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# Fluid Mechanics Questions - All Grades

You can create printable tests and worksheets from these Fluid Mechanics questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Bernoulli's principle states that                                                              .
1. pressure is transmitted equally through a fluid
2. pressure increases as temperature decreases
3. buoyant force equals weight of fluid displaced
4. pressure in a fluid decreases as speed of the fluid increases
According to Boyle's law, if the pressure placed upon a gas is increased, then                              .
1. the volume will increase
2. the volume will decrease
3. the temperature will increase
4. the temperature will decrease
Why will a helium-filled balloon float in the air?
1. There is more air than helium.
2. Helium is less dense than air.
3. Helium is as dense as air.
4. Helium is more dense than air.
If an object is floating in a fluid, which of the following is true?
1. The volume of the displaced fluid equals the volume of the object.
2. The density of the fluid equals the density of the object.
3. The density of the fluid is greater than the density of the object.
4. The density of the fluid is less than the density of the object.
A liquid with a low viscosity, or thickness,                     .
1. has a definite shape
2. flows quickly
3. flows slowly
4. fills its container
What are the two factors that affect pressure in a fluid?
1. volume and density
2. weight and temperature
3. depth and density
4. none of the above
As the gas in a rigid container is heated, its                   .
1. pressure increases
2. volume increases
3. pressure decreases
4. volume decreases
You open a cooler to get a soda on a hot summer day and notice a can of diet soda is floating while the cans of regular soda are not floating. What can you infer about this situation? Which of the following is the best statement that describes this phenomenon?
1. The water must be flowing upward in the area of the diet soda.
2. There must be less matter in the regular can of soda.
3. The diet soda must have less mass per unit of volume than the surrounding water.
4. The diet soda can must be made of a different kind of material.