Fluids Flashcards
The two states of matter that can flow are { } and { } .
liquids and gases
All particles of one substance are { }.
Identical
Particles have forces of { } between them.
Attraction
There are greater { } between particles in a liquid than in a solid.
Spaces
The shape of a liquid is determined by …
The volume of its container
Matter is ..
Anything that has mass and volume
Which of the following statement(s) about thermal expansion are true?
When the temperature of a substance increases, its volume increases and when the temperature of a substance decreases, its volume decreases.
Which of the following determines the volume of a gas?
The volume of its container
Define viscosity
The thickness or thinness of fluids is a property called viscosity. Viscosity is the resistance of a fluid to flow.
True or False: Fluids with a high viscosity flow very fast.
False
According to particle theory, particles are constantly in motion. However, when particles have difficulty moving past one another, this is known as …
internal friction
Define flow rate
Flow Rate measures the speed at which a fluid flows from one point to another.
True or False: When adding heat to a liquid, the fluid flows more quickly.
True
True or False: When adding heat to a gas, the fluid flows more quickly.
False
True or False: When removing heat from a gas, the fluid flows more quickly.
True
True or False: When removing heat from a liquid, the fluid flows more quickly.
False
What are the 4 steps that were completed in the “Viscosity Race” lab?
Step One: Making a Prediction
Step Two: Creating step-by-step instructions
Step Three: Making Observations and Recording Results
Step Four: Conclusions and Explanations of Results
How does internal friction affect viscosity
the more internal friction there is, the more difficulty particles have passing by each other.
What happens when you add heat to a liquid?
The particles start to move faster, which leads to more space between the particles, which leads to less attraction between particles, which means particles flow more easily, which means the liquid is less resistant to flow.
What happens when you add heat to a gas
The particles start to move faster, which leads to more collisions and rubbing between particles, which leads to more internal friction, which means particles flow with more difficulty.
Are viscous fluids runny?
No
What are some examples of fluids with low viscosity?
Water, milk, and juice.
What are some examples of fluids with high viscosity
Honey, ketchup, mustard, and toothpaste.
Is a fluid with low viscosity thick or thin
thin
