Unit 1: Scientific Method and Measurements

The amount of space an object occupies is

• mass

• matter

• volume

• length

Pauline wanted to know which paper towel absorbed the most water, either Bounty or Viva. She soaked five paper towel samples into 10mL of water each and found the amount of water absorbed. What is the dependent variable of her experiment?

• mass of the paper towel

• 10 mL of water

• amount of water absorbed

• size of the paper towel

Victoria is finding the density of an unknown solid. Her values were: 1.81g/mL, 1.79g/mL and 1.82 g/mL. After consulting with Ms. Brewton she was informed that the actual accepted density is 1.84 g/mL. How would you describe her data?

• accurate

• precise

• both accurate and precise

• neither accurate or precise

All of the following are acceptable units for density EXCEPT

• g/mL

• kg/cm³

• g/cm³

• mL/g

What is the best way to measure the volume of an irregular object?

• displacement

• weight on a scale

• use a ruler

• use a graduated cylinder

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.

• 12.3 g/mL

• 283.5 g/mL

• 0.07g/mL

• 13.6 g/mL

What's the formula for density?

• D = M/V

• D = M * V

• ratio to mass to volume

• D = V/M

A unit of measurement for mass is ____________

• kilogram

• mililiter

• cubic centimeter

• liter

You are trying to layer liquids based on density. Liquid 1 has a density of 2.0 g/ml, Liquid 2 has a density of 1.5 g/ml, and Liquid 3 has a density of 1.8 g/ml. Which liquid will make up the top layer?

• Liquid 1

• Liquid 2

• Liquid 3

• Not enough information

The symbol mm represents

• millimeter

• micrometer

• meter

• milliliter