Calculating Density Practice

A student is asked to perform a comparative investigation involving the densities of gold and silver. Which of the following is a well-defined question to ask for this investigation?

• What is the density of gold?

• Is the density of gold greater than the density of silver?

• How does the density of metals compare to the density of nonmetals?

• At what temperature does silver become malleable?

Tags

NGSS.HS-PS1-3

A student performs a descriptive investigation on a can of diet soda. The set-up involves the placement of a can of diet soda in a tank of water. Which of the following is a well-defined quetion to ask for this investigation?

• Is diet soda more or less dense than regular soda?

• How does the density of aluminum compare to the density of water?

• How quickly does a can of diet soda sink in water?

• Is the density of a can of diet soda greater or less than the density of water?

The Lesser Star of Africa is the fourth largest polished diamond in the world. The diamond's mass is 54g and its volume is 18 cm³. What is the density of the diamond?

• 0.3 g/cm³

• 3 g/cm³

• 36 g/cm³

• 62 g/cm³

Students performed an experimental investigation finding the density of four unknown liquids. During the investigation, a student spilled an unknown substance on themselves. Which of the following would have protected the student?

• fire extinguisher

• safety apron

• fire blanket

• eye/face wash

Mass is measured with a ___________ in units of ______.

• ruler, cm³

• triple beam balance, g

• thermometer, Cº

• beaker, L

What is the volume of the liquid in this image?

• 6.0 mL

• 6.6 mL

• 7.0 mL

• 7.1 mL

Pennies minted prior to 1982 were made of copper, which has a density of 8.96 g/cm³. After 1982, pennies were made of mostly zinc metal, which has a density of 7.13 g/cm³. Which of the following methods would be useful when trying to determine the density of a penny?

• Use the formula L x W x H

• place it on a triple beam balance to determine its volume, then a ruler to measure height.

• use the displacement method to determine volume and a triple beam balance to measure the mass

• use the periodic table and a calculator to multiply the atomic mass of zinc and copper

This block has a mass of 30g. Would it sink or float in water?

• sink, because its density is less than 1 g/cm³

• float because its density is more than 1 g/cm³

• sink because its density is more than 1 g/cm³

• float because its density is less than 1 g/cm³

A student finds a sample of wood and determines its mass to be 100g and its volume to be 80 cm³. Using this density chart, the sample of would is most likely -

• African Teakwood

• Balsa

• Cedar

• Ironwood

Tags

NGSS.MS-PS1-2

This table shows characteristics of four different substances. One of these is cork, a type of wood that floats when placed in water. Which sample is most likely cork?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2