1. Matter can exist in four states, depending on its own and the surrounding conditions: solid,
liquid, gaseous, or plasma.
a. True
b. False
2. Mass is a fundamental dimension.
a. True
b. False
3. The further away the mass is located from the center of rotation, the easier it will be to rotate
the mass about that axis.
a. True
b. False
4. Which of the following is the SI unit for mass?
a. kilograms
b. milligrams
c. grams
d. slugs
5. Which of the following is the U.S. customary unit for mass?
a. kilograms
b. pound mass
c. grams
d. slugs
6. Which of the following is the British Gravitation unit for mass?
a. kilograms
b. pound mass
c. grams
d. slugs
7. A measure of how hard it is to rotate something with respect to its center of rotation is called
a. mass
b. momentum
c. torque
d. mass moment of inertia
8. Momentum is a fundamental dimension.
a. True
b. False
9. The ratio of an object’s mass to its volume is
a. density
b. specific volume
c. specific gravity
d. specific weight
10. Density is a fundamental dimension.
a. True
b. False
11. The SI unit for density is
a.
3
cm
g
b.
ml
g
c.
liter
kg
d.
3
m
kg
12. The ratio of an object’s volume to its mass is
a. density
b. specific volume
c. specific gravity
d. specific weight
13. The SI unit for specific volume is
a.
3
cm
g
b.
g
ml
c.
liter
kg
d.
kg
m3
14. The ratio of an object’s density to the density of water is
a. density
b. specific volume
c. specific gravity
d. specific weight
15. The specific gravity is unitless
a. True
b. False
16. The SI unit for specific gravity is
a.
3
cm
g
b.
ml
g
c.
3
m
kg
d. unitless
17. The ratio of an object’s weight to its volume is
a. density
b. specific volume
c. specific gravity
d. specific weight
18. Specific weight is a fundamental dimension.
a. True
b. False
19. The SI unit for specific weight is
a.
3
cm
lb
b.
c.
unitless
Test Bank Engineering Fundamentals, 5th ed. Chapter 9
d. N/m3
20. What is the momentum of a
kg 1
object that slides at
s
m
20
across an icy lake?
a.
s
mkg
1.0
b.
s
mkg
10
c.
s
mkg
20
d. None of the above
21. When a spinning ice skater pulls her arms inward, her angular velocity
a.. increases
b. decreases
c. remains the same
22. A rectangular block of aluminum has the following dimensions:
“6“1“1
. The density of
aluminum is
3
2700 m
kg
. How much does the block of aluminum weigh?
a.
N5.2
b.
N5
c.
N5.7
d.
N10
23. What happens to the volume of a marshmallow when squeeze it?
a. Increases
b. Decreases
c. Remains constant
24. What happens to the mass of a marshmallow when squeeze it?
a. Increases
b. Decreases
c. Remains constant
25. What happens to the density of a marshmallow when squeeze it?
a. Increases
b. Decreases
c. Remains constant
26. The Earth has a mass of
kg
24
1098.5
and an average radius of
m
6
1037.6
. What is the
average density of the Earth?
a.
3
3500 m
kg
b.
3
5500 m
kg
c.
3
7500 m
kg
d.
3
10000 m
kg
27. A truck and a motorcycle are moving with the same momentum. Which has the greater
kinetic energy?
a. Truck
b. Motorcycle
28. The amount of mass that flows through something per unit of time is called
a. mass moment of inertia
b. volumetric flow rate
c. mass flow rate
d. none of the above
Test Bank Engineering Fundamentals, 5th ed. Chapter 9
29. Mass flow rate is a fundamental dimension.
a. True
b. False
30. The SI unit for mass flow rate is
a. kg/s
b. slugs/s
c. lbm/s
d. none of the above
31. The relationship between the mass flow rate and the volume flow rate is given by
a. mass flow rate is equal to (time)(volume flow rate)
b. mass flow rate is equal to (density)(volume flow rate)
c. mass flow rate is equal to (mass)(volume flow rate)
d. none of the above
32. The closer the mass is located to the center of rotation, the harder it is to rotate the mass
about the given center of rotation.
