannot separate them into
different substances. They include Compounds and Elements. (Ie. Aluminum &
Salt)
800pts: Q: What is the difference between a Suspension and a Colloid?
A: They are both cloudy mixtures, however, a Suspension will separate over time.
Concentration & Solubility
(Hint: You must be able to read a solubility graph and table)
100pts: Q: What is the difference between a Solute and Solvent?
A: Solute: The substance that dissolves. Solvent: The substance that does the
dissolving.
200pts: Q: Define Solubility.
A: This is the maximum amount of solute that can be dissolved in a solvent at a
given temperature. The solution is saturated.
400pts: Q: What are the 3 Factors that affect solubility? Use the particle theory to
explain.
A: 1) Type of Solute: Different solutes will attract differently to different
solvents. Solutes may have a greater attraction to themselves or to the solvent..
2) Type of Solvent: Different solvents will attract differently to different solutes.
Solutes may have a greater attraction to themselves or to the solvent..
3) Temperature: Particles are moving faster, creating more space for the solute
particles to fit in between the solvent particles.
800pts: Q: What are 3 factors that affect the RATE of dissolving when trying to dissolve
a sugar cube in water? Use the particle theory to explain.
A: 1) Crush the sugar cube: More particles will be exposed to the solvent,
allowing them to intermingle more quickly.
2) Stirring: This creates space in between the solvent particles, allowing the solute
particles to intermingle between the spaces.
3) Increase the temperature: This will cause the particles in the solvent to move
faster, therefore, creating more space between them. This allows for the solute
particles to fill in between those spaces.
Viscosity:
100pts: Q: Define Viscosity.
A: A fluids resistance to flow. (It will either flow fast or slow)
200pts: Q: What is the relationship between a fluids viscosity and its flow rate?
A: The higher the viscosity the lower the flow rate
400pts: Q: What happens to the viscosity of a fluid when you increase the temperature?
A: When you increase the temperature of a fluid the attraction between the
particles weakens (they move farther apart). This reduces the friction between the
particles, therefore lowering the Viscosity of the fluid.
Density:
100pts: Q: What is Density and how is it measured?
A: It is the amount of particles per certain volume (concentration of a fluid). It is
measured with a hydrometer.
200pts: Q: What happens to the density of a fluid when we increase its concentration?
A: When we increase the concentration, we are increasing the number of particles.
Since Density is the amount of particles per certain volume, the more particles
there are, the greater the Density.
400pts: Q: What happens to the density of a fluid when we increase the temperature?
A: When we increase the temperature the particles are moving farther apart,
therefore the density decreases.
800pts: Q: Which fluid is more dense? Iron (7.87g/cm3) or Nickel (8.90g/cm3)
A: Nickel
Buoyancy:
200pts: Q: What is the relationship between Density and Buoyant force?
A: The more dense a liquid is, the greater its buoyant force. This is a result of
there being more particles in liquids that are more dense. These particles have
more force, which increases the buoyant force.
Pressure:
100pts: Q: Which fluid can be compressed more? A liquid or a gas?
A: Gas
200pts: Q: Calculate the pressure of the input piston if the Force is 80N and the area is
1.3m2.
A: P=F/A,
=80N/1.3m2,
=61.5
400pts: Q: Can you calculate the force of the output piston if the area is 3times larger
than the input piston?
A: Fsmall/Asmall = Flarge/ALarge
80/1.3=x/3.9
= 240
800pts: Q: What is Pascals Law?
A: In a closed system, the fluid will exert pressure equally in all directions.
Technologies of Fluids
100pts: Q: What is the difference between a Pneumonic System and a Hydraulic System?
Give an example of each.
A: Pneumonic: Uses compressed air to do tasks (Ex. Dentists Drills, Paint Spray,
Air Brakes, Jack Hammers)
Hydraulic: Uses compressed liquid to do tasks (Ex. Car Lift)
200pts: Q: How does detergent work to clean your clothes?
A: The detergent is soluble and attracts the dirt and stains from your clothing.
400pts: Q: What is an example of a natural pump in our body?
A: Heart. Pumps blood throughout our bodies
800pts: Q: How does a submarine work? How does it ascent and descend in the water?
A: Hollow tanks. (Fill with water to sink and force compressed air into them to
rise)