Temperature and Measurement Quiz

Match each item with the correct statement below:

• mass

• weight

• Celsius temperature scale

• significant figure

• Kelvin temperature scale

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

• 1.54 × 10¹² m

• 1.54 × 10⁻¹² m

• 1.54 × 10¹⁰ m

• 1.54 × 10⁻¹⁰ m

The expression of 5008 km in scientific notation is ____.

• 5.008 × 10^3 km

• 50.08 × 10^-4 km

• 5.008 × 10^-3 km

• 5.008 × 10^4 km

What is the result of multiplying 2.5 × 10^10 by 3.5 × 10^-7?

• 8.75 × 10^-3

• 8.75 × 10^17

• 8.75 × 10^3

• 8.75 × 10^-17

What is the result of adding 2.5 × 10^3 and 3.5 × 10^2?

• 2.9 × 10^3

• 6.0 × 10^3

• 2.9 × 10^2

• 6.0 × 10^5

The closeness of a measurement to its true value is a measure of its ____.

• precision

• accuracy

• reproducibility

• usefulness

Which of the following measurements contains two significant figures?

• 0.004 00 L

• 0.0040 04 L

• 0.000 44 L

• 0.004 40 L

When a test instrument is calibrated, does its accuracy, precision, or reliability improve?

• precision

• accuracy

• reliability

• all of the above

Which of the following measurements (of different masses) is the most accurate?

• 3.1000 g

• 3.000 00 g

• 3.122 22 g

• 3.000 000 g

Which group of measurements is the most precise? (Each group of measurements is for a different object.)

• 2 g, 3 g, 4 g

• 2.0 g, 3.0 g, 4.0 g

• 2 g, 2.5 g, 3 g

• 1 g, 3 g, 5 g