Ch.1 Matter, Energy, and Measurement

The standard metric unit of volume, the liter, is equal to which of the following?

1000cm^3

What does the symbol "m" stand for?

10^-3

What does the symbol "u" stand for?

10^-6

How many milligrams (mg) are there in 1 microgram (ug)?

1x10^-3

How many liters (L) are there in 1 microliter (uL)?

1x10^-6

How many micrograms (ug) are there in 1 milligram (ug)?

1x10^3

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

1x10^3

How many microliters are there in 1 liter (L)?

1x10^6

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

1x10^6

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

24 square yards

Given the calculation: (7.22x10^-3)x(6.4x10^7) =?, what is the answer reported to the correct number of significant figures? a. 4.6x10^5 b. 4.62x10^5 c. 4.620x10^5 d. 4.6208x10^5

a. 4.6x10^5

The population of the earth at the end of 2008 was approximately 6.7x10^9 people. Which of the following is correct way to represent this number? a. 6,700,000,000 people b. 67,000,000,000 people c. 67,000,000,000,000 people d. none of these

a. 6,700,000,000 people

Which of the following is not an example of matter? a. God b. you c. a tree d. food

a. God

Which of the following represents a physical change? a. boiling water b. decomposition of a dead organism c. both a and b d. neither a nor b

a. boiling water

Which of the following represents a physical change? a. stretching a silver wire b. tarnishing of silver c. both a and b d. neither a nor b

a. stretching a silver wire

Nanoparticles have a length of approximately 1x10^-9 meters. Which of the following is the correct way to write this in conventional notation? a. 0.0000000001 m b. 0.000000001 m c. 10,000,000 m d. 1,000,000,000 m

b. 0.000000001 m

The land surface area of the earth is approximately 1.49x10^8 km^2. Which of the following is the correct way to write this in conventional notation? a. 0.00000000149 km^2 b. 149,000,000 km^2 c. 14,900,000,000 km^2 d. none of these

b. 149,000,000 km^2

Given the calculation: (6.49x10^7)x(7.1x10^5) =?, what is the answer reported to the correct number of significant figures? a. 4.6079x10^13 b. 4.6x10^13 c. 4.6x10^2 d. 4.6079x10^2

b. 4.6x10^13

Which of the following is synonymous with "fact"? a. a hypothesis b. an observation which is reproducible c. an observation which is not reproducible d. none of these

b. an observation which is reproducible

Which of the following is true about specific gravity of a material? a. it has units of g/mL b. it is defined as the density of the material divided by the density of water c. both a and b d. neither a nor b

b. it is defined as the material divided by the density of water

Which of the following represents a physical change? a. burning of fuel oil b. melting of ice c. both a and b d. neither a nor b

b. melting of ice

Which metric prefix is commonly abbreviated using a Greek letter? a. mega b. micro c. milli d. nano

b. micro

The area of Africa is approximately 11.7 million square miles. Which of the following is the correct way to express this number in scientific notation? a. 1.17x10^5 b. 1.17x10^6 c. 1.17x10^7 d. none of these

c. 1.17x10^7

How many millimeters (mm) are there in 1 kilometer (km)? a. 1x10^-12 b. 1x10^-6 c. 1x10^6 d. 1x10^12

c. 1x10^6

In one second light travels 2.998x10^8 meters. Which of the following is the correct way to write this in conventional notation? a. 0.00000002998 m/s b. 2,998,000 m/s c. 299,800,000 m/s d. none of these

c. 299,800,000 m/s

Given the calculation (6.626x10^-34)/(9.63x10^7)=?, what is the answer reported to the correct number of significant figures? a. 1.453x10^41 b. 1.45x10^41 c. 6.88x10^-42 d. 6.882x10^-42

c. 6.88x10^-42

Which of the following is a form of potential energy? a. chemical energy b. nuclear energy c. both a and b d. neither a nor b

c. both a and b

Which of the following statements is true? a. both heat and temperature are forms of energy b. neither heat nor temperature is a form of energy c. heat is a form of energy, but temperature is not d. temperature is a form of energy, but heat is not

c. heat is a form of energy, but temperature is not

Which of the following is true of the relationship between density expressed in g/mL and specific gravity? a. they have different numerical values and different units b. they have the same numerical value and the same units c. they have the same numerical value but specific gravity is dimensionless d. they have the same units but different numerical values

c. they have the same numerical values but specific gravity is dimensionless

Which of the following is a chemical property of water? a. ice floats b. water boils at 100 degrees C c. water reacts violently with sodium d. all of these are chemical properties

