States of Matter

Question 1

Give the names of the three states of matter.

Answer 1

• Solid
• Liquid
• Gas

Question