Science Measurement Quiz

Multiple Choice Questions

• Question 1: Which metric relationship is incorrect? The incorrect relationship is 1 gram = 10³ kilograms

• Question 2: What is the distance of 54 km in meters? 54 km equals 54,000 meters

• Question 3: What is the degree of agreement among multiple measurements called? The degree of agreement among multiple measurements is called precision

• Question 4: What is the agreement of a particular value with the true value called? The agreement of a particular value with the true value is called accuracy

• Question 5: A scientist obtains 0.045006700, how should it be written with 4 significant figures? 0.0450

• Question 6: Express 0.000191 in scientific notation? 1.91 x 10^-4

• Question 7: What state of matter has a definite volume but not a definite shape? Liquid state

• Question 8: Express 165,000 in exponential notation? 1.65 x 10⁵

• Question 9: Express 0.0470 in scientific notation? 4.70 x 10^-2

• Question 10: Is the statement "Color changes always indicate a chemical change" true or false? False

• Question 11: How many significant figures should you report for the perimeter of a textbook measuring 33.16 cm by 24.83 cm? 3 significant figures

• Question 12: Convert -46.9°C to °F? -52.4°F

• Question 13: What is a metric unit for length? Kilometer

• Question 14: Which of the following is not an SI unit? Pound

• Question 15: What happens when gasoline is added to water? It will float on top.

• Question 16: Is the statement "All physical changes are accompanied by chemical changes" true or false? False

• Question 17: What type of change is boiling water? Physical change

• Question 18: What state of matter has both definite volume and shape? Solid state

• Question 19: How many protons, neutrons, and electrons are in an atom of bromine-79? 35 protons, 44 neutrons, 35 electrons

• Question 20: Which atomic symbol is incorrect? 8N

• Question 21: The formula H₂O suggests what about mass of hydrogen compared to oxygen? There are two hydrogen atoms and one oxygen atom per water molecule

• Question 22: What is wrong with the statement that ions are formed by adding electrons to a neutral atom? Ions are formed by removing electrons from a neutral atom.

• Question 23: Calculate 4.0021 - 0.247 with significant figures? 3.76

• Question 24: How many significant figures are there in 0.04560700? 7 significant figures

• Question 25: How many significant figures are there in 0.0006313? 4 significant figures

• Question 26: How many neutrons and protons are in the nucleus of a rhenium-185 (Re-185) atom? 75 protons, 110 neutrons

• Question 27: Which SI prefix-meaning pair is incorrectly matched? deci = 10

• Question 28: What can be determined by knowing the number of protons in a neutral atom? The number of electrons in the neutral atom

• Question 29: Is the statement "The number of neutrons in an atom is the same for all neutral atoms of that element" true or false? False

• Question 30: Write out the correct proton, neutron, and electron count for 40Ca²⁺? 20 protons, 20 neutrons, and 18 electrons.

• Question 31: What species has 12 protons and 10 electrons? Mg²⁺

• Question 32: What are the numbers of protons, neutrons, and electrons in ³⁹K⁺? 19 protons, 20 neutrons, 18 electrons

• Question 33: What is the mass of 6.267 mol of sodium hydroxide (NaOH)? 250.7 g

• Question 34: How is an ion formed? By adding or subtracting electrons from the atom.

• Question 35: Which of the following are incorrectly paired? Phosphorus, Pr

• Question 36: Which of the following are incorrectly paired? Copper, Cu

• Question 37: Which of the following are incorrectly paired? Silicon, Si

• Question 38: How many significant figures are in 3.1400? 5

• Question 39: How many moles of HCl are in a 52.6 g sample? 1.44 mol

• Question 40: Is the statement "The number of electrons in an atom is the same for all neutral atoms of that element" true or false? True