Week 2
1. Graduated cylinders are marked in units of
a.
b.
c.
d.
Grams
Meters
Millimeters
Milliliters
2. Which is the metric unit for
measuring mass?
a.
b.
c.
d.
foot
pound
kilogram
ounce
3. Density is a good way to identify an object
because
a. Different masses of the same object will
always have different densities
b. Different masses of the same object will
always have the same density.
c. The same volume of the same object will
always have different densities.
d. The same masses of two different objects
will have the same density
4. Joseph measures out 25 mL of distilled water
for his chemistry experiment. How many liters
of water is this?
A.
B.
C.
D.
0.25 L
0.025 L
2.5 L
2.5 x 10-3 L
5. Identify the correct way to write 0.00542 in
scientific notation
A.
B.
C.
D.
5.42 X 10-3
5.42 X 10-4
5.42 X 102
5.42 X 104
6. A lizard has a mass of 0.98 grams.
What is the mass of the lizard in
milligrams?
A.
B.
C.
D.
.00098 mg
9.80 mg
98 mg
980 mg
7. Which property of matter is
determined by measuring the pull of
gravity on a sample of matter?
A.
B.
C.
D.
Weight
Mass
Volume
acceleration
8. A teacher gives a student a metal
bar. The teacher asks the student to
calculate the bar’s volume using the
formula V = l x w x h. The bar is 3.5 cm
long, 10 mm high, and 2.0 cm wide.
What is the volume of the bar in cm3?
A.
B.
C.
D.
0.7 cm3
7 cm3
70 cm3
700 cm3
9. Which of the following represents a
quantitative statement about the mass
of an object?
A. The object is heavier than wood
B. The mass of the object is 23.5 grams
C. The object’s mass indicates that it has a high
density
D. A balance can be used to quantitatively
determine the mass of an object.
10. The mass of a graduated cylinder and water is
68.0 g. After a stone was lowered into the
graduated cylinder, the water level rose 30.0 mL
and the mass of the cylinder, water and stone was
78.0 g. What is the density of the stone?
A. 2.00 g/mL
B. 10.0 g
C. 0.33 g/mL
D. 5.00 mL
Pre-lab questions:
1. What is the equation that relates density, mass, and volume?
2. How can we use density values to determine an unknown
substance?
3. Why do we need to measure irregularly shaped objects by water
displacement?
4. Why is it important that a wet object be dried before finding its
mass?
5. Why should you tilt a graduated cylinder when you drop in
objects?
6. Do any of the metals shown in the table have a density less than
water?
7. Copy down 2 data tables and label them “Table 1. Pre-1982
pennies” and “Table 2. Post-1982 pennies”.
Number of Pennies
5
10
15
20
25
Mass
(g)
Total Volume in
Cylinder (ml)
Actual Volume of
Pennies