Question 1

Suppose a thermometer has marks at every one degree increment and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks.We should properly report the temperature measurement as

Accepted Answer

A)  25°C
B)  26°C
C)  25.5°C
D)  25.50°C
E)  25.55°C

Question 2

The correct number of significant figures in the number 0.002320 is:

Accepted Answer

A)  7
B)  4
C)  3
D)  ambiguous
E)  none of the above

Question 3

The number 0.010100 has five significant figures.

Accepted Answer

A) True 
 B)False

Question 4

What is the standard SI unit for length?

Accepted Answer

A)  mile
B)  centimeter
C)  foot
D)  meter
E)  none of the above

Question 5

What is the volume of 12.8 g of a liquid that has a density of 0.789 g/mL?

Accepted Answer

A)  12.8 mL
B)  16.2 mL
C)  10.7 mL
D)  13.6 mL
E)  none of the above

Question 6

How many grams are in 1.48 × 107 μg?

Accepted Answer

A)  1.48 × 103
B)  1.48 × 1013
C)  1.48
D)  14.8
E)  none of the above

Question 7

The correct decimal representation of 6.453 × 103 is:

Accepted Answer

A)  6,453
B)  0.006453
C)  6.5 × 103
D)  6.453
E)  none of the above

Question 8

The prefix micro represents the multiplier 0.001.

Accepted Answer

A) True 
 B)False

Question 9

A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams.Will the block float in water and why?

Accepted Answer

A)  Yes,because the density of the block is 1.3 g/mL which is less than the density of water.
B)  Yes,because the density of the block is 0.80 g/mL which is less than the density of water.
C)  No,because the density of the block is 1.3 g/mL which is greater than the density of water.
D)  No,because the density of the block is 0.80 g/mL which is greater than the density of water.
E)  none of the above

Question 10

Determine the answer to the following equation with correct number of significant figures:
(17.103 + 2.03) × 1.02521 = ________

Accepted Answer

A)  19.6153
B)  19.62
C)  19.6
D)  20
E)  none of the above

Question 11

All solids have the same density.

Accepted Answer

A) True 
 B)False

Question 12

Zeros located between two numbers are not significant.

Accepted Answer

A) True 
 B)False

Question 13

How many inches are in 6.32 cm?

Accepted Answer

A)  16.1
B)  2.49
C)  3.78
D)  8.86
E)  none of the above

Question 14

A conversion factor is a fraction with one unit on top and a different unit on the bottom.

Accepted Answer

A) True 
 B)False

Question 15

Given the following list of densities,which materials would float in a molten vat of lead provided that they do not themselves melt? Densities (g/mL) : lead = 11.4,glass = 2.6,gold = 19.3,charcoal = 0.57,platinum = 21.4.

Accepted Answer

A)  gold and platinum
B)  glass and charcoal
C)  gold,platinum,glass and coal
D)  gold and charcoal
E)  none of the above

Question 16

The exponential 104 is equal to which decimal number?

Accepted Answer

A)  10,000
B)  1
C)  10
D)  100
E)  none of the above

Question 17

The correct multiplier for the prefix micro is:

Accepted Answer

A)  103
B)  10-6
C)  10-9
D)  106
E)  none of the above

Question 18

When the number 2.35 is rounded to contain 2 significant figures it becomes 2.4.

Accepted Answer

A) True 
 B)False

Question 19

How many significant digits should be reported in the answer to the following calculation? 
=

Accepted Answer

A)  3
B)  4
C)  2
D)  5
E)  none of the above

Question 20

The mass of an object,4.55 × 10-3 g,expressed in decimal notation is 0.000455 g.

Accepted Answer

A) True 
 B)False

Exam 2: Measurement and Problem Solving

What is the volume of 12.8 g of a liquid that has a density of 0.789 g/mL?

Correct AnswerverifiedShow Answer

How many significant digits should be reported in the answer to the following calculation? =

Correct AnswerverifiedShow Answer

Determine the answer to the following equation with correct number of significant figures: (17.103 + 2.03) × 1.02521 = ________

Correct AnswerverifiedShow Answer

How many inches are in 6.32 cm?

Correct AnswerverifiedShow Answer

Given the following list of densities,which materials would float in a molten vat of lead provided that they do not themselves melt? Densities (g/mL) : lead = 11.4,glass = 2.6,gold = 19.3,charcoal = 0.57,platinum = 21.4.

Correct AnswerverifiedShow Answer

A conversion factor is a fraction with one unit on top and a different unit on the bottom.

Correct AnswerverifiedShow Answer

All solids have the same density.

Correct AnswerverifiedShow Answer

The correct multiplier for the prefix micro is:

Correct AnswerverifiedShow Answer

The correct number of significant figures in the number 0.002320 is:

Correct AnswerverifiedShow Answer

A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams.Will the block float in water and why?

Correct AnswerverifiedShow Answer

The number 0.010100 has five significant figures.

Correct AnswerverifiedShow Answer

Zeros located between two numbers are not significant.

Correct AnswerverifiedShow Answer

How many grams are in 1.48 × 107 μg?

Correct AnswerverifiedShow Answer

The correct decimal representation of 6.453 × 103 is:

Correct AnswerverifiedShow Answer

Suppose a thermometer has marks at every one degree increment and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks.We should properly report the temperature measurement as

Correct AnswerverifiedShow Answer

The prefix micro represents the multiplier 0.001.

Correct AnswerverifiedShow Answer

The exponential 104 is equal to which decimal number?

Correct AnswerverifiedShow Answer

What is the standard SI unit for length?

Correct AnswerverifiedShow Answer

The mass of an object,4.55 × 10-3 g,expressed in decimal notation is 0.000455 g.

Correct AnswerverifiedShow Answer

When the number 2.35 is rounded to contain 2 significant figures it becomes 2.4.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How many grams are in 1.48 × 10⁷ μg?

Correct Answer
verified

The correct decimal representation of 6.453 × 10³ is:

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The exponential 10⁴ is equal to which decimal number?

Correct Answer
verified

Correct Answer
verified

The mass of an object,4.55 × 10^-3 g,expressed in decimal notation is 0.000455 g.

Correct Answer
verified

Correct Answer
verified