Question 1

Which of the following quantities is expressed in SI base units?

Accepted Answer

$$8.163 	imes 10^3$ kg

Question 2

Which SI base unit is used to measure temperature?

Accepted Answer

Kelvin

Question 3

A scientist measures the mass of a sample as $$4.53 	imes 10^3$ grams. What is the mass in SI base units?

Accepted Answer

$$4.53 kg$$

Question 4

Which of the following represents a volume in SI units?

Accepted Answer

$$4.513 	imes 10^7$ m^3$

Question 5

Convert $$12$$ minutes into SI units of time.

Accepted Answer

$$720 s$$

Question 6

Which of the following is NOT an SI base unit?

Accepted Answer

liter

Question 7

A car travels $$333.3 km/h. $$What is its speed in SI units?

Accepted Answer

$$92.6 m/s$$

Question 8

Which physical quantity is measured in SI units of 'mole'?

Accepted Answer

Amount of substance

Question 9

A laboratory sample has a length of $$2.5 cm. $$What is this length in SI base units?

Accepted Answer

$$0.025 m$

Question 10

Which of the following is the correct SI unit for measuring electric current?

Accepted Answer

Ampere

Question 11

A reaction produces $$0.5$$ liters of gas. What is the volume in SI base units?

Accepted Answer

$$5 	imes 10$$^{-4}$$ m^3$

Question 12

Which SI base unit would you use to measure the intensity of light?

Accepted Answer

candela

Question 13

A student records a measurement as $$1.2 	imes 10^3$ mg. What is this mass in SI base units?

Accepted Answer

$$0.0012 kg$$

Question 14

Which of the following is a derived SI unit?

Accepted Answer

cubic meter

Question 15

A sample contains $$6.022 	imes 10$$^{23}$$ molecules. What is the amount of substance in SI base units?

Accepted Answer

$$1$$ mole

SI Base Units and Measurement in Chemistry

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