Deck 1: Units of Measurement for Physical and Chemical Change

Question 1

Which of the following is an example of physical change?

A)Dew forms on a blade of grass.
B)A Halloween light stick glows after shaking.
C)An egg solidifies during cooking.
D)A hydrogen balloon explodes when contacted with a flame.
E)None of the above is a physical change.

Answer 1

Dew forms on a blade of grass.

Question 2

Second is a measure of

A)mass.
B)time.
C)temperature.
D)length.
E)volume.

Answer 2

time.

Question 3

Identify the unit of measurement that is a SI base unit of measurement.

A)second
B)Celsius
C)cup
D)pound
E)yard

Answer 3

second

Question 4

A physical change

A)occurs when iron rusts.
B)occurs when sugar is heated into caramel.
C)occurs when glucose is converted into energy within your cells.
D)occurs when water is evaporated.
E)occurs when propane is burned for heat.

Question 5

A chemical change

A)occurs when methane gas is burned.
B)occurs when paper is shredded.
C)occurs when water is vaporized.
D)occurs when sand is mixed with water.
E)occurs when powdered lemonade is stirred into water.

Question 6

Ampere is a measure of

A)luminous intensity.
B)amount.
C)mass.
D)length.
E)current.

Question 7

Which of the following is an example of a chemical change?

A)tea brewing
B)water boiling
C)leaves turning colour in the fall
D)sugar dissolving in water
E)None of the above is a chemical change.

Question 8

Metre is a measure of

A)mass.
B)time.
C)temperature.
D)length.
E)volume.

Question 9

Identify the common substance that has the highest density.

A)sugar
B)water
C)glass
D)lead
E)aluminum

Question 10

Kilogram is a measure of

A)mass.
B)time.
C)temperature.
D)length.
E)volume.

Question 11

Which of the following is an example of intensive properties?

A)density
B)volume
C)mass
D)None of the above is an example of intensive properties.
E)All of the above are examples of intensive properties.

Question 12

Which of the following represents a chemical property of hydrogen gas?

A)It is gaseous at room temperature.
B)It is less dense than air.
C)It reacts explosively with oxygen.
D)It is colourless.
E)It is tasteless.

Question 13

Which of the following is an example of a chemical change?

A)Copper building materials develop a green patina over time.
B)Solid ice melts.
C)Ethanol evaporates.
D)Brewing tea.

Question 14

Kelvin is a measure of

A)mass.
B)time.
C)temperature.
D)length.
E)volume.

Question 15

Which of the following is an SI base unit?

A)volt
B)gram
C)hour
D)kelvin
E)dozen

Question 16

Mole is a measure of

A)luminous intensity.
B)amount.
C)mass.
D)length.
E)current.

Question 17

Which of the following represents a physical property?

A)Sodium metal is extremely reactive with chlorine gas.
B)Mercury is a silvery liquid at room temperature.
C)Aluminum has a tendency to "rust."
D)Butane is highly flammable.
E)Argon has an unreactive nature.

Question 18

Which of the following is an example of physical change?

A)Sugar is dissolved in water.
B)Bread is baked.
C)Fireworks explode.
D)Baking soda decomposes.

Question 19

Define thermal energy.

A)energy associated with the temperature of an object
B)energy associated with the motion of an object
C)energy associated with the force of an object
D)energy associated with the gravity of an object

Question 20

Which of the following is an example of extensive properties?

A)mass
B)colour
C)density
D)temperature
E)taste

Question 21

Convert 12.5 μL to L and express it in scientific notation.

A)1.25*10⁵ L
B)1.25*10⁷ L
C)1.25*10^-3 L
D)1.25*10^-7 L
E)1.25*10^-5 L

Question 22

How many dm are in 345 dam?

A)0.345 dm
B)3.45 dm
C)3450 dm
D)34500 dm
E)345000 dm

Question 23

Convert 4392 m³ to hm³.

A)4.392 × 10^-5 hm³
B)4.392 × 10^-3 hm³
C)4.392 × 10^-1 hm³
D)4.392 × 10¹ hm³
E)4.392 × 10² hm³

Question 24

Convert 46.9 GHz to THz.

