SMS 204 PHYSICS |EXAM QUESTIONS & ANSWERS
VERIFIED SOLUTIONS 100%|GRADE A+|LATEST 2024/2025
Pressure and shear stress are two examples of force per unit area * - ✔✔True
Kinematic viscosity = dynamic viscosity/density, with units m/s - ✔✔True
Work = force * distance - ✔✔True
In a fluid at rest, pressure at a point is isotropic (equal in all directions) - ✔✔True
A solid object completely immersed in oil will experience the same upward
buoyant force as when it is immersed in water * - ✔✔False
An object that floats on water on Earth may sink if the gravitational acceleration is
changed ** - ✔✔False
The no-slip condition causes momentum to pass from the boundary of the fluid
into the fluid itself - ✔✔True
A boat is most stable when its center of gravity is as high as possible above the
center of buoyancy - ✔✔False
At high Reynolds number, the drag force on an object is proportional to U^2 -
✔✔True
The hull speed of a boat increases with its size - ✔✔True
, The amplitude of particle motion due to surface waves decays with depth -
✔✔True
In the absence of other forces, water flows from low to high pressure ** - ✔✔False
The Reynolds number is a property of fluid - ✔✔False
In the absence of viscosity a stirred cup of coffee will never come to rest - ✔✔True
On the moon one would expect gravity waves to propagate faster than on Earth -
✔✔True
When we calculate the pressure at the base of a fluid column - ✔✔the width of the
column does not matter; gravitational acceleration, height, and density do matter
You are asked to evaluate whether a water-tight, rectangular container will float or
sink in fresh water at room temperature. What measurements do you need to do in
order to be able to answer this question? * - ✔✔Weight of the container & volume
of the container
Two particles made of the same material are settling in water and the Re << 1. One
has a diameter which is three times larger than the other. Which is true: - ✔✔The
smaller one will sink 9 times slower than the other (The smaller one will sink x^2
times slower than the other)
In water, pressure increases with depth - ✔✔True
VERIFIED SOLUTIONS 100%|GRADE A+|LATEST 2024/2025
Pressure and shear stress are two examples of force per unit area * - ✔✔True
Kinematic viscosity = dynamic viscosity/density, with units m/s - ✔✔True
Work = force * distance - ✔✔True
In a fluid at rest, pressure at a point is isotropic (equal in all directions) - ✔✔True
A solid object completely immersed in oil will experience the same upward
buoyant force as when it is immersed in water * - ✔✔False
An object that floats on water on Earth may sink if the gravitational acceleration is
changed ** - ✔✔False
The no-slip condition causes momentum to pass from the boundary of the fluid
into the fluid itself - ✔✔True
A boat is most stable when its center of gravity is as high as possible above the
center of buoyancy - ✔✔False
At high Reynolds number, the drag force on an object is proportional to U^2 -
✔✔True
The hull speed of a boat increases with its size - ✔✔True
, The amplitude of particle motion due to surface waves decays with depth -
✔✔True
In the absence of other forces, water flows from low to high pressure ** - ✔✔False
The Reynolds number is a property of fluid - ✔✔False
In the absence of viscosity a stirred cup of coffee will never come to rest - ✔✔True
On the moon one would expect gravity waves to propagate faster than on Earth -
✔✔True
When we calculate the pressure at the base of a fluid column - ✔✔the width of the
column does not matter; gravitational acceleration, height, and density do matter
You are asked to evaluate whether a water-tight, rectangular container will float or
sink in fresh water at room temperature. What measurements do you need to do in
order to be able to answer this question? * - ✔✔Weight of the container & volume
of the container
Two particles made of the same material are settling in water and the Re << 1. One
has a diameter which is three times larger than the other. Which is true: - ✔✔The
smaller one will sink 9 times slower than the other (The smaller one will sink x^2
times slower than the other)
In water, pressure increases with depth - ✔✔True
