Chapter 3: Measuring and Calculating Quiz

In the sample problem, what is the first step in converting 250 grams to kilograms using dimensional analysis?

• Multiply by the conversion factor

• Write the given quantity

• Cancel units

• Simplify mathematically

_{^{How many inches is the tool using proper significant figures? Only write the number - do not write units in your answer.}}

Mathematical Equivalence

OFF

What is the SI base unit for measuring length?

• Kilometer

• Meter

• Centimeter

• Millimeter

What is the volume equivalent of 1 liter in milliliters?

• 100 mL

• 500 mL

• 1000 mL

• 1500 mL

Convert 1225 grams to milligrams.

• 122,500 mg

• 12,250 mg

• 1,225,000 mg

• 122,500,000 mg

Subtract 12.0 km from 4280 km and express the answer in scientific notation.

• 4.268 x 10^3 km

• 4.268 x 10^2 km

• 4.268 x 10^4 km

• 4.268 x 10^5 km

Calculate the product of 264 cm and 0.50 cm with the correct number of significant figures.

• 132 cm^2

• 132.0 cm^2

• 132.00 cm^2

• 130 cm^2

What is the mass in kilograms of a 2500 gram object?

• 2.5 kg

• 250 kg

• 25 kg

• 0.25 kg

Which of the following measurements has the greatest number of significant figures?

• 4.00 g

• 0.0400 g

• 0.004000 g

• 40.0 g

A scientist takes the temperature of a lake with a faulty thermometer. The temperature of the lake is 18.9 C, but the scientist records 17.0 C. What is the percent error?

Only record the number with correct significant figures - do not write units.

Mathematical Equivalence

ON