Fluids & Particle Theory
Viscosity & Flow Rate
Density
True or False
Miscellaneous
100
What are the Three States of Matter?
Solid, Liquid, Gas
100
Viscosity is defined as
A fluid's resistance to flow
100
What is the definition of density?
A measure of mass per unit of volume.
100
Oxygen is a fluid.
True
100
What were the two materials we used in the "Mystery Fluid Experiment"
Cornstarch and Water.
200
What is the definition of a fluid?
Any substance that flows and takes up space
200
Which fluid has the higher viscosity? Ketchup or 7-up?
Ketchup
200
What is the definition of mass?
The amount of matter (particles) in a substance. Measured in grams (g).
200
Hot fluids have a higher density than cold fluids.
True.
200
Name one real-life situation where we would use our knowledge of viscosity to help up do something.
Driving: selecting the right motor oil for our cars. Cooking: melting chocolate. Art: artists neeed to thin or thicken their paint.
300
This state of matter has no definite shape or volume.
Gas
300
True or False: A thin fluid has a high viscosity
False
300
What is the definition of volume?
The amount of space a substance takes up. Measured in mililitres?
300
The particles in a solid are farther apart than particles in a gas.
False.
300
Give an example of a fluid with a high density. (hint: think back to the experiment where we layered fluids on top of each other).
Corn Syrup Honey Liquid Dish Detergent
400
All mater is made up of __________________________
Very small particles
400
What is the definition of "flow rate"?
The time it takes for a fluid to flow from one point to another
400
What happens to the particles in a fluid when we heat it up?
The particles move faster and spread apart.
400
Water has a higher viscosity than maple syrup and flows faster.
False. Water does flow faster than buttermilk, but has a lower viscosity.
400
Give an example of a fluid that is a gas.
Air Oxygen Carbon Dioxide
500
Name any one of the five principles of the Particle Theory of Matter
There is space between the particles The particles are always moving The particles are attracted to one another
500
Rank the flow rates of the following substances from slowest to fastest. Yogurt, Water, Hot Chocolate.
Yogurt, Hot Chocolate, Water.
500
In the experiment where we stacked hot water and cold water, which water had the higher density- the cold water or the hot water?
The cold water was more dense.
500
True or False. Water is more dense than oil.
True. That is why water sinks and oil floats on top.
500
Which one of these has the lowest viscosity? Chocolate Fudge Sauce or Coke.
Coke.
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