To return to the chapter summary click Escape or close this document. glencoe.com Image Bank Foldables Standardized Test Practice Chapter Resources Click on one of the following icons to go to that resource. Chapter Review Questions Chapter Summary

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To return to the chapter summary click Escape or close this document. Image Bank Click on individual thumbnail images to view larger versions.

To return to the chapter summary click Escape or close this document. Image Bank To transfer images to your own power point follow the following steps: Open the “Resource” file from the CD-ROM disc – view the file in the “normal view” or “slide sorter view” mode - go to slide #2 – from there you can click through the images and follow these instructions. Click once on the image. Copy the image Go to your own power point document Paste the image. Transfer Images

To return to the chapter summary click Escape or close this document. Image Bank Nail

To return to the chapter summary click Escape or close this document. Image Bank Oxygen Tanks

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To return to the chapter summary click Escape or close this document. Foldables Scientific Processes Make the following Foldable to help identify what you already know, what you want to know, and what you learned about science.

To return to the chapter summary click Escape or close this document. Foldables Fold one sheet of paper lengthwise.

To return to the chapter summary click Escape or close this document. Foldables Fold into thirds.

To return to the chapter summary click Escape or close this document. Foldables Unfold and draw overlapping ovals. Cut the top sheet along the folds.

To return to the chapter summary click Escape or close this document. Foldables Label the ovals as shown.

To return to the chapter summary click Escape or close this document. Foldables As you read the chapter, list the characteristics of liquids under the left tab, those characteristics of gases under the right tab, and those characteristics common to both under the middle tab. Construct a Venn Diagram

To return to the chapter summary click Escape or close this document. Pressure equals force divided by area. Pressure Liquids and gases are fluids that flow. 1 1 Reviewing Main Ideas Pressure increases with depth and decreases with elevation in a fluid. The pressure exerted by a fluid on a surface is always perpendicular to the surface.

To return to the chapter summary click Escape or close this document. A buoyant force is an upward force exerted on all objects placed in a fluid. Why do objects float? The buoyant force depends on the shape of the object. 2 2 Reviewing Main Ideas According to Archimedes’ principle, the buoyant force on the object is equal to the weight of the fluid displaced by the object.

To return to the chapter summary click Escape or close this document. Why do objects float? 2 2 Reviewing Main Ideas An object floats when the buoyant force exerted by the fluid is equal to the object’s weight. An object will float if it is less dense than the fluid it is placed in.

To return to the chapter summary click Escape or close this document. Pascal’s principle stated that the pressure applied at any point to a confined fluid is transmitted unchanged throughout the fluid. Doing Work with Fluids Bernoulli’s principle states that when the velocity of a fluid increases, the pressure exerted by the fluid decreases. 3 3 Reviewing Main Ideas A wing provides lift by forcing air downward.

To return to the chapter summary click Escape or close this document. Question 1 Chapter Review Explain why a fire in your fireplace will smoke more strongly on a windy day.

To return to the chapter summary click Escape or close this document. Answer Chapter Review The wind causes the pressure outside the chimney to be less than the pressure inside the house, thus drawing the smoke up and out faster.

To return to the chapter summary click Escape or close this document. Question 2 Chapter Review Why does the cube in this illustration sink while the boat, which is larger, floats?

To return to the chapter summary click Escape or close this document. Answer Chapter Review The boat displaces more water because of its shape. Therefore the boat floats, but the cube sinks.

To return to the chapter summary click Escape or close this document. Question 3 Chapter Review Any object with a density greater than the fluid it’s placed in will _______. Answer The answer is sink. Conversely, any object with a density less than the fluid it’s placed in will float.

To return to the chapter summary click Escape or close this document. Question 4 Chapter Review A ship will float when its _______ is great enough to make its density less than the water’s. A. buoyant force B. mass C. pressure D. volume

To return to the chapter summary click Escape or close this document. Answer Chapter Review The answer is D. Anything less dense than water will float, no matter how massive it is.

To return to the chapter summary click Escape or close this document. Question 5 Chapter Review Suppose you put a toy boat in a bathtub and find that it floats. Next you put in a lead block that is the exact same size and shape as the toy boat, but solid throughout. Why won’t it float?

To return to the chapter summary click Escape or close this document. Answer Chapter Review The shape is only part of the reason. The lead block will sink because, though its volume would be the same as a floating boat’s, its density will be greater, and far greater than water’s density.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 1 When you increase the surface area in contact with a fluid, you _______ the buoyant force on the object. A. decrease B. increase C. maintain D. negate

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is B. This is why a thin sheet of aluminum foil will float, but the same sheet balled up will sink.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 2 During hurricanes or other high-wind events, windows in houses sometimes shatter _______. A. downward B. inward C. outward D. upward

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is C. Bernoulli’s principle states that pressure decreases with motion in a fluid. When the pressure inside the house is greater than the pressure outside, the windows may burst outward.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 3 The first method for determining the buoyant force was discovered well over 2,000 years ago by a Greek man named ______. A. Archimedes B. Aristotle C. Aristophanes D. Arioso

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The correct answer is A. This is why the principle is referred to as Archimedes principle.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 4 Imagine you have a rock that weighs 1000 N with a volume of 10,000 cm 3. You drop it into a tank and it sinks to the bottom. What is the exact volume of the water it displaces? A. 1,000 cm 3 B. 10,000 cm 3 C. 100,000 cm 3 D. 1,000,000 cm 3

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is B. The volume of water displaced will be exactly equal to the volume of the rock.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 5 Whose principle explains what is happening in this image? A. Archimedes B. Bernoulli C. Newton D. Pascal

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The answer is D. A hydraulic system uses Pascal’s principle to make the output force applied on the large piston greater than the input force applied on the small piston.

To return to the chapter summary click Escape or close this document. To advance to the next item or next page click on any of the following keys: mouse, space bar, enter, down or forward arrow. Click on this icon to return to the table of contents Click on this icon to return to the previous slide Click on this icon to move to the next slide Click on this icon to open the resources file. Help Click on this icon to go to the end of the presentation.

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