Measurements and Units Quiz

What is the primary system of measurement used by most countries?

• English System

• US Customary System

• Metric System

• Imperial System

Which of the following best describes accuracy?

• Closeness to the true value

• The ability to repeat measurements

• The number of significant figures

• Consistency of measurements

What is the SI unit for mass?

• Gram

• Ounce

• Kilogram

• Pound

Which prefix represents 10^3 in the metric system?

• Kilo

• Giga

• Mega

• Deci

What is the conversion factor for 1 inch in centimeters?

• 0.0254 m

• 0.0254 cm

• 2.54 m

• 2.54 cm

Which of the following is an example of a derived unit?

• Meter

• Second

• Kilogram

• Cubic meter

What does precision refer to in measurements?

• The smallest unit of measurement

• Consistency of measurements

• The total number of measurements

• Closeness to the true value

Which of the following is a systematic error?

• Random fluctuations in measurement

• Faulty instrumentation

• Human error in counting

• Environmental changes

What is the density of water in g/cm³?

• 2 g/cm³

• 0.5 g/cm³

• 1 g/cm³

• 0.8 g/cm³

How many significant figures are in the number 0.002806?

• 3

• 4

• 5

• 6