Question 1

Metals expand to a larger volume when heated.If a piece of metal was heated,which one of the following statements would be TRUE?

Accepted Answer

A) The newly calculated density value of the metal would not change from the initial value. 
B) The newly calculated density value would decrease. 
C) The newly calculated density value would increase. 
D) The mass of the metal would also increase. 
E) none of the above 
A) The newly calculated density value of the metal would not change from the initial value. 
B) The newly calculated density value would decrease. 
C) The newly calculated density value would increase. 
D) The mass of the metal would also increase. 
E) none of the above

Question 2

Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 = ________

Accepted Answer

A) 2.148 
B) 2.15 
C) 2.1 
D) 2.2 
E) none of the above 
A) 2.148 
B) 2.15 
C) 2.1 
D) 2.2 
E) none of the above

Question 3

When the temperature of an object is reported as 23.7°C,the actual temperature can be assumed to be between 23.6°C and 23.8°C.

Accepted Answer

A) True 
 B)False

Question 4

The correct prefix for the multiplier 0.1 is:

Accepted Answer

A) tera. 
B) deci. 
C) femto. 
D) pico. 
E) none of the above 
A) tera. 
B) deci. 
C) femto. 
D) pico. 
E) none of the above

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

You do not need to write units in calculations as long as you can remember them.

Accepted Answer

A) True 
 B)False

Question 7

The distance from New York City to Washington,DC is approximately 235 miles.Identify the correct solution map to convert from miles to kilometers using the prefix multipliers and the given conversion factors: 1 mile = 5280 ft; 1 ft = 12 in; 1 in = 2.54 cm.

Accepted Answer

A) 235 mile ×   ×   ×   ×   ×   
B) 235 mile ×   ×   ×   ×   ×   
C) 235 mile ×   ×   ×   ×   ×   
D) 235 mile ×   ×   ×   ×   
E) 235 mile ×   ×   ×   ×   
A) 235 mile ×   ×   ×   ×   ×   
B) 235 mile ×   ×   ×   ×   ×   
C) 235 mile ×   ×   ×   ×   ×   
D) 235 mile ×   ×   ×   ×   
E) 235 mile ×   ×   ×   ×

Question 8

The base unit of mass in the SI system is the kg.

Accepted Answer

A) True 
 B)False

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

The number 7.20 × 103 contains three significant figures.

Accepted Answer

A) True 
 B)False

Question 11

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

Metals expand to a larger volume when heated.If a piece of metal was heated,which one of the following statements would be TRUE?

Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 = ________

When the temperature of an object is reported as 23.7°C,the actual temperature can be assumed to be between 23.6°C and 23.8°C.

The correct prefix for the multiplier 0.1 is:

How many cm³ are there in 2.5 m³?

You do not need to write units in calculations as long as you can remember them.

The distance from New York City to Washington,DC is approximately 235 miles.Identify the correct solution map to convert from miles to kilometers using the prefix multipliers and the given conversion factors: 1 mile = 5280 ft; 1 ft = 12 in; 1 in = 2.54 cm.

The base unit of mass in the SI system is the kg.

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?

The number 7.20 × 10³ contains three significant figures.

How many inches are in 25.8 cm?

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Exam 2: Measurement and Problem Solving

Metals expand to a larger volume when heated.If a piece of metal was heated,which one of the following statements would be TRUE?

Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 = ________

When the temperature of an object is reported as 23.7°C,the actual temperature can be assumed to be between 23.6°C and 23.8°C.

The correct prefix for the multiplier 0.1 is:

How many cm3 are there in 2.5 m3?

You do not need to write units in calculations as long as you can remember them.

The distance from New York City to Washington,DC is approximately 235 miles.Identify the correct solution map to convert from miles to kilometers using the prefix multipliers and the given conversion factors: 1 mile = 5280 ft; 1 ft = 12 in; 1 in = 2.54 cm.

The base unit of mass in the SI system is the kg.

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?

The number 7.20 × 103 contains three significant figures.

How many inches are in 25.8 cm?

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

How many cm³ are there in 2.5 m³?

The number 7.20 × 10³ contains three significant figures.