a. True
b. False
33. The farther away the mass is located from the center of rotation, the harder it is to rotate the
mass about the given center of rotation.
a. True
b. False
Test Bank Engineering Fundamentals, 5th ed. Chapter 9
34. What does I stand for in the following equation (m is mass and r is distance):
=dmrI 2
a. mass moment of Inertia
b. Intensity
c. Inductance
d. Internal volume
35. What does L stand for in the following equation (m is mass and v is velocity):
mvL=
a. Length
b. Inertia
c. Momentum
d. Torque
36. Which has more influence on a moving object’s momentum?
a. the object’s mass
b. the object’s velocity
c. both mass and velocity
d. none of the above
37. The physical quantity of momentum is a vector quantity (has both magnitude and direction).
a. True
b. False
38. The SI unit for momentum is
a.
s
m
b.
2
s
m
c.
2
s
mkg
d.
s
mkg
39. A
kg 1000
car is traveling at 108 km/h. What is its momentum?
40. A
kg 1000
car has a momentum of
s
mkg
30000
. How fast is the car moving?
41. A car has a momentum of
s
mkg
30000
while traveling at
km/h 108
. What is the car’s mass?
42. Calculate the weight of all the air in a classroom with the dimensions of 9 m by 10 m by 3m.
Assume the density of air to be approximately
3
2.1 m
kg
. Express your answers in both Newton and
pound force.
43. A block of unknown metal has dimensions:
cmcmcm 411
. The block’s mass is
g 25
.
What is the density of the block?
Test Bank Engineering Fundamentals, 5th ed. Chapter 9
a.
3
25.6 m
kg
b.
3
5.62 m
kg
c.
3
625 m
kg
d.
3
6250 m
kg
44. A block of unknown metal has dimensions:
cmcmcm 311
. The block’s density is
3
8000 m
kg
. What is the mass of the block?
a.
g24
b.
c.
kg4.2
d.
kg24
45. An aluminum cylinder is
cm 10
long and has a mass of
g 50
, and if aluminum has a density
of
3
2700 m
kg
, what is the radius of the cylinder?
a. 0.77 m
b. 0.077 m
c. 0.77 mm
d. 7.7 mm
46. While filling up your car with gasoline, you notice that it takes 3 minutes to dispense 50 liters
of gasoline. What is the mass flow rate if water has a density of
3
1000 m
kg
and gasoline has a
specific gravity of 0.72?
a. 2 kg/s
b. 0.2 kg/s
c. 20 kg/s
d. 200 kg/s
47. It takes 5 seconds to fill a 500-ml bottle with water from your kitchen faucet. What is the
mass flow rate from the faucet if water has a density of
3
1000 m
kg
?
a. 1 kg/s
b. 0.1 kg/s
c. 0.01 kg/s
d. 1 g/s
48. A roll of kitchen aluminum foil is 30 cm wide by 22 m long (if you unroll it). If the foil is
0.15 mm thick, and the specific weight of aluminum is
3
26460 m
N
, how much does the roll of
aluminum foil weigh?
a. 52.4 N
b. 5.24 N
c. 262 N
d. 26.2 N
49. A roll of kitchen aluminum foil is 30 cm wide by 22 m long (if you unroll it). If the foil is
0.15 mm thick, and the density of aluminum is
3
2700 m
kg
, what is the mass of the roll of
aluminum foil?
a. 267 kg
b. 26.7 kg
c. 2.67 kg
d. 0.267 kg
50. An aluminum alloy has a density of 2800 kg/m3. What is its specific weight?
a. 27500 N/m3
b. 2800 N/m3
Test Bank Engineering Fundamentals, 5th ed. Chapter 9
c. 27500 m3/kg
d. 2800 m3/kg