density of materials

Question 1

what is density?

Answer 1

a measure of the compactness of a substance

Question 2

how do you calculate density?

Answer 2

density = mass / volume

Question 3

what does the density of an object depend on?

Answer 3

what it’s made of and how its particles are arranged

Question 4

what is a dense material?

Answer 4

its particles are packed tightly together

Question 5

what is a less dense material?

Answer 5

particles that are more spread out (if you compressed the material it would become dense)

Question 6

what are the qualities of solids?

Answer 6

strong forces of attrition hold the particles close together in a fixed regular arrangement, density is the highest

Question 7

what are the qualities of liquids?

Answer 7

weaker forces of attraction between particles, close together but can move past each other, less dense

Question 8

what are the qualities of gases?

Answer 8

almost no forces of attraction between particles, more energy and free to move, fast travelling, low densities

Question 9

how do you find the density of a solid object?

Answer 9

first measure the mass, if its regular you can measure it and work out the volume, if its irregular you can work the volume by submerging it in a eureka can, the water displaced will be the volume of the object

Question 10

how do you find the density of a liquid?

Answer 10

measure the mass of a certain volume of you liquid then repeat the process until you can work out an average