Question 1

At what temperature does the Fahrenheit reading equal twice the Celsius temperature?

Accepted Answer

A)  160°C, 320°F 
B)  12°C, 24°F 
C)  -12°C, -24°F 
D)  -288°C, -576°F 
E)  40°C, 80°F

Question 2

A 14-karat gold ring contains 58.3% gold and weighs 12.41 g. If gold sells for $308.00/ounce, what is the value of the gold in the ring?

Accepted Answer

A)  $116 
B)  $135 
C)  $231 
D)  $58.90 
E)  $78.60

Question 3

Choose the INCORRECT statement.

Accepted Answer

A)  Matter is made of tiny units called atoms. 
B)  An element is a substance made of one type of atom. 
C)  A compound contains regions that are unlike other regions of the compound. 
D)  Homogeneous mixtures are solutions. 
E)  Elements and compounds are substances.

Question 4

Choose the INCORRECT statement.

Accepted Answer

A)  A natural law is a generalization of natural phenomena. 
B)  A hypothesis is a conclusion that must follow logically from observations of nature. 
C)  A theory is a model of nature that can be used to describe natural phenomena. 
D)  An experiment is a test of conclusions about natural law. 
E)  The scientific method is the combination of observations, experimentation, and the formulation of laws, hypothesis, and theories.

Question 5

Which of the following defines or expresses the concept of accuracy?

Accepted Answer

A)  the closest value to the expected answer 
B)  deviation of the average 
C)  average of the data 
D)  reproducibility of a measurement 
E)  difference between the accepted answer and the average value of the data

Question 6

Which of the following is a physical change?

Accepted Answer

A)  the freezing of water to form ice 
B)  the burning of paper 
C)  the mixing of salt and water 
D)  the reaction of zinc with hydrochloric acid 
E)  the inability of gold to react with water

Question 7

Sulfur dioxide gas is:

Accepted Answer

A)  a homogeneous mixture 
B)  a compound 
C)  an element 
D)  a heterogeneous mixture 
E)  a solid at room temperature

Question 8

Which statement is INCORRECT?

Accepted Answer

A)  Natural laws are concise statements about natural phenomena. 
B)  Induction is to infer a set of naturals laws from a set of observations. 
C)  The key to the scientific method is valid assumptions. 
D)  A hypothesis is a tentative explanation of a natural law. 
E)  A pattern of thinking is known as a paradigm.

Question 9

One inch is equal to:

Accepted Answer

A)  2.54 cm 
B)  2.54 m 
C)  1/(2.54) cm 
D)  1.09 m 
E)  100 cm

Question 10

Calculate the density in g/cm3 of a 15 lb block of aluminum with a displacement volume of 0.6657 U.S. gal.

Accepted Answer

A)  22.5 g/cm3 
B)  11.47 g/cm3 
C)  0.371 g/cm3 
D)  2.25 g/cm3 
E)  2.70 g/cm3

Question 11

Which of the following is a compound?

Accepted Answer

A)  water 
B)  oxygen 
C)  heat 
D)  salad dressing 
E)  nitrogen

Question 12

1.00 oz of gold (density = 19.3 g/mL) can be hammered into a sheet that would cover a 1.00 x 102 ft2 area. How thick would such a sheet be in centimeters?

Accepted Answer

A)  1.58 × 10-5 cm 
B)  4.82 × 10-4 cm 
C)  4.02 × 10-5 cm 
D)  6.33 × 104 cm 
E)  2.11 × 10-5 cm

Question 13

A chemical change always involves a change in: I) appearance
II) state
III) composition
IV) temperature

Accepted Answer

A)  I and II 
B)  I, II, IV 
C)  III only 
D)  II and IV 
E)  all of the above

Question 14

A field is 100.0 yd long and 50.0 yd wide. If covered with water to a uniform depth of 2.00 in, what volume of water is present in U.S. gallons?

Accepted Answer

A)  8.70 × 103 gal 
B)  5.61 × 104 gal 
C)  5.31 × 104 gal 
D)  2.42 × 102 gal 
E)  1.56 × 103 gal

Question 15

What is the correct number of significant figures in the answer to the following multiplication? 1.022 × 0.0011

Accepted Answer

A)  one 
B)  three 
C)  four 
D)  two 
E)  cannot be determined

Question 16

The SI unit of mass is 1 gram.

Accepted Answer

A) True 
 B)False

Question 17

A weatherman incorrectly stated that the temperature was 85°F, 35°C. If the Fahrenheit temperature was correct, how far off was the Celsius temperature?

Accepted Answer

A)  8°C 
B)  6°C 
C)  29°C 
D)  31°C 
E)  3°C

Question 18

If the density of aviation fuel is 1.77 lb/L, how many liters must be added to a tank to give 16,131 kg?

Accepted Answer

A)  2.01 x 104 L 
B)  9.11 x 103 L 
C)  1.30 x 103 L 
D)  1.61 x 104 L 
E)  1.30 x 104 L

Question 19

A homogenous mixture has regions that are different in composition or phase.

Accepted Answer

A) True 
 B)False

Question 20

During a winter blizzard the temperature was -20°F. What temperature is this on the Celsius scale?

Accepted Answer

A)  -29°C 
B)  -94°C 
C)  -6.2°C 
D)  -22°C 
E)  -20°C

Exam 1: Matter - Its Properties and Measurement

At what temperature does the Fahrenheit reading equal twice the Celsius temperature?

A 14-karat gold ring contains 58.3% gold and weighs 12.41 g. If gold sells for $308.00/ounce, what is the value of the gold in the ring?

Choose the INCORRECT statement.

Choose the INCORRECT statement.

Which of the following defines or expresses the concept of accuracy?

Which of the following is a physical change?

Sulfur dioxide gas is:

Which statement is INCORRECT?

One inch is equal to:

Calculate the density in g/cm3 of a 15 lb block of aluminum with a displacement volume of 0.6657 U.S. gal.

Which of the following is a compound?

1.00 oz of gold (density = 19.3 g/mL) can be hammered into a sheet that would cover a 1.00 x 10² ft2 area. How thick would such a sheet be in centimeters?

A chemical change always involves a change in: I) appearance II) state III) composition IV) temperature

A field is 100.0 yd long and 50.0 yd wide. If covered with water to a uniform depth of 2.00 in, what volume of water is present in U.S. gallons?

What is the correct number of significant figures in the answer to the following multiplication? 1.022 × 0.0011

The SI unit of mass is 1 gram.

A weatherman incorrectly stated that the temperature was 85°F, 35°C. If the Fahrenheit temperature was correct, how far off was the Celsius temperature?

If the density of aviation fuel is 1.77 lb/L, how many liters must be added to a tank to give 16,131 kg?

A homogenous mixture has regions that are different in composition or phase.

During a winter blizzard the temperature was -20°F. What temperature is this on the Celsius scale?