Show:
Many Uses of Fluids
Particle Theory
Properties of Fluids
Fluid Systems
Fluid Spills *not on test
100
Which of the following is not an example of a fluid used for transporting solids? a) a leaf blower b) a slurry c) toothpaste d) air in a scuba tank
What is D
100
Name 2 of the 6 principles of particle theory.
Any two of: 1)All matter is made up of tiny particles 2)All particles are in constant motion 3)All particles of one substance are identical 4)Temperature affects the speed at which particles move 5)In liquids and solids the particles are close together and have strong forces of attraction between them 6)In a gas, there are spaces between the particles
100
The resistance of a fluid to flow is called what?
What is viscosity.
100
Name the two types of fluid systems.
Pneumatic and hydraulic
100
What does B.P. stand for? 100 bonus points if you can say what it used to stand for aswell.
What is Beyond Petroleum. What is British Petroleum.
200
Name a common item that was not in fluid form as part of its production.
E.g. a wooden table, fabric, etc.
200
Use particle theory to explain how temperature affects viscosity.
When a fluid is heated it flows more freely because the particles are moving faster and are further apart so they have less attraction between them. When a fluid is cooled it flows less freely because the particles move more slowly, become closer together and so there is more attraction between them.
200
What is the bouyant force equal to?
What is the weight of the fluid displaced by the object.
200
How does a hydraulic system work?
It uses a liquid under pressure to transmit a force and to do work.
200
Name 3 ways that oil is used in our everyday lives.
E.g. for heating, in our cars, to make plastics, asphalt
300
How is a slurry mixture used in everyday life?
E.g. Planting new grass through hydro-seeding.
300
Using an example explain thermal expansion.
E.g. When a fluid is heated the particles move farther apart. This causes the volume of the fluid to increase. As the temperature outside increases the particles inside the thermometer mover further apart and the level of liquid rises.
300
A piece of Lego has a density of 1.13. What will happen when it is placed in a container of water? Why?
Water has a density of 1.0. Since the Lego is more dense than the water, the Lego will sink.
300
What does a valve do?
It is a device in a fluid system that controls the flow of fluid.
300
What caused the Deepwater Horizon oil spill?
A dangerously high level of methane gas built up which caused an explosion. Safety alarms were ignored and drilling continued.
400
Name 5 ways fluids and or fluid technologies are used in a car.
-oil to lubricate the engine -paint is applied as a liquid -windsheild washer fluid -air circulated by the heating/fooling system -gasoline -brake fluid -compressed air in the tires
400
Which of the following makes water an unusual substance? a)It contracts when it freezes b)It expands when it freezes c)It contracts when it boils d)It expands when it boils
What is B
400
You make a hole in both the top and the bottom of a water bottle and then squeeze the bottle. Will more water come of the top or the bottom hole?
The amount of water will be equal because of Pascal's law.
400
What is an example of a pnematic system in your body?
What your respiratory system.
400
What was one of the clean up methods used in the Gulf Coast?
The dispersant Corexit.
500
Name and give 2 examples of the type of fluid becomes solid-like when force is applied.
What is shear thickening fluid. Shear-thickening fluid is used to make puncture proof vests for police officers, cell phone cases, helmets, and body armour for extreme athletes.
500
If you magnified a drop of gatorade hundreds of thousands of times what would you see? a) many identical gatorade particles with gatorade between the particles b)many identical gatorade particles with empty spaces between the particles c)many gatorade particles of different shapes and sizes with gatorade between the particles d)many gatorade particles of different shapes and sizes with empty spaces between the particles
What is B
500
What are the standard units of density for a solid, a liquid, and a gas?
Solid = g/cm3 Liquid = g/mL Gas = kg/L
500
A car hoist is filled with oil. Why would it be difficult to use if it was filled with air?
Air is compressible, which would make the lifting action slow and inconsistent.
500
Has the oil from the Gulf Coast spill been cleaned up? Explain.
No. Environmental groups have found evidence that while there is little visible oil on the water's surface there are large pools of oil still deep in the ocean.