Forces And Fluids Question Preview (ID: 2255)


Questions Deal With The Physical Properties Of Fluids And The Practical Applications Of Principles. TEACHERS: click here for quick copy question ID numbers.

1. An object weighing 50 kg is floating in a fluid. What is the buoyant force of the fluid on the object?
a) Not enough information is given
b) > 50 kg
c) 50 kg
d) < 50 kg

How does the water pressure change as you dive farther underwater?
a) it increases
b) it decreases
c) it stays the same
d) it depends on where the water is located

At what depth is the buoyant force on a submerged object the greatest?
a) at the surface
b) at sea level
c) buoyant force on a submerged object is the same at any depth.
d) on the ocean floor

At what point is the water pressure greatest on the iceberg?
a) point A
b) point B
c) Point C
d) Water pressure is equal at all points

How much of the iceberg has a weight equal to the buoyant force?
a) all of it
b) the section from a to b
c) the section from b to c
d) There is no buoyant force acting on the object

Archimedes' principle states that _________________________.
a) the buoyant force on an object is greater than the weight of the fluid it displaces
b) when the speed of a fluid increases, the pressure exerted by the fluid decreases
c) pressure applied to a fluid is transmitted unchanged throughout the fluid
d) the buoyant force on an object is equal to the weight of the fluid it displaces

Materials that can flow to fit their containers include ______________________.
a) gases.
b) liquids.
c) both gases and liquids.
d) neither gases nor liquids.

Of the following, where would atmospheric pressure be greatest?
a) at sea level
b) on a mountaintop
c) at the altitude at which planes fly
d) at the outer edge of the atmosphere

The SI unit for pressure is
a) Pa
b) Pr
c) N
d) K

Which of the following is NOT a fluid?
a) ice
b) steam
c) pure oxygen
d) water

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