QZ 20: Density Calculation

To calculate density you would use the following equation

• D = M/V
• M = D x V
• V = M/ D
• NONE OF THESE

If a cube has a mass of 50 grams and a volume of 10cc, what is its density?

• 10/50 = .2 cc/g
• 10cc x 50 g = 500 gcc
• 50g/10cc = 5 g/cc
• not enough information

A key is placed in a graduated cylinder with 60 ml of water. It makes the water level rise to 67 ml.  What is the volume of the key?

• 60 ml
• 67 ml
• 127 ml
• 7 ml

A key displaces 7 ml of water and has a mass of 59.5 grams. What is its density?
(how could you determine what is it made of??)

• D = M/V  59.5g/ 7ml = 8.5 g/ml
• D = M/V       7/ 59.5 = .117 ml/g
• D = M V =7 x 59416.5 gml

If you know the density and the mass of an object, what equation would you use to calculate its volume?

• V = D/M
• V = M/D
• V = M x D
• V = l x w x h

Calculate the density of the cube.

• 2 g/cm³

• 4 g/cm³

• 6 g/cm³

• 8 g/cm³

A bar of copper has a mass of 216g and a volume of 24cm³. What is the density of copper?  

• 9g/cm3
• .11g/cm3
• 5184g/cm3
• 322mL

Tags

CCSS.6.RP.A.3D

If a block of wood has a density of 0.6 g/cm³ and a mass of 120 g, what is its volume?

• 200 cm³
• 0.005 cm³
• 200.0 ml
• 72 ml

Tags

CCSS.7.RP.A.3

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

Tags

NGSS.MS-PS1-2

Why do ice cubes float in a  glass of water?

• the ice cubes are more dense than the water
• the water is more dense than the ice cubes
• the water is more dense than the glass
• the ice is more dense than the glass

Tags

NGSS.5-PS1-3