A)0.0469 THz
B)46900 THz
C)0.469 THz
D)4690 THz
E)0.000469 THz

Question 25

If the outside air temperature is 30 °F,what is the temperature in kelvin?

A)303 K
B)307 K
C)274 K
D)272 K

Question 26

If the temperature is 178 °F,what is the temperature in degrees Celsius?

A)352 °C
B)451 °C
C)67 °C
D)81.1 °C
E)378 °C

Question 27

Convert 1.34 km² to m².

A)1340000 m²
B)134000 m²
C)1.34 × 10⁷ m²
D)1.34 × 10⁴ m²
E)1340 m²

Question 28

Convert 3000 m h^-1 to km h^-1.

A)3 km h^-1
B)0.3 km h^-1
C)30 km h^-1
D)300 km h^-1
E)0.03 km h^-1

Question 29

If a solution has a temperature of 355 K,what is its temperature in degrees Celsius?

A)165 °C
B)628 °C
C)179 °C
D)279 °C
E)82 °C

Question 30

Identify the common substance that has the lowest density.

A)ice
B)aluminum
C)copper
D)table salt
E)sugar

Question 31

Convert 514 nm to m and express it in scientific notation.

A)514*10^-5 m
B)5.14*10^-7 m
C)51.4*10^-7 m
D)5.14*10¹¹ m
E)5.14*10^-9 m

Question 32

How many ns are in 16 ms?

A)1.6 × 10^-2 ns
B)1.6 × 10⁷ ns
C)1.6 × 10^-5 ns
D)1.6 × 10⁵ ns
E)1.6 × 10² ns

Question 33

If the outside temperature is 35 °C,what is the temperature in K?

A)-238 K
B)308 K
C)95 K
D)31 K
E)63 K

Question 34

Determine the mass of an object that has a volume of 88.6 mL and a density of 9.77 g mL^-1.

A)298 g
B)1100 g
C)907 g
D)568 g
E)866 g

Question 35

If the outside temperature is 35 °C,what is the temperature in °F?

A)95 °F
B)31 °F
C)121 °F
D)5.4 °F
E)63 °F

Question 36

Determine the volume of an object that has a mass of 455.6 g and a density of 19.3 g mL^-1.

A)87.9 mL
B)42.4 mL
C)18.5 mL
D)23.6 mL
E)31.2 mL

Question 37

Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when placed in a graduated cylinder.

A)8.08 g mL^-1
B)1.38 g mL^-1
C)12 .4 g mL^-1
D)18.1 g mL^-1
E)11.4 g mL^-1

Question 38

Convert 8.3 mg to μg.

A)0.0083 μg
B)83 μg
C)830 μg
D)8300 μg
E)83000 μg

Question 39

If the speed limit on a highway is 100 km h^-1,what is the speed limit in m h^-1?

A)1 × 10⁷ m h^-1
B)0.1 m h^-1
C)1 × 10³ m h^-1
D)1 × 10⁵ m h^-1
E)1 × 10¹ m h^-1

Question 40

A solution has a temperature of 68 °C.What is the temperature in K?

A)427 K
B)20 K
C)154 K
D)341 K
E)296 K

Question 41

Systematic error is defined as

A)error that tends to be consistently too high or too low.
B)error that has equal probability of being too high or too low.
C)error that averages out with repeated trials.
D)error that is random.

Question 42

Read the length of the metal bar with the correct number of significant figures.

A)20 cm
B)15 cm
C)15.0 cm
D)15.00 cm
E)15.000 cm

Question 43

Read the temperature with the correct number of significant figures.

A)87 °C
B)87.2 °C
C)87.20 °C
D)87.200 °C
E)87.2000 °C

Question 44

Ethylene glycol is commonly used as antifreeze in the cooling systems of vehicles due to its low freezing point,8.6 °F.What is the freezing point in °C?

A)0.0°C
B)-13°C
C)-26°C
D)-45°C
E)-54°C

Question 45

Ethanol has a freezing point of 159 K.What is the freezing point in °C?

A)-81 °C
B)-78 °C
C)-62 °C
D)-114 °C
E)-195 °C

Question 46

How many significant figures are in 1009.630 mL?

A)3
B)4
C)5
D)6
E)7

Question 47

Ethanol has a boiling point of 351 K.What is the boiling point in °C?

A)78 °C
B)-195 °C
C)122 °C
D)62 °C
E)86 °C

Question 48

A gas phase mixture has a temperature of 643 °C.Calculate the temperature in K.

A)916 K
B)873 K
C)188 K
D)1391 K
E)370 K

Question 49

A solution has a temperature of 18.65 °C.What is the temperature in K?

A)324.80 K
B)291.80 K
C)301.65 K
D)65.57 K
E)283.15 K

Question 50

A student performs an experiment to determine the density of a sugar solution.She obtains the following results: 1.11 g mL^-1,1.81 g mL^-1,1.95 g mL^-1,1.75 g mL^-1.If the actual value for the density of the sugar solution is 1.75 g mL^-1,which statement below best describes her results?

A)Her results are precise,but not accurate.
B)Her results are accurate,but not precise.
C)Her results are both precise and accurate
D)Her results are neither precise nor accurate.
E)It isn't possible to determine from the information given.

Question 51

The melting point of copper is 1984 °F.What is the melting point in K?

A)1724 K
B)1631 K
C)1358 K
D)2257 K
E)1286 K

Question 52

How many significant figures are in the measurement 0.0005890 g?

A)4
B)5
C)6
D)7
E)8

Question 53

An unknown metal is heated to 850 °F.What is the temperature in K?

A)1350 K
B)1120 K
C)460 K
D)540 K
E)730 K

Question 54

How many significant figures are in the measurement 463.090 m?

A)2
B)3
C)4
D)5
E)6

Question 55

A student performs an experiment to determine the density of a sugar solution.She obtains the following results: 1.71 g mL^-1,1.73 g mL^-1,1.67 g mL^-1,1.69 g mL^-1.If the actual value for the density of the sugar solution is 1.40 g mL^-1,which statement below best describes her results?

A)Her results are precise,but not accurate.
B)Her results are accurate,but not precise.
C)Her results are both precise and accurate
D)Her results are neither precise nor accurate.
E)It isn't possible to determine from the information given.

Question 56

Read the length of the metal bar with the correct number of significant figures.

A)20 cm
B)15 cm
C)15.0 cm
D)15.00 cm
E)15.000 cm

Question 57

Read the water level with the correct number of significant figures.

A)5 mL
B)5.3 mL
C)5.32 mL
D)5.320 mL
E)5.3200 mL

Question 58

A student performs an experiment to determine the density of a sugar solution.She obtains the following results: 1.79 g mL^-1,1.81 g mL^-1,1.80 g mL^-1,1.81 g mL^-1.If the actual value for the density of the sugar solution is 1.80 g mL^-1,which statement below best describes her results?

A)Her results are precise,but not accurate.
B)Her results are accurate,but not precise.
C)Her results are both precise and accurate
D)Her results are neither precise nor accurate.
E)It isn't possible to determine from the information given.

Question 59

Ethylene glycol is commonly used as antifreeze in the cooling systems of vehicles due to its low freezing point,8.6 °F.What is the freezing point in K?

A)280 K
B)-13 K
C)260 K
D)273 K
E)240 K

Question 60

How many significant figures are in 3.408 × 10⁴ m?

A)3
B)4
C)5
D)7
E)8

Question 61

What answer should be reported,with the correct number of significant figures,for the following calculation? log(4.28 × 10³)- 1

A)2.63144
B)2.6314
C)2.631
D)2.6
E)3

Question 62

What answer should be reported,with the correct number of significant figures,for the following calculation? -log(3.28 × 10^-3)

A)2
B)2.484
C)2.4841
D)2.48
E)2.5

Question 63

How many cm³ are contained in 3.77 × 10⁴ mm³?

A)3.77 × 10⁴ cm³
B)3.77 × 10¹ cm³
C)3.77 × 10^-10 cm³
D)3.77 × 10²⁰ cm³
E)3.77 × 10⁶ cm³

Question 64

How many mg does a 433 kg sample contain?

A)4.33 × 10^-4 mg
B)4.33 × 10⁷ mg
C)4.33 × 10^-3 mg
D)4.33 × 10⁶ mg
E)4.33 × 10⁸ mg

Question 65

What answer should be reported,with the correct number of significant figures,for the following calculation? 100 × 10^-1.4 + log(1.6 × 10²)

A)6.2
B)6.19
C)6.18
D)6
E)6.185

Question 66

What answer should be reported,with the correct number of significant figures,for the following calculation? $\frac { ( 16.84 - 15.93 ) } { 9.6318 }$ × 12.3

A)1.16
B)1
C)1.162
D)1.1621
E)1.2

Question 67

How many significant figures are in the measurement 20.300 m?

A)3
B)4
C)5
D)1
E)2

Question 68

What answer should be reported,with the correct number of significant figures,for the following calculation? $$\frac { 10 - 3.8214 } { e ^ { - 5.513 } }$$

A)0.037
B)0.0374
C)0.03740
D)0.037399
E)0.0373995

Question 69

What answer should be reported,with the correct number of significant figures,for the following calculation? (433.621 - 333.9)× 11.900

A)1.19 × 10³
B)1.187 × 10³
C)1.1868 × 10³
D)1.18680 × 10³
E)1.186799 × 10³

Question 70

What wavelength of light would you report in units of nm if the light had a wavelength of 7.60 × 10^-10 m?

A)7.60 × 10^-3 nm
B)7.60 × 10^-19 nm
C)1.32 nm
D)0.760 nm
E)760 nm

Question 71

What answer should be reported,with the correct number of significant figures,for the following calculation? (965.43 × 3.911)+ 9413.4136

A)13189
B)13189.2
C)1.32 × 10⁴
D)1.3 × 10⁴
E)1.319 × 10⁴

Question 72

How many kL does a 1.25 × 10⁸ cL sample contain?

A)1.25 × 10³ kL
B)1.25 × 10¹³ kL
C)1.25 × 10⁴ kL
D)1.25 × 10¹² kL
E)1.25 × 10² kL

Question 73

What answer should be reported,with the correct number of significant figures,for the following calculation? $$10 ^ { - 4.68 }$$

A)2.1 × 10^-5
B)2 09 × 10^-5
C)2 × 10^-5
D)2.089 × 10^-5
E)2.0893 × 10^-5

Question 74

What answer should be reported,with the correct number of significant figures,for the following calculation? 3.000 × 10⁵ + 614283

A)914283
B)9.1428 × 10⁵
C)914300
D)9.14283 × 10⁵
E)914000

Question 75

What answer should be reported,with the correct number of significant figures,for the following calculation? 6.83192458 + log(6.7831 × 10⁴)

A)11.66335
B)11.663353
C)11.6634
D)11.6633528
E)11.663

Question 76

How many mm are in 3.20 cm?

A)3.20 × 10 ¹ mm
B)3.20 × 10 ^-1 mm
C)3.20 × 10 ^-2 mm
D)3.20 × 10 ² mm
E)3.20 × 10 ³ mm

Question 77

How many mL are in 2.54 L?

A)2.54 × 10^-3 mL
B)2.54 × 10¹ mL
C)2.54 × 10³ mL
D)2.54 × 10^-1 mL
E)2.54 × 10² mL

Question 78

What answer should be reported,with the correct number of significant figures,for the following calculation? 100.0 g × 4.18 J g^-1 °C^-1 × (26.4 °C - 25.5 °C)

A)4 × 10² J
B)3.8 × 10² J
C)376 J
D)376.2 J
E)376.20 J

Question 79

What answer should be reported,with the correct number of significant figures,for the following calculation? (249.362 + 42)/ 63.498

A)4.6
B)4.59
C)4.589
D)4.5885
E)4.58852

Question 80

What answer should be reported,with the correct number of significant figures,for the following calculation? 1.682 × 10^-3 + 4.311 × 10^-2

A)4.44792 × 10^-2
B)4.44792 × 10^-3
C)4.48 × 10^-2
D)4.479 × 10^-3
E)4.479 × 10^-2