Density Review

Multiple Choice

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

Multiple Choice

The density of an object is equal to

• Mass plus volume

• volume divided by mass

• volume times mass

• Mass divided by volume

Multiple Choice

Select an image with the least amount of density

Multiple Choice

Helium balloons rise on earth because

• helium is less dense than air
• helium is more dense than air
• helium is cooler than air
• helium is warmer than air

Multiple Choice

Look at this image.  Which object has the LOWEST density in water? How? 

• The Ping Pong Ball because it floats to the top 
• The bolt because it has sunk to the bottom
• The soda cap because it is not just full of air like the Ping Pong ball

Multiple Choice

Which liquid is less dense than dish detergent?

• DIsh detergent

• Shampoo

• Antifreeze

• Maple syrup

Multiple Choice

Warm air is _____ dense than cool air.

• more

• less

• the same

Multiple Choice

When the density of a substance is lower than the density of water the substance the substance does what in water?

• sink

• float

Multiple Choice

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

Multiple Choice

If a volcanic rock floats in water, what can you conclude about the rock?

• The rock's density is more than the density of water.

• The rock has a density less than water's density.

• The rock's atoms and molecules are tightly packed together.

• The rock's atoms and molecules are buoyant.

Multiple Choice

What is this tool to get mass?

• triple beam balance
• ruler
• thermometer
• graduate cylinder

Multiple Choice

What units are used to measure mass?

• g
• cm³
• g/cm³
• cm³/g

Multiple Choice

What is the mass shown in the picture?

• 202002 g

• 222 g

• 202 g

• 200 g

When the object has regular sides, you need to measure the sides and use the formula

V= L x W x H

Regular Objects

When the object does not have sides that you can easily measure, you need to use the water displacement method.

Irregular Object

Multiple Choice

Which units of measurement are used for volume?

• grams
• centimeters
• grams/milliliter
• milliliter

Multiple Choice

What method is being used in this picture?

• Determining mass
• Finding the density
• Water displacement
• The triangle trick

Multiple Choice

How much water has been displaced in the image shown?

• 40 mL
• 65 mL
• 20 mL
• 25 mL

Multiple Choice

What is the volume of the regular object?

• 10 cm³

• 15 cm³

• 20 cm³

• 40 cm³

Multiple Choice

What is the volume of the fish?

• 18.0 ml

• 6.0 ml

• 38.0 ml

Multiple Choice

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

Multiple Choice

An object is is placed into 45 mL of water. The water rises to 48 mL. What is the volume of the object?

• 3 mL

• 93mL

• 8 mL

• 83 mL

Multiple Select

Students were asked to calculate the density of a cube. Which measurements do the students need to collect in order to calculate the density of the cube?

Select Two answers.

• distance

• mass

• force

• volume

Multiple Choice

A 30kg sample of an unknown material has a volume of 15m3. What is its density in kg/m3?

• 45

• 2

• 450

• 1.5

Multiple Choice

Billy is trying to figure out what type of wood to use for building a model boat. He has a block of wood with a volume of 8.0 cubic centimeters (cm3) and a mass of 4.0 grams (g). What is the density of the block of wood in g/cm3 to the nearest tenth?

• 0.5

• 2.0

• 4.0

• 32.0

Multiple Choice

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Multiple Choice

An object has a mass of 20 g and a volume of 10 mL. What is the density of the object?

• 200 g/mL

• 20 g/mL

• 2 g/mL

• 0.2 g/mL

Multiple Choice

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Multiple Choice

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Multiple Choice

A crayon has a mass of 10g and volume of 5 mL. What is the density?

• 30 g/mL
• 15 g/mL
• 1 g/mL
• 2 g/mL

Multiple Choice

If an object has a density of .6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

What happens to air molecules when they are cooled?

• They spread apart

• they become compacted

• they stay the same

• they move quickly

Multiple Choice

What does cooler, denser material do?

• float

• sink

• nothing

Multiple Choice

What happens to an object that is denser (more dense) than the liquid it is in?

• floats

• sinks

Multiple Choice

Frank has a paper clip. It has a mass of 9g and a volume of 3cm³. What is its density?

• 3 g/cm³
• 1/3 g/cm³
• 27 g/cm³
• 39 g/cm³

Multiple Choice

How much water has been displaced in the image shown?

• 80 mL
• 100 mL
• 20 mL
• 60 mL

Multiple Choice

The tool used to measure the mass of a substance or object is a ______________.

• balance
• graduated cylinder
• ruler
• thermometer

Multiple Choice

Calculate the density of the cube.

• 2 g/cm³
• 4 g/cm³
• 6 g/cm³
• 8 g/cm³

Multiple Choice

What units are used to measure Density?

• cm³/g
• g
• g/cm³
• cm³

Multiple Choice

What is this tool to get volume?

• triple beam balance
• ruler
• thermometer
• graduate cylinder

Multiple Choice

When you put an object in a graduated cylinder of water and measure how much the water level changed what is this process called?

• Relative Density

• Displacement

• Density

Multiple Select

Which ones can be units for density?

(Multiple responses)

• g/ mL

• g

• $$\frac{g}{cm^3}$$  

• $$cm^4$$  

Multiple Choice

What is the mass of a 25 cm³  liquid if it has a density of 5 g/cm³?

• 125 g

• 5 g

• $$\frac{5g}{cm^3}$$  

• $$0.2\ cm^3$$  

Multiple Choice

Find the density of a substance with a mass of 45 grams and a volume of 9 milliliters.

• 5 kg/L

• 5 g/ml

• 45g

• 36 g/ml