c. water reacts violently with sodium

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? a. 1.52x10^5 b. 1.52x10^6 c. 1.52x10^7 d. 1.52x10^8

d. 1.52x10^8

Sometimes the same word can have different meanings. In the United States the word billion means " a thousand million" but in Britain the word billion means " a million million." Which of the following corresponds to the "British Billion"? a. 1x10^-9 b. 1x10^-6 c. 1x10^9 d. 1x10^12

d. 1x10^12

Given the calculation: 4.238 + 12.72 + 9.1 = ?, what is the answer reported to the correct number of significant figures? a. 26.058 b. 26.06 c. 26.0 d. 26

d. 26

Given the calculation: 4.877 + 12.87 + 9.19 = ?, what is the answer reported to the correct number of significant figures? a. 26.937 b. 26.93 c. 26.94 d. 26.9

d. 26.9

Given the calculation: 4.238 x 9.1 =? What is the answer reported to the correct number of significant figures? a. 38.5658 b. 38.57 c. 38.6 d. 39

d. 39

Given the calculation: (6.02x10^23)/12.00 =?, what is the answer reported to the correct number of significant figures? a. 1.993x10^-23 b. 1.99x10^-23 c. 5.017x10^22 d. 5.02x10^22

d. 5.02x10^22

Given the calculation: 4.238 + 12.72 - 9.1 = ?, what is the answer reported to the correct number of significant figures? a. 7.858 b. 7.86 c. 7.8 d. 7.9

d. 7.9

Which of the following best describes a scientific theory? a. it is just one of many ways of looking at things b. it is a point of view which cannot be challenged c. it is a widely accepted explanation of some phenomena supported by a large amount of experimental data and is therefore definitely correct d. it is a widely accepted explanation of some phenomena supported by a large amount of experimental data, but it can be shown to be incorrect by a single experiment which yields results which contradict it

d. it is a widely accepted explanation of some phenomena supported by a large amount of experimental data, but it can be shown to be incorrect by a single experiment which yields results which contradict it

The Law of Conservation of Energy states which of the following? a. energy cannot be converted form one form to another b. kinetic energy is conserved c. potential energy is conserved d. none of the above

d. none of the above

Which of the following is true as a student slides down a water slide? a. kinetic energy decreases b. potential energy increases c. total energy increases d. none of the above

d. none of the above

Which of the following is not a chemical change? a. rusting of a car body b. ripening of fruit c. souring of milk d. none, all of these are chemical changes

d. none, all of these are chemical changes

Which of the following is not a physical property of gold? a. characteristic color b. density c. electrical conductivity d. none, they are all physical properties

d. none, they are all physical properties

Which of the following is the definition of the calorie? a. the amount of heat required to heat 1oz of water by 1 degree F b. the amount of heat required to heat 1oz of water by 1 degree C c. the amount of heat required to heat 1g of water by 1 degree F d. the amount of heat required to heat 1g of water by 1 degree C

d. the amount of heat required to heat 1g of water by 1 degree C

What is the equation for density?

d=m/v

Which state of matter retains its volume but adapts its shape to that of its container?

liquid

Which state of matter is essentially incompressible?

solid

Which of the following is true of a hypothesis? a. it is a tentative idea or explanation which can be disproved by an experiment b. it is a tentative idea or explanation which can be proven by an experiment c. it is a tentative idea which can either be proven or disproved by a experiment d. it is a belief which is asserted without proof

c. it is a tentative idea which can either be proven or disproved by an experiment

Which of the following is true of the specific heat of water? a. it is similar to that of other liquids b. it is the same as that of ice and steam c. it is unusually high d. it is unusually low

c. it is unusually high

In which of the following are the masses given in the correct order? a. cg>mg>g>kg b. cg>g>kg>mg c. kg>g>cg>mg d. mg>cg>g>kg

c. kg>g>cg>mg

In which of the following are the lengths given in the correct order? a. cm>mm>m>km b. cm>m>km>mm c. km>m>cm>mm d. mm>cm>m>km

c. km>m>cm>mm

Nuclear energy is an example of which of the following? a. kinetic energy b. mechanical energy c. potential energy d. radiant energy

c. potential energy

Which of the following is an example of matter? a. the light of a flame b. the sound of thunder c. the air you breathe d. none of these are matter

c. the air you breathe

An intern made an error and gave a patient a dose of 500 ug rather than 500mg of a drug. Which of the following is true? a. the patient received an overdose by a factor of 1000 b. the patient received an overdose by a factor of 100 c. the patient received an underdose by a factor of 1000 d. the patient received an underdose by a factor of 100

c. the patient received an undergoes by a factor of 1000