Question 1

How many significant figures are in the number 2903?

Accepted Answer

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

Question 2

What is the volume of a cube with dimensions 11.0 cm × 11.0 cm × 11.0 cm in m3?

Accepted Answer

A) 1.331 × 10-3 
B) 1.33 × 103 
C) 1.33 × 10-3 
D) 1.3 × 103 
E) none of the above 
A) 1.331 × 10-3 
B) 1.33 × 103 
C) 1.33 × 10-3 
D) 1.3 × 103 
E) none of the above

Question 3

The wavelength of blue light is 0.00000045 m.Express this wavelength in scientific notation.

Accepted Answer

A) 4.5 ×  
M 
B) 4.5 ×  
M 
C) 4.5 ×  
M 
D) 4.5 ×  
M 
E) 0.45 ×  
M 
A) 4.5 ×  
M 
B) 4.5 ×  
M 
C) 4.5 ×  
M 
D) 4.5 ×  
M 
E) 0.45 ×  
M

Question 4

The decimal number 0.0210 expressed in scientific notation is 2.10 × 10-2.

Accepted Answer

A) True 
 B)False

Question 5

How many cm3 are there in 2.5 m3?

Accepted Answer

A) 2.5 × 106 
B) 2.5 × 10-2 
C) 2.5 × 102 
D) 2.5 × 10-6 
E) none of the above 
A) 2.5 × 106 
B) 2.5 × 10-2 
C) 2.5 × 102 
D) 2.5 × 10-6 
E) none of the above

Question 6

The decimal value 10 is equal to which exponential?

Accepted Answer

A)    
B)    
C)    
D)    
E) none of the above 
A)    
B)    
C)    
D)    
E) none of the above

Question 7

How would the number 8,155 be written in scientific notation?

Accepted Answer

A)    
B)    
C)    
D)    
E) none of the above 
A)    
B)    
C)    
D)    
E) none of the above

Question 8

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 
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 9

The common English unit in which the speed of an automobile is expressed is miles/hr.What is the set of base SI units for speed?

Accepted Answer

A) mile/s 
B) km/hr 
C) km/s 
D) m/s 
E) none of the above 
A) mile/s 
B) km/hr 
C) km/s 
D) m/s 
E) none of the above

Question 10

How many significant figures should be reported in the answer to the following calculation?
(8.50)× (29.0)× (1.0947)=

Accepted Answer

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

Question 11

Conversion factors are constructed from any two quantities known to be equivalent.

Accepted Answer

A) True 
 B)False

Question 12

The prefix micro represents the multiplier 0.001.

Accepted Answer

A) True 
 B)False

Question 13

What is the base SI unit for length?

Accepted Answer

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

Question 14

There are 1000 kilometers in one meter.

Accepted Answer

A) True 
 B)False

Question 15

An object weighing 1.840 kg has a volume of 0.0015 m3.What is the density of the object in g/cm3?

Accepted Answer

A) 1.2 
B) 0.0012 
C) 0.82 
D) 0.0028 
E) none of the above 
A) 1.2 
B) 0.0012 
C) 0.82 
D) 0.0028 
E) none of the above

Question 16

When the value 4.449 is rounded to two significant figures,the number should be reported as:

Accepted Answer

A) 4.4 
B) 4.5 
C) 4.44 
D) 4.45 
E) none of the above 
A) 4.4 
B) 4.5 
C) 4.44 
D) 4.45 
E) none of the above

Question 17

The prefix micro represents which multiplier?

Accepted Answer

A) 0.000001 
B) 1,000,000 
C) 0.001 
D) 1,000 
E) none of the above 
A) 0.000001 
B) 1,000,000 
C) 0.001 
D) 1,000 
E) none of the above

Question 18

How many inches are in 25.8 cm?

Accepted Answer

A) 0.10 
B) 28.3 
C) 0.0984 
D) 10.2 
E) none of the above 
A) 0.10 
B) 28.3 
C) 0.0984 
D) 10.2 
E) none of the above

Question 19

The number 0.010100 has five significant figures.

Accepted Answer

A) True 
 B)False

Question 20

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

How many significant figures are in the number 2903?

What is the volume of a cube with dimensions 11.0 cm × 11.0 cm × 11.0 cm in m³?

The wavelength of blue light is 0.00000045 m.Express this wavelength in scientific notation.

The decimal number 0.0210 expressed in scientific notation is 2.10 × 10^-2.

How many cm³ are there in 2.5 m³?

The decimal value 10 is equal to which exponential?

How would the number 8,155 be written in scientific notation?

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?

The common English unit in which the speed of an automobile is expressed is miles/hr.What is the set of base SI units for speed?

How many significant figures should be reported in the answer to the following calculation? (8.50)× (29.0)× (1.0947)=

Conversion factors are constructed from any two quantities known to be equivalent.

The prefix micro represents the multiplier 0.001.

What is the base SI unit for length?

There are 1000 kilometers in one meter.

An object weighing 1.840 kg has a volume of 0.0015 m³.What is the density of the object in g/cm³?

When the value 4.449 is rounded to two significant figures,the number should be reported as:

The prefix micro represents which multiplier?

How many inches are in 25.8 cm?

The number 0.010100 has five significant figures.

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

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Exam 2: Measurement and Problem Solving

How many significant figures are in the number 2903?

What is the volume of a cube with dimensions 11.0 cm × 11.0 cm × 11.0 cm in m3?

The wavelength of blue light is 0.00000045 m.Express this wavelength in scientific notation.

The decimal number 0.0210 expressed in scientific notation is 2.10 × 10-2.

How many cm3 are there in 2.5 m3?

The decimal value 10 is equal to which exponential?

How would the number 8,155 be written in scientific notation?

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?

The common English unit in which the speed of an automobile is expressed is miles/hr.What is the set of base SI units for speed?

How many significant figures should be reported in the answer to the following calculation? (8.50)× (29.0)× (1.0947)=

Conversion factors are constructed from any two quantities known to be equivalent.

The prefix micro represents the multiplier 0.001.

What is the base SI unit for length?

There are 1000 kilometers in one meter.

An object weighing 1.840 kg has a volume of 0.0015 m3.What is the density of the object in g/cm3?

When the value 4.449 is rounded to two significant figures,the number should be reported as:

The prefix micro represents which multiplier?

How many inches are in 25.8 cm?

The number 0.010100 has five significant figures.

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

The Chemical World

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids,solids,and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

What is the volume of a cube with dimensions 11.0 cm × 11.0 cm × 11.0 cm in m³?

The decimal number 0.0210 expressed in scientific notation is 2.10 × 10^-2.

How many cm³ are there in 2.5 m³?

An object weighing 1.840 kg has a volume of 0.0015 m³.What is the density of the object in g/cm³?