Question 1

Given the calculation: 4.238 × 9.1 = ? What is the answer reported to the correct number of significant figures?

Accepted Answer

A)  38.5658 
B)  38.57 
C)  38.6 
D)  39 
A)  38.5658 
B)  38.57 
C)  38.6 
D)  39

Question 2

The dimensions of a room are typically given in feet, but carpeting is sold by the square yard. How many square yards of carpet are required to cover the floor of a room which is 12 feet by 18 feet?

Accepted Answer

A)  12 square yards 
B)  18 square yards 
C)  24 square yards 
D)  220 square yards 
A)  12 square yards 
B)  18 square yards 
C)  24 square yards 
D)  220 square yards

Question 3

Which of the following objects has the largest kinetic energy?

Accepted Answer

A)  a 1.00 gram object moving at 1.0 cm/sec 
B)  a 0.25 gram object moving at 2.0 cm/sec 
C)  a 16.00 gram object moving at 0.25 cm/sec 
D)  They all have the same kinetic energy. 
A)  a 1.00 gram object moving at 1.0 cm/sec 
B)  a 0.25 gram object moving at 2.0 cm/sec 
C)  a 16.00 gram object moving at 0.25 cm/sec 
D)  They all have the same kinetic energy.

Question 4

The Law of Conservation of Energy states which of the following?

Accepted Answer

A)  energy cannot be converted from one form to another 
B)  kinetic energy is conserved 
C)  potential energy is conserved 
D)  none of the above 
A)  energy cannot be converted from one form to another 
B)  kinetic energy is conserved 
C)  potential energy is conserved 
D)  none of the above

Question 5

Which of the following represents a physical change?

Accepted Answer

A)  stretching a silver wire 
B)  tarnishing of silver 
C)  both a and b 
D)  neither a nor b 
A)  stretching a silver wire 
B)  tarnishing of silver 
C)  both a and b 
D)  neither a nor b

Question 6

How many milligrams (mg) are there is 1 kilogram (kg)?

Accepted Answer

A)  1 × 10-12 
B)  1 × 10-6 
C)  1 × 106 
D)  1 × 101 
A)  1 × 10-12 
B)  1 × 10-6 
C)  1 × 106 
D)  1 × 101

Question 7

Nanoparticles which have a length of approximately 1 × 10 - 9 meters. Which of the following is the correct way to write this in conventional notation?

Accepted Answer

A)  0.0000000001 m 
B)  0.000000001 m 
C)  10,000,000 m 
D)  1,000,000,000 m 
A)  0.0000000001 m 
B)  0.000000001 m 
C)  10,000,000 m 
D)  1,000,000,000 m

Question 8

On a stove we have two pots of boiling water. Pot 1 contains 1 liter of water and pot 2 contains 2 liters of water. Which of the following statements is true?

Accepted Answer

A)  Pot 2 is hotter than pot 1. 
B)  Pot 2 has a larger heat content than pot 1. 
C)  both a and b 
D)  neither a nor b 
A)  Pot 2 is hotter than pot 1. 
B)  Pot 2 has a larger heat content than pot 1. 
C)  both a and b 
D)  neither a nor b

Question 9

During its orbit the earth's maximum distance from the sun is approximately 152 million kilometers. Which of the following is the correct way to express this number in scientific notation?

Accepted Answer

A)  1.52 × 105 
B)  1.52 × 106 
C)  1.52 × 107 
D)  1.52 × 108 
A)  1.52 × 105 
B)  1.52 × 106 
C)  1.52 × 107 
D)  1.52 × 108

Question 10

How many kilometers (km) are there in 1 millimeter (mm)?

Accepted Answer

A)  1 × 10-12 
B)  1 × 10-6 
C)  1 × 106 
D)  1 × 1012 
A)  1 × 10-12 
B)  1 × 10-6 
C)  1 × 106 
D)  1 × 1012

Question 11

How many microliters (μL) are there in 1 milliliter (mL)?

Accepted Answer

A)  1 × 10-6 
B)  1 × 10-3 
C)  1 × 103 
D)  1 × 106 
A)  1 × 10-6 
B)  1 × 10-3 
C)  1 × 103 
D)  1 × 106

Question 12

At the 2008 Olympics the Jamaican runner Shelly Ann Fraser ran the 100. meter dash in world record time of 10.78 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]

Accepted Answer

A)  2.08 mph 
B)  4.81 mph 
C)  20.8 mph 
D)  48.1 mph 
A)  2.08 mph 
B)  4.81 mph 
C)  20.8 mph 
D)  48.1 mph

Question 13

The land surface area of the earth is approximately 1.49 × 108 km2. Which of the following is the correct way to write this in conventional notation?

Accepted Answer

A)  0.00000000149 km2 
B)  149,000,000 km2 
C)  14,900,000,000 km2 
D)  none of these 
A)  0.00000000149 km2 
B)  149,000,000 km2 
C)  14,900,000,000 km2 
D)  none of these

Question 14

The specific heat of lead is 0.0380 cal/g·°C. If 47.0 calories of energy raised the temperature of a lead sample from 28.3°C to 30.1°C what is the mass of the sample?

Accepted Answer

A)  26 g 
B)  687 g 
C)  1.2 × 103 g 
D)  2.3 × 103 g 
A)  26 g 
B)  687 g 
C)  1.2 × 103 g 
D)  2.3 × 103 g

Question 15

How many minutes are in a 365 day year? [Assume exactly 24 hours in a day]

Accepted Answer

A)  8.760 × 103 
B)  2.190 × 104 
C)  5.256 × 105 
D)  3.154 × 107 
A)  8.760 × 103 
B)  2.190 × 104 
C)  5.256 × 105 
D)  3.154 × 107

Question 16

Aluminum has a density of 2.70 g/ cm3. What volume is occupied by a block of aluminum which weighs 4.32 kg?

