Water’s the Matter
Unit 1: Measuring Mass
Pre-Test---Answer Key
1.
Mass is best described as _______________________. (Objective 1; answer C)
A.
B.
C.
D.
E.
2.
Volume is best described as
A.
B.
C.
D.
E.
3.
. (Objective 1; answer D)
how much an object weighs.
how much matter is dissolved in water.
how much matter is in an object.
how much space an object occupies.
how fast an object is moving.
Which of the following statements concerning measuring volume enables one to
determine volume most directly? (Objective 2; answer C)
A.
B.
C.
D.
E.
4.
how much an object weighs.
how large an object is.
how much matter is in an object.
how much space an object occupies.
how fast an object is moving.
measuring volume only applies to fluids, such as water.
measurements of volume can change due to changes in gravity.
volume has three dimensions: length, width, & height.
measurement of volume determines how much matter is in an object.
volume has four variables: length, width, mass, & density
Using the metric system, mass is often measured in units of
(Objective 2; answer A)
A.
B.
C.
D.
E.
grams.
liters.
grams/liter.
ounces.
pounds.
.
5.
If you were to weigh a pencil on Earth, then weigh it again on the Moon, which of
the following results would you expect? (Objective 1; answer E)
A.
B.
C.
D.
E.
6.
In order to measure the volume of a solid object you could: (Objective 2; answer
B)
A.
B.
C.
D.
E.
7.
weigh it on a scale and covert grams into liters.
immerse it in water and measure the amount of water it displaces.
measure its temperature with a thermometer.
determine how rapidly it falls from a known height.
place it in a beaker and measure its volume by using the scale on the side
of the beaker.
Which of the following solutions would have the highest concentration of sugar?
(Objective 2; answer B)
A.
B.
C.
D.
E.
8.
The mass of the pencil would decrease by 1/6 on the Moon as compared to
Earth.
The volume of the pencil would decrease by 1/6 on the Moon as compared
to Earth.
The mass of the pencil would decrease by 1/6 on the Moon, but the
volume would remain unchanged.
The volume of the pencil would decrease by 1/6 on the Moon, but the
mass would remain unchanged.
Neither the mass nor the volume of the pencil would change.
one gram of sugar in one liter
one milligram of sugar in one liter
one kilogram of sugar in one liter
one milligram of sugar in one milliliter
one kilogram of sugar in one kiloliter
If gravity were to increase,
answer B)
A.
B.
C.
D.
E.
mass
weight
volume
size
concentration
would also increase. (Objective 1;
9.
Billy is treating a nearby pond with a chemical to neutralize pesticide
contamination. To be effective, the concentration of the chemical needs to be 3
mg of chemical in 1 liter of volume. If he wants to treat 500 L of pond, how
much chemical does Billy need to add? (Objective 3; answer B)
A.
B.
C.
D.
E.
10.
Billy is treating a nearby pond with a chemical to neutralize pesticide
contamination. To be effective, the concentration of the chemical needs to be 3
mg of chemical in 1 liter of volume. If he has 45 grams of the chemical, how
much water can he treat? (Objective 3; answer D)
A.
B.
C.
D.
E.
11.
15 L
150 L
1,500 L
15,000 L
150,000 L
Billy is treating a nearby pond with a chemical to neutralize pesticide
contamination. Because of a dry winter, the volume of water in the pond is lower
than it was the previous year. Billy added the chemical he needed to treat 1000liters of pond water to contained 3 mg of chemical in 1 liter. As a result, the pond
water contained 4 mg of chemical in 1 liter. How much water was lost from the
pond during the dry weather? (Objective 3; answer B)
A.
B.
C.
D.
E.
12.
15 mg
1.5 g
15 g
16.7 g
167 g
133 L
250 L
500 L
750 L
1333 L
Billy’s little brother decides that he, too, can treat pond water. He dumps 500 g of
chemicals in 500 L of pond water. If Billy were to measure the concentration of
his brother’s creation, what would it be? (Objective 3; answer D)
A.
B.
C.
D.
E.
0.5 mg/L
1 mg/L
5 mg/L
1 g/L
5 g/L
13.
Billy determines that chemical he is using to remove pesticides from pond water
actually works better at a concentration of 5 mg of chemical in 1 liter of volume
than a concentration of 3 mg of chemical in 1 liter as he used to use. If he has
1000-liter pond with 3 mg/L, he needs to add about
chemical to
make the concentration 5 mg/L. (Objective 3; answer C)
A.
B.
C.
D.
E.
1g
1.5 g
2g
3g
5g