Density

The density of an object equals its:

• mass divided by volume

• volume divided by mass

• mass times volume

• volume times mass

Looking at the image... can oak float in water? 

• Yes
• No

Tags

NGSS.MS-PS1-2

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Tags

NGSS.MS-PS1-2

If an object with a density of 2.0 g/cm³ is placed in a fluid with a density of 1.9 g/cm³, the object will

• float

• sink

• drift in the middle of the fluid

The air near the ceiling of a classroom has a temperature of 40C while the air near the floor has a temperature of 25C. What conclusion can you make about the air in the room?

• The air near the ceiling is more buoyant than the air near the floor.

• The air near the ceiling is more dense than the air near the floor.

• The air near the ceiling is less buoyant than the air near the floor.

• The air near the ceiling has the same density as the air near the floor.

Tags

NGSS.MS-ESS2-6

If an object in a tank of water has neutral buoyancy, you can conclude that:

• the object is denser than water

• the object's density is equal to that of the water

• the object is less dense than water

• All of the above

What is the density of a silver ring that has a volume of 1.55cm³ and a mass of 3.0g?

• 0.5 g/cm³

• 1.9 g/cm³

• 19.3 g/cm³

• 75.9 g/cm³

Which of the following is not a fluid?

• Helium gas

• Water

• Maple Syrup

• Table

High density objects have:

• a large volume for their mass

• a small volume for their mass

• a large volume for their temperature

• a small volume for their temperature

When an object is cooled and decreases in temperature, its atoms become pushed closer together, causing:

• its weight to increase

• its weight to decrease

• its volume to increase

• its volume to decrease

Tags

NGSS.MS-PS1-4