Accepted Answer

A)  0.000625 cm3 
B)  0.625 cm3 
C)  1.60 cm3 
D)  1.60 L 
A)  0.000625 cm3 
B)  0.625 cm3 
C)  1.60 cm3 
D)  1.60 L

Question 17

A can of soda has a volume of 355 mL. The area of a circle is given as A =   r2, where r is the radius of the circle, so the volume of the can is given by V = (   r2)h, where h is the height of the can. If a particular can has a height of 12.2 cm what is the radius of the can?

Accepted Answer

A)  3.04 mm 
B)  3.04 cm 
C)  9.26 mm 
D)  9.26 cm 
A)  3.04 mm 
B)  3.04 cm 
C)  9.26 mm 
D)  9.26 cm

Question 18

At the 2008 Olympics the Jamaican runner Usain Bolt ran the 200. meter dash in world record time of 19.30 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]

Accepted Answer

A)  43.1 mph 
B)  23.2 mph 
C)  4.31 mph 
D)  2.32 mph 
A)  43.1 mph 
B)  23.2 mph 
C)  4.31 mph 
D)  2.32 mph

Question 19

Given the calculation: (7.22 × 10 -3) × (6.4 × 10 7) = ?, what is the answer reported to the correct number of significant figures?

Accepted Answer

A)  4.6 × 105 
B)  4.62 × 105 
C)  4.620 × 105 
D)  4.6208 × 105 
A)  4.6 × 105 
B)  4.62 × 105 
C)  4.620 × 105 
D)  4.6208 × 105

Question 20

If a certain amount of heat is added to a 30.0 gram sample of water the temperature of the sample increases from 27.0°C to 57.0°C. If this same amount of heat is added to a 90.0 gram sample of water initially at 40.0°C what will be the final temperature of the water?

Accepted Answer

A)  30.0°C 
B)  50.0°C 
C)  70.0°C 
D)  90.0°C 
A)  30.0°C 
B)  50.0°C 
C)  70.0°C 
D)  90.0°C

Exam 1: Matter, Energy, and Measurement

Given the calculation: 4.238 × 9.1 = ? What is the answer reported to the correct number of significant figures?

The dimensions of a room are typically given in feet, but carpeting is sold by the square yard. How many square yards of carpet are required to cover the floor of a room which is 12 feet by 18 feet?

Which of the following objects has the largest kinetic energy?

The Law of Conservation of Energy states which of the following?

Which of the following represents a physical change?

How many milligrams (mg) are there is 1 kilogram (kg)?

Nanoparticles which have a length of approximately 1 × 10 - 9 meters. Which of the following is the correct way to write this in conventional notation?

On a stove we have two pots of boiling water. Pot 1 contains 1 liter of water and pot 2 contains 2 liters of water. Which of the following statements is true?

During its orbit the earth's maximum distance from the sun is approximately 152 million kilometers. Which of the following is the correct way to express this number in scientific notation?

How many kilometers (km) are there in 1 millimeter (mm)?

How many microliters (μL) are there in 1 milliliter (mL)?

At the 2008 Olympics the Jamaican runner Shelly Ann Fraser ran the 100. meter dash in world record time of 10.78 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]

The land surface area of the earth is approximately 1.49 × 108 km2. Which of the following is the correct way to write this in conventional notation?

The specific heat of lead is 0.0380 cal/g·°C. If 47.0 calories of energy raised the temperature of a lead sample from 28.3°C to 30.1°C what is the mass of the sample?

How many minutes are in a 365 day year? [Assume exactly 24 hours in a day]

Aluminum has a density of 2.70 g/ cm3. What volume is occupied by a block of aluminum which weighs 4.32 kg?

A can of soda has a volume of 355 mL. The area of a circle is given as A = r2, where r is the radius of the circle, so the volume of the can is given by V = ( r2)h, where h is the height of the can. If a particular can has a height of 12.2 cm what is the radius of the can?

At the 2008 Olympics the Jamaican runner Usain Bolt ran the 200. meter dash in world record time of 19.30 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]

Given the calculation: (7.22 × 10 -3) × (6.4 × 10 7) = ?, what is the answer reported to the correct number of significant figures?

If a certain amount of heat is added to a 30.0 gram sample of water the temperature of the sample increases from 27.0°C to 57.0°C. If this same amount of heat is added to a 90.0 gram sample of water initially at 40.0°C what will be the final temperature of the water?

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Nanoparticles which have a length of approximately 1 × 10 ^{- 9} meters. Which of the following is the correct way to write this in conventional notation?

The land surface area of the earth is approximately 1.49 × 10⁸ km². Which of the following is the correct way to write this in conventional notation?

Aluminum has a density of 2.70 g/ cm³. What volume is occupied by a block of aluminum which weighs 4.32 kg?

A can of soda has a volume of 355 mL. The area of a circle is given as A = r², where r is the radius of the circle, so the volume of the can is given by V = ( r²)h, where h is the height of the can. If a particular can has a height of 12.2 cm what is the radius of the can?

Given the calculation: (7.22 × 10 ^-3) × (6.4 × 10 ⁷) = ?, what is the answer reported to the correct number of significant figures?