1. Chapter 4 Review
Properties of Fluids

2. What does KMT stands for?
Category: KMT
What does KMT stands for?
Kinetic Molecular Theory

3. Category: Fluids
A push or a pull is a?
Force

4. Category: States of Matter
The force of attraction between particles in the substance below are not strong. Describe how the particles move around during this state.
The particles move around easily and can slide past each other.

5. The kinetic molecular theory states three things. What are they?
Category: KMT
The kinetic molecular theory states three things. What are they?
All matter composed of particles.
Particles in constant motion.
There are forces of attraction among particles.

6. State the missing processes for changes in state found below.
Category: Changes of State
State the missing processes for changes in state found below.
Solid to gas  sublimation
Liquid to gas  evaporation
Solid to liquid  melting
Liquid to solid  solidification

7. What is considered a fluid? Why do fluids move?
Category: Fluids
What is considered a fluid? Why do fluids move?
Gases and liquids are considered fluids. They move because a force is exerted on them.

8. Define viscosity. Category: Viscosity
The resistance of a fluid to flow and movement.

9. What are three reasons why viscosity occurs?
Category: Viscosity
What are three reasons why viscosity occurs?
1. Cohesion
2. Adhesion
3. Surface Tension

10. Category: Viscosity
As you increase temperature, the viscosity of a fluid does what? Does the fluid become thinner or thicker?
The viscosity decreases (Low viscosity).
The fluid becomes thinner.

11. Mass is measured in cm3. True or false.
Category: Matter
Mass is measured in cm3. True or false.
False, it’s measured in grams, g, or kilograms, kg.

12. Category: Matter
What is the measurement of the force of gravity pulling on an object called?
Weight

13. Category: Matter
1 mL is equal to 1?
1 cm3

14. Category: Matter
The curved liquid surface that you read when looking at a graduated cylinder is called the
what?
Meniscus

15. Category: Matter
Calculate the volume of a rectangular solid with a length of 5 cm, a width of 6 cm, and a height of 3 cm.
5 cm x 6 cm x 3 cm = 90 cm3

16. 23 g – 5 g = 18 g Category: Matter
Calculate the mass of a beaker when the mass of a liquid is 5 g and the mass of the beaker + liquid is 23 g.
The beaker’s mass is:
23 g – 5 g = 18 g

17. Write an equation for density, mass, and volume. D = ? m = ? V = ?
Category: Density
Write an equation for density, mass, and volume. D = ? m = ? V = ?
D = mass/volume
m = volume x density
V = mass/density

18. What are two ways to state the units for density?
Category: Density
What are two ways to state the units for density?
1. g/mL
2. g/cm3

19. Category: Density Problems
A block of fir wood measures 10 cm by 8 cm by 3 cm. It has a mass of 144 g. Calculate the density of the wood.
V = l x w x h
V = 10 x 8 x 3 = 240 cm3
D = m/V
D = 144 g/240 cm3 = 0.60 g/cm3

20. Category: Density Problems
An unknown liquid has a mass of 150 g. Its density is known to be 0.95 g/cm3. Calculate the volume of the liquid.
V = m/D
V = 150 g/0.95 g/cm3 = cm3

21. Category: Density Problems
An unknown liquid has a volume of 1250 cm3. Its density is 1.25 g/cm3. Calculate the mass of the liquid.
m = D x V
m = 1.25 g/cm3 x 1250 cm3
m = g

22. Category: Density
Make a general comment comparing the densities of solids, liquids, and gases.
Solids are generally more dense than liquids, which are more dense than gases. As you move from solid  liquids  gases, there is more room between the particles; thus, the volume has increased.

23. List three properties of fluids and explain each.
Category: Fluids
List three properties of fluids and explain each.
Density - mass/volume
Viscosity – resistance to flow
Buoyancy – upward force exerted on a fluid.

24. State Archimedes’ Principle.
Category: Buoyancy
State Archimedes’ Principle.
The buoyant force on an object immersed in a fluid is equal to the weight of the fluid the object displaces.

25. Category: Buoyancy
How can you modify a dense solid substance to make it float in a less dense fluid?
Change the shape that allows for greater amount of volume.

26. Category: Buoyancy
If the upward buoyant force on an immersed object is greater than the weight of the object, what will the object do?
It will float.

27. Category: Temperature Effects
State how a decrease in temperature affects each of the following: 1. Volume 2. Density 3. Buoyancy 4. Viscosity
Volume – decrease (particles closer together)
Density – increase
Viscosity – increase (high viscosity)
Buoyancy - increase