Deck 9: Mass and Mass-Related Parameters

Question 1

The SI unit for specific volume is

Answer 1

D

Question 2

The ratio of an object's density to the density of water is

A)density
B)specific volume
C)specific gravity
D)specific weight

Answer 2

C

Question 3

Specific gravity is a fundamental dimension.

Answer 3

False

Question 4

Momentum is a fundamental dimension.

Question 5

The ratio of an object's mass to its volume is

A)density
B)specific volume
C)specific gravity
D)specific weight

Question 6

Specific volume is a fundamental dimension.

Question 7

Question 8

Mass is a fundamental dimension.

Question 9

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

Question 10

The ratio of an object's weight to its volume is

A)density
B)specific volume
C)specific gravity
D)specific weight

Question 11

The ratio of an object's volume to its mass is

A)density
B)specific volume
C)specific gravity
D)specific weight

Question 12

The SI unit for specific weight is

Question 13

Density is a fundamental dimension.

Question 14

Which of the following statements best describes what mass is?

A)Mass is the amount of space something occupies.
B)Mass is resistance to acceleration.
C)Mass describes how heavy something is.
D)Mass describes how massive something is.

Question 15

The SI unit for specific gravity is

Question 16

A rectangular block of aluminum has the following dimensions: The density of aluminum is .How much does the block of aluminum weigh?

Question 17

Specific weight is a fundamental dimension.

Question 18

When a spinning ice skater pulls her arms inward, her angular velocity

A).increases
B)decreases
C)remains the same

Question 19

Which of the following is the SI unit for mass?

A)kilogram
B)milligram
C)gram
D)microgram

Question 20

The SI unit for density is

Question 21

A

Question 22

What happens to the volume of a marshmallow when squeeze it?

A)Increases
B)Decreases
C)Remains constant

Question 23

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.

Question 24

What does I stand for in the following equation: $I = \int r ^ { 2 } d m$

A)Inertia
B)Intensity
C)Inductance
D)Internal volume

Question 25

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

Question 26

The Earth has a mass of and an average radius of .What is the density of the Earth?

Question 27

The physical quantity of momentum is a vector quantity (has direction).

Question 28

Mass flow rate is a fundamental dimension.

Question 29

The physical quantity of momentum has

A)magnitude only.
B)direction only
C)both magnitude and direction
D)neither magnitude nor direction

Question 30

What happens to the mass of a marshmallow when squeeze it?

A)Increases
B)Decreases
C)Remains constant

Question 31

Which has the greater momentum; a motorcycle that weighs 2400 N moving at a speed of 8 kmph a bullet that weighs 4 N moving at a speed of $900 \mathrm {~m} / \mathrm { s }$

A)Car
B)Bullet
C)Both the same

Question 32

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

Question 33

The SI unit for momentum is

Question 34

Inertia is a fundamental dimension.

Question 35

What happens to the density of a marshmallow when squeeze it?

A)Increases
B)Decreases
C)Remains constant

Question 36

Question 37

What does L stand for in the following equation: $L = m v$

A)Length
B)Inertia
C)Momentum
D)Torque

Question 38

A truck and a motorcycle are moving with the same momentum.Which has the greater kinetic energy?

A)Truck
B)Motorcycle

Question 39

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.

Question 40

Question 41

It takes 20 seconds to fill a two-liter bottle with water from your kitchen faucet.What is the mass flow rate from the faucet if water has a density of

Question 42

A roll of aluminum foil from the grocery store is 30 cm wide by 25 m long (if you unroll it). If the foil is 0.15 mm thick, and the density of aluminum is , what is the mass of the roll
Of aluminum foil?

Question 43

A roll of aluminum foil from the grocery store is 30 cm wide by 25 m long (if you unroll it). If the roll of foil has a mass of 3 kg and the density of aluminum is , what is the
Thickness of the aluminum foil?

Question 44

An aluminum cylinder is 5cm long and has a mass of 42g .If aluminum has a density of , how long is the cylinder?

Question 45

A roll of aluminum foil from the grocery store is 30 cm wide by 25 m long (if you unroll it). If the foil is 0.15 mm thick, and the specific weight of aluminum is , how much does
The roll of aluminum foil weigh?

Question 46

A block of unknown metal has dimensions: $1 \mathrm {~cm} ^ { \times } 1 \mathrm {~cm} ^ { \times } 3 \mathrm {~cm}$ .The block's density is $80000 ~ { \mathrm { kg } } / \mathrm { m } ^ { 3 }$ .What is the mass of the block?

A)24g
B)240g
C)2.4kg
D)24kg

Question 47

A block of unknown metal has dimensions: . What is the density of the block?

Question 48

While filling up your car with gasoline, you notice that it takes 2 minutes to dispense 60 liters of gasoline.What is the mass flow rate if water has a density of and gasoline has a
Specific gravity of 0.72?

Question 49

Calculate the weight of all the air in this classroom.Assume the density of air to be
approximately