Fluids
1. Identify each of the following statements as either true or false. If false, explain why.
(a) Viscosity is a measure of how easily a fluid flows.
(b) Although important, fluids are not essential to many living things.
(c) A meniscus forms when water particles adhere to the sides of their container.
(d) Buoyancy, like water pressure, acts in all directions.
2. Describe the relationship between mass, volume, and density of matter.
3. Use the particle theory to explain the differences between solids, liquids, and gases.
4. Comment on the accuracy of the statement below. Describe some exceptions to the statement if there are any. In general, solids are denser than liquids, and liquids are denser than gases.
5. Use the particle theory to explain why changing the temperature of a fluid can also change its density.
6. The density of a fluid usually decreases as the temperature rises. Explain how the behaviour of water differs from this pattern.
7. What is a hydrometer and what is it used for? Describe how to use a hydrometer.
8. Do hydrometers float higher in liquids that are denser or less dense? Make a Summary At the start of this unit; you created a table with some classmates to activate your knowledge of fluids (what they are, where they are found, how they are used, and some harmful effects of and to fluids). You have also developed a concept map as you worked through the material in the chapters. You will now use that table and initial concept map to finish examining and summarizing what you have learned since then.
9. using the particle theory, describe the relationship between temperature and the viscosity of a fluid. Explain any exceptions to the rule.
10. (a) What is the purpose of a valve?
(b) Choose a type of valve and draw at least two sketches to show how that valve works.
11. Describe the location of valves in the heart and explain their role. Use a diagram, if you find it helpful.
12. List six devices or machines that use fluid
(a) Viscosity is a measure of how easily a fluid flows.
(b) Although important, fluids are not essential to many living things.
(c) A meniscus forms when water particles adhere to the sides of their container.
(d) Buoyancy, like water pressure, acts in all directions.
2. Describe the relationship between mass, volume, and density of matter.
3. Use the particle theory to explain the differences between solids, liquids, and gases.
4. Comment on the accuracy of the statement below. Describe some exceptions to the statement if there are any. In general, solids are denser than liquids, and liquids are denser than gases.
5. Use the particle theory to explain why changing the temperature of a fluid can also change its density.
6. The density of a fluid usually decreases as the temperature rises. Explain how the behaviour of water differs from this pattern.
7. What is a hydrometer and what is it used for? Describe how to use a hydrometer.
8. Do hydrometers float higher in liquids that are denser or less dense? Make a Summary At the start of this unit; you created a table with some classmates to activate your knowledge of fluids (what they are, where they are found, how they are used, and some harmful effects of and to fluids). You have also developed a concept map as you worked through the material in the chapters. You will now use that table and initial concept map to finish examining and summarizing what you have learned since then.
9. using the particle theory, describe the relationship between temperature and the viscosity of a fluid. Explain any exceptions to the rule.
10. (a) What is the purpose of a valve?
(b) Choose a type of valve and draw at least two sketches to show how that valve works.
11. Describe the location of valves in the heart and explain their role. Use a diagram, if you find it helpful.
12. List six devices or machines that use fluid