Modified True/False
Indicate
whether the statement is true or false. If false, change the identified word or phrase to make
the statement true.
|
|
|
1.
|
The relationship between the mass and volume of an object is its weight.
_________________________
|
|
|
2.
|
The volume of an object is due to the space taken up by the atoms of the
object. _________________________
|
Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
3.
|
The space that an object takes up is known as its:
a. | density. | b. | volume. | c. | weight. | d. | mass. |
|
|
|
4.
|
A granite block has a density of 2.6 g/cm3. What is its density in
kg/m3?
a. | 0.0026 kg/m3 | b. | 2.6 kg/m3 | c. | 260
kg/m3 | d. | 2600 kg/m3 |
|
|
|
5.
|
The density of a liquid is higher than the density of a gas because:
a. | gas atoms are smaller than liquid atoms. | b. | gas atoms are larger
than liquid atoms. | c. | atoms in a liquid are closer together than
atoms in a gas | d. | atoms in a gas are closer together than atoms in a
liquid |
|
|
|
6.
|
By adding more copper to an copper block, you:
a. | increase its density. | b. | decrease its density. | c. | decrease its
mass. | d. | do not change its density. |
|
|
|
7.
|
What is the name of the downward curve at the top of the column of water in a
graduated cylinder?
a. | Meniscus | b. | Graduated cylinder | c. | Band | d. | Density |
|
|
|
8.
|
In order to change the density of an object, you can:
a. | increase its mass, keeping its volume the same. | b. | keep its mass and
volume the same. | c. | change its shape. | d. | add more of the same material to
it. |
|
|
|
9.
|
Mass is measured in:
a. | inches and feet. | b. | pounds and ounces. | c. | kilograms and
grams. | d. | cubic centimeters. |
|
|
|
10.
|
Which of the following is NOT a unit to represent density?
a. | kg/m3 | b. | g/cm2 | c. | g/cm3 | d. | kg/cm3 |
|
|
|
11.
|
A rock displaces 40 mL of water. The density of the rock is 2.5
g/cm3. What is the mass of the rock?
a. | 0.0625 g | b. | 16 g | c. | 42.5
g | d. | 100 g |
|
|
|
12.
|
The density of an object depends on which of the following?
a. | How closely the atoms or molecules are packed in the material | b. | The size of the
object | c. | The mass of each atom or molecule that makes up the material | d. | Both A and
C |
|
|
|
13.
|
How does the density of a thin silver wire compare to a silver ring?
a. | It is higher. | b. | It is lower | c. | It is the
same. | d. | You can’t tell without the numbers. |
|
|
|
14.
|
Objects with a high density have:
a. | a large volume for their mass. | b. | a small volume for their
mass. | c. | a large volume for their temperature. | d. | a small volume for their
temperature. |
|
|
|
15.
|
Titanium has a density of 4.5 g/cm3. Rubber has a density of 1200
kg/m3. Which material has the higher density?
a. | Titanium | b. | Rubber | c. | They are the
same | d. | None of the above |
|
|
|
16.
|
A graduated cylinder contains 30 mL of water. You place an object into the
cylinder and the water level rises to 52 mL. What is the volume of the object?
a. | 22 mL | b. | 30 mL | c. | 52
mL | d. | 82 mL |
|
|
|
17.
|
What is the density of a metal ring that has a volume of 3.10 cm3 and
a mass of 6.0 g?
a. | 0.5 g/cm3 | b. | 4.65 g/cm3 | c. | 19.3
g/cm3 | d. | 21.7 g/cm3 |
|
|
|
18.
|
When an object’s volume is made smaller and its mass remains the same, its
density:
a. | increases. | b. | decreases. | c. | remains the
same. | d. | increases then decreases. |
|
|
|
19.
|
The density of an object equals its:
a. | mass ÷ volume. | b. | mass ´
volume. | c. | volume ÷ mass. | d. | volume + mass. |
|
|
|
20.
|
| Material | Density | | Wood | 0.9 g/cm3 | | Glass | 2.3 g/cm3 | | Aluminum | 2.7 g/cm3 | | Iron | 7.8 g/cm3 | | |
A block has a mass of
23 grams and a volume of 10 cm 3. Using the table above, what material is the block made
of? a. | Wood | b. | Glass | c. | Aluminum | d. | Iron |
|
|
|
21.
|
What is the volume of a box with dimensions of 2 cm ´ 5 cm ´ 1 cm?
a. | 10 cm | b. | 10 cm3 | c. | 30
cm | d. | 30 cm3 |
|
Completion
Complete each
statement.
|
|
|
Select the correct term to complete each sentence. There are extra terms in
the list.| density | buoyancy | volume | | mass | float | solids | | Archimedes’ principle | gases | Newton’s first law | | sink | weight | liquids | | | |
|
|
|
22.
|
The relationship between the mass and volume of an object is called
____________________.
|
|
|
23.
|
____________________ usually have a higher density than a liquid of the same
material.
|
|
|
24.
|
You can calculate the ____________________ of an object by multiplying its
density times its volume (D ´ V).
|
|
|
25.
|
Adding more aluminum to a sheet of aluminum changes its mass and
____________________.
|
Short Answer
|
|
|
26.
|
Explain how to measure the volume of an irregularly-shaped object.
|
|
|
27.
|
If you double the size of a piece of glass, explain why you do NOT change its
density.
|
|
|
28.
|
In general, how do the densities of solids, liquids, and gases compare?
|
Problem
|
|
|
29.
|
An object has a mass of 100 g and a volume of 50 cm3. What is its
density?
|
|
|
30.
|
A 6 cm ´ 5 cm ´
2 cm block has a mass of 180 grams. What is the density of this block?
|
|
|
31.
|
The volume of water in a graduated cylinder is 75 mL. After a small rock is
placed in the cylinder, the volume increases to 86 mL. What is the volume of the rock?
|
|
|
32.
|
A small plastic button has a density of 2,000 kg/m3. If the mass of
this button is 1.0 grams, what is the volume of the button? Be careful with the units!
|