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Fluid Mechanics Questions - All Grades

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Grade 8 Fluid Mechanics
What is the SI unit for measuring pressure?
  1. Newton
  2. PSI
  3. Pascal
  4. Ampere
Grade 3 Fluid Mechanics
Which is an object that will float in water?
  1. Penny
  2. Rubber Ball
  3. Sponge
  4. Can of food
Grade 9 Fluid Mechanics
Which one of the following substances will float in water? (Note: The density of water is 1.0 gcm3.)
  1. gold- density = 19.3 g/cm
  2. milk - density = 1.03 g/cm
  3. ice - density 0.92 g/cm
  4. b and c
Grade 9 Fluid Mechanics
Bernoulli's principle applies to                         .
  1. gases only
  2. liquids only
  3. both gases and liquids
  4. neither gases or liquids
Grade 5 Fluid Mechanics
Buoyancy is an object's ability to float.
  1. True
  2. False
Grade 1 Fluid Mechanics
Which object will float in a tub of water?
  1. an iron weight
  2. a heavy rock
  3. a flat, thin leaf
  4. a solid gold statue
Grade 6 Fluid Mechanics
What is a non-Newtonian liquid?
  1. It is a substance that melts when you touch it.
  2. It is a substance that cannot become a solid.
  3. It is a substance that becomes solid when you put pressure on it.
Grade 12 Fluid Mechanics
Wind speed will increase considerably in a mountain pass due to the inverse relationship between speed and pressure. What explains this effect?
  1. Pascal's principle
  2. Archimedes' principle
  3. Bernoulli's principle
  4. Newton's principle
Grade 6 Fluid Mechanics
The airfoil shape gives an object                .
  1. gravity
  2. lift
  3. drag
  4. thrust
Grade 6 Fluid Mechanics
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.
Grade 3 Fluid Mechanics
Which one of these is an example of surface tension?
  1. Dropping little drops of water onto a penny to see a bubble of water form.
  2. Running into the water at the beach on a hot day.
  3. Peeling a orange for a snack.
  4. None of the above
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