Deck 1: Units of Measurement for Physical and Chemical Change

Question 1

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.

Answer 1

Sugar is dissolved in water.

Question 2

The energy associated with the temperature of an object is known as the ________.

A) potential energy
B) total energy
C) thermal energy
D) gravitational energy
E) magnetic energy

Answer 2

thermal energy

Question 3

________ is the energy associated with motion of an object.

A) Potential energy
B) Kinetic energy
C) Total energy
D) Solar energy
E) Gravitational energy

Answer 3

Kinetic energy

Question 4

Kilogram is a measure of ________.

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

Question 5

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 6

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 7

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 8

Kelvin is a measure of ________.

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

Question 9

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

A) Condensation of steam
B) Melting gold
C) Evaporating water
D) Burning wood
E) Sublimation of moth balls

Question 10

Total energy of an object is best defined as the sum of ________.

A) kinetic energy and potential energy
B) kinetic energy and thermal energy
C) chemical energy and potential energy
D) chemical energy and magnetic energy
E) potential energy and magnetic energy

Question 11

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 12

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 13

________ is the energy associated with the position or composition of an object.

A) Kinetic energy
B) Total energy
C) Solar energy
D) Gravitational energy
E) Potential energy

Question 14

Which of the following is an SI base unit?

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

Question 15

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

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

Question 16

Metre is a measure of ________.

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

Question 17

Which of the following is an example of a 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.

Question 18

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

A) Burning wood
B) Melting ice
C) Digesting food
D) Souring milk
E) Making water from hydrogen gas and oxygen gas

Question 19

Which of the following statements is FALSE?

A) Energy is neither created nor destroyed.
B) When an object falls from a higher surface, gravitational potential energy converts into kinetic energy.
C) Physical and chemical changes are usually accompanied by energy changes.
D) The molecules that compose gasoline have chemical potential energy.
E) When gasoline undergoes combustion, the molecules that are newly formed have higher potential energy than the molecules that compose gasoline.

Question 20

Second is a measure of ________.

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

Question 21

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 22

Ampere is a measure of ________.

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

Question 23

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 24

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 25

Identify the common substance that has the lowest density.

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

Question 26

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 27

Convert 8.3 mg to μg.

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

Question 28

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 29

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 30

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 31

Which of the following is an example of extensive properties?

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

Question 32

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 33

Mole is a measure of ________.

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

Question 34

Identify the common substance that has the highest density.

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

Question 35

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 36

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 37

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 38

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 39

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 40

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 41

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 42

Determine the volume of an object that has a mass of 100 g and a density of 9.55 g mL^-1.

A) 10.5 mL
B) 955 mL
C) 0.095 mL
D) 25.6 mL
E) 27.9 mL

Question 43

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 44

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 45

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 46

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 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 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 49

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 50

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 51

On a cold winter day, the outside temperature is reported as being -35 °C. What is the temperature in K?

A) 98.15 K
B) 238.15 K
C) 308.15 K
D) 400.15 K
E) 283.15 K

Question 52

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 53

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 54

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 55

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 56

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 57

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 58

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 59

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 60

On a cold winter day, the temperature was -15 °C. What is the temperature in K?

A) 288.15 K
B) 238.15 K
C) 258.15 K
D) 400.15 K
E) 283.15 K

Question 61

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 62

How many significant figures are in the measurement 0.0005890 g?

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

Question 63

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 64

How many significant figures are in the measurement 20.300 m?

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

Question 65

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 66

What answer should be reported, with the correct number of significant figures, for the following calculation?

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

Question 67

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 68

What answer should be reported, with the correct number of significant figures, for the following calculation? × 12.3

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

Question 69

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 70

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 71

How many significant figures are in the measurement 463.090 m?

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

Question 72

How many significant figures are in 3.408 × 10⁴ m?

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

Question 73

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 74

How many significant figures are in 1009.630 mL?

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

Question 75

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 76

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 77

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 78

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 79

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 80

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