WorksheetsPhysics, Fluid Mechanics
Total questions: 28
Worksheet time: 17mins
Name
Class
Date
1.
The unit m3 is a unit of:
a)
Volume
b)
Mass
c)
Density
d)
Area
2.
The density of water is ____ g/cm3.
a)
1
b)
1000
c)
100
d)
10
3.
Cutting a watermelon in half causes the density of the watermelon to:
a)
Increase
b)
Decrease
c)
Remain constant
4.
A g or kg is a unit of:
a)
Mass
b)
Volume
c)
Density
d)
Area
5.
Standing on one foot causes the pressure on the floor to:
a)
Increase
b)
Decrease
c)
Remain constant
6.
It is "safe" to lay on a bed of nails due to:
a)
The increased area the nails create
b)
The increased pressure the nails create
c)
The smaller area the nails create
d)
The less force that acts on your body
7.
When dealing with pressure, area, and force have what type of relationship?
a)
Direct
b)
Inverse
c)
No relationship
8.
Which of the following is NOT an example of unites for expressing pressure?
a)
N/m2
b)
kg/m2
c)
atm
d)
Pa
9.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
10.
A 2 m long steel cube rests on the floor. The pressure the cube exerts on the floor is 2000 Pa. Find the force of the cube.
a)
0.001 N
b)
1000 N
c)
4000 N
d)
8000 N
11.
What system used in many applications like forklifts or jacks works on Pascal's principle
a)
hydraulics
b)
sprockets
c)
widgets
d)
brakes
12.
What force causes the wood to float
a)
weight
b)
density
c)
buoyant
d)
gravity
13.
The English unit for pressure.
a)
psi (pounds per square inch)
b)
mph
c)
lbs
d)
$$$
14.
Which direction does buoyant force always push?
a)
downward
b)
upward
c)
all directions
d)
sponge bob
15.
Car brakes and car jacks are examples of
a)
hydraulic systems
b)
archimedes' principle
c)
atmospheric pressure
d)
buoyancy
16.
The purpose of a water tower is to:
a)
Create a reliable source of pressure
b)
Decrease pressure to avoid stress on pipes
c)
Advertise what town you are in
d)
Place cell phone antennas on
17.
Archimedes' Principle relates the buoyant force to:
a)
The weight of fluid displaced
b)
The volume of the object
c)
The mass of the object
d)
The density of the object
18.
The size of a buoyant force depends on the object's:
a)
Mass
b)
Density
c)
Weight
d)
Volume
19.
Which law relates pressure and volume?
a)
Boyle's Law
b)
Charles' Law
c)
Archimedes' Principle
d)
Newton's 3rd Law
20.
For incompressible fluids, density changes little with changes in what?
a)
depth
b)
temperature
c)
pressure
d)
free-fall acceleration
21.
Which of the following is NOT a fluid?
a)
carbon dioxide
b)
hydrogen
c)
seawater
d)
wood
22.
Which of the following is a fluid?
a)
helium
b)
ice
c)
iron
d)
gold
23.
What does the difference between gauge pressure and absolute pressure equal?
a)
the pressure within the fluid
b)
the pressure at the surface of the fluid
c)
the pressure at the bottom of the fluid
d)
zero
24.
Which of the following is true according to Pascals principle?
a)
pressure in a fluid is greatest at the walls of the container holding the fluid
b)
pressure in a fluid is greatest at the center of the fluid
c)
pressure in a fluid is the same throughout the fluid
d)
pressure in a fluid is greatest at the top of the fluid
25.
How does a liquid differ from a gas?
a)
a liquid has both definite shape and definite volume, whereas a gas has neither
b)
a liquid has a definite volume, unlike a gas
c)
a liquid has a definite volume unlike a gas
d)
a liquid has a definite shape whereas a gas has a definite volume
26.
Which of the following statements is NOT correct?
a)
A fluid flows
b)
a fluid has a definite shape
c)
molecules of a fluid are free to move past each other
d)
a fluid changes it shape easily
27.
Which of the following properties is NOT a characteristic of an ideal fluid?
a)
laminar flow
b)
turbulent flow
c)
nonviscous
d)
incompressable
28.
The formula for density is...
a)
mass/ acceleration
b)
volume/ mass
c)
mass/ volume
d)
none
100 %
