Fluids
Viscosity
Density, Mass, Volume
Buoyancy
Bonus
100
What two states of matter can flow?
Liquid and gas
100
What is viscosity?
The thickness or thinness of fluids is a property called viscosity. Viscosity is the resistance of a fluid to flow. Fluids with high viscosity do not flow as easily as fluids with a low viscosity
100
This is the equation for finding density
What is mass divided by volume?
100
What are the two forces that act on objects in water?
Buoyant force and gravity
100
What temperature of water floats on top?
Warm
200
This fluid is used to transport and take materials to cells in the human body
What is blood?
200
Ketchup, molasses, corn syrup, and honey are all examples of liquids that have this
What is high viscosity?
200
The amount of space occupied by an object is called this
What is volume?
200
What is displacement?
Tells us that when something is completely submerged, the volume of fluid displaced is equal to the volume of the object.
200
What would sink first? A 3kg ball of metal or a 3kg ball of styrofoam?
It would be the same
300
What determines the shape of a fluid?
The shape of the container that it is in
300
Water and vegetable oil are examples of liquids that have this
What is low viscosity?
300
This is a measure of the amount of matter in a substance or object
What is mass?
300
What did Archimedes discover? What did he use it to determine?
The amount of water that spilled out of his bathtub was equal in volume to the space that his body occupied. He used it to determine the amount of gold in the crown.
300
When water freezes, it becomes more dense (T or F)
False (less dense)
400
Give me two examples of fluid in the human body that are not blood.
Sweat, urine, saliva
400
This is one way to determine whether a liquid has high or low viscosity (hint- think of our experiment)
What is speed?
400
This is the measurement of the force of gravity pulling on an object
What is weight?
400
How does buoyancy work with fish?
Their swim bladders fill with air to help fish rise or release air so fish can sink, often in conjunction with forward movement. Some fish, however, don't have swim bladders. These fish typically use continuous forward movement along with angled pectoral fins to stay afloat.
400
Liquids have a definite shape (T or F)
False (Liquids do not have a definite shape)
500
What are two of the points in the Particle Theory?
all matter is made of tiny particles
particles haver empty spaces between them
particles are moving randomly all the time
particles move faster and spread apart when they are heated
particles attract each other.
500
How does adding heat affect the viscosity/flow of fluids?
500
This is the measure of the amount of matter in a given volume of a substance
What is density?
500
What role does buoyancy play in why boats float?
Various
500
Whose boat held the most amount of pennies? How many was it?
Class answer