Density

Question 1

What is the particle diagram for solids?

Answer 1

• Particles very close together.
• Arranged in regular patterns.
• ## Particles vibrate in a singular spot.

Question 2

What is the arrangement of a liquid?

Answer 2

• Particles are close together.
• Not in a regular pattern.
• Particles can move around eachother.

Question 3

What is the arrangement of a gas?

Answer 3

• particles are far apart.
• Not arranged in any pattern.
• ## Particles are moving rapidly.

Question 4

What is density?

Answer 4

• The density of a material tells us mass for the given volume.
• Calculated with:
• Mass/Volume.
  Density= kg/m^3
  Mass= kg.
  Volume= m^3.

Question 5

What density do solids have?

Answer 5

• High density.
• Particles are packed closely together.
• ## Solids have a lot of mass for their volume.

Question 6

What density do liquids have?

Answer 6

• High density.-
• ## Particles are closed together so there is a lot of mass for their volume.

Question 7

What density do gasses have?

Answer 7

• Gases have a low density.
• Particles are very far apart.
• gasses have only a small mass for their volume.

Question 8

What is the density for polystyrene?

Answer 8

• Low.
• Open structure and filled with air spaces.
• ## Small mass for it’s volume.

Question 9

How do we work out the density for regular objects?

Answer 9

• • Determine the mass using a balance.
• Work out volume we can use a ruler to measure the length of the sides,
• Use the equation to find the desnity.

Question 10

How do we find the density of an irregular object?

Answer 10

• Measure the mass using a balance.
• Fill the eureka can with water.
• Place the object into the water and the water will be displayed through the spout.
• Measure the volume of the water displaced.
• Volume is the same volume as the object.
• Measure the density.