Fluids
Substances that can flow.
What are fluids?
This is obtained when mass is divided by volume.
What is density?
What is buoyancy?
The ability of an object to float.
A measure of how quickly fluids move.
What is flow rate?
This is what fish have to help them move up and down in the water while swimming.
What is a swim bladder?
The two states of matter that are gases.
What are liquids and gases?
Which is more dense, a solid or a gas?
A solid
The amount of water displaced when an object floats.
A volume equal to the weight of the object.
A measure of how easily a fluid's particles are able to slide past each other.
What is viscosity?
In an experiment, students measure how fast a car travels with different surfaces (e.g., rug, bubble wrap, wood). What is the dependent variable?
What is how fast the car travels?
Various answers that could include: oxygen, helium, steam, hydrogen, carbon dioxide, water vapor, methane
These are the two measurements needed to calculate density.
What are mass and volume?
Oil floats on water. Water is more dense so it has more mass.
A measure of how strongly the particles of a fluid attract to each other.
What is cohension?
In a science experiment that compares the amount of liquid absorbed by different brands of paper towel, what is the independent variable?
What is the paper towel?
This theory helps to explain how fluids act.
What is the particle theory?
If I have 1mL and 1L of maple syrup, does the density of the maple syrup change?
No
The kind of buoyancy when something does not sink or float.
What is neutral buoyancy?
The attraction between the particles of one substance and the particles of another substance.
What is adhesion?
The mathematician from Rome who figured out how to use water displacement to determine the volume of unusually shaped objects.
Who is Archimedes?
These are the two key characteristics of fluids.
What is 10 g/cm3 ?
This is how very large ships can stay afloat in the water.
What is... the displacement of the water creates a greater buoyant force?
What is a variable?
Water's density is 1g/mL. Will an object with a mass of 25g and a volume of 4mL float or sink?