Topic 3 - Particle model of matter ( 1. density and states of matter )

Question 1

what is density

Answer 1

measure of compactness of a substance. relates to the mass and how much space it takes up.

Question 2

formula for density

Answer 2

p = m/v

Question 3

what are the 3 states of matter

Answer 3

solid liquid gas

Question 4

describe the arrangement of particles in a solid

Answer 4

In a solid, particles are packed tightly together in a regular pattern. Solids have fixed shaped that are hard to break apart because individual particles do not have enough energy to escape individually. Solids are ALWAYS in a regular lattice pattern

Question 5

describe the arrangement of particles in a liquid

Answer 5

In liquids, the particles are near each other, but not tightly packed. The particles in a liquid are able to slide past each other. … The looser arrangement of particles is what allows liquids to take on the shape of their container.

Question 6

describe the arrangement of particles in a gas

Answer 6

gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern

Question 7

what piece of equipment is used to measure the volume of an irregular solid object

Answer 7

an eureka can

Question 7

what piece of equipment is used to measure the volume of an irregular solid object

Answer 7

an eureka can