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You can create printable tests and worksheets from these Grade 5 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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Items that float have a property called                .
1. Weight
2. Buoyancy
3. Density
If an item floats it has                 density than water.
1. Higher
2. Lower
3. The Same
A liquid with high viscosity will flow slowly.
1. True
2. False
The measure of the force with which air molecules push on a surface is called
1. conduction
2. convection
3. air pressure
100 liters of salt water will weigh more than 100 liters of fresh water.
1. True
2. False
Water pressure
1. presses downward on an object
2. presses upward on an object
3. presses both upward and downward on an object
4. does not press upward or downward on an object
Oil floats on water because
1. Oil is less dense than water
2. Oil is more dense than water
3. Oil and water have the same density
4. The same volume of oil weighs more than that of water
5. Both water and oil are liquids
If an object floats on a liquid,                                         force of the liquid                                         on the object is                                         than the force of                                         pulling the object down.
1. dense, pushing up, less, nature
2. buoyant, pulling down, greater, gravity
3. buoyant, pushing up, greater, gravity
4. buoyant, pushing up, less, gravity
5. dense, pushing up, greater, gravity
An object is buoyant in water because
1. water pressure increases with depth
2. water pressure decreases with depth
3. the object is heavy
4. the water pressure stays the same
A wooden stick is more                 than a penny.
1. buoyancy
2. buoyant
3. dense
4. saturated
5. gravity
Equal size balls of cork, lead and aluminum are placed in water. Which will float?
2. cork
3. aluminum
Salt water has                 buoyancy than fresh water.
1. less
2. greater
3. equal or same
If an object sinks in a liquid, the force of gravity is LESS than the force of buoyancy pushing up on the object.
1. True
2. False
If an object sinks in a liquid, the force of gravity is           greater           than the force of buoyancy           pushing          up on the object.
Cooling honey will make it flow faster.
1. True
2. False
The slower the rate of flow is, the        more        viscous is the liquid.
A wooden stick floats on water because it is less dense than water.
1. True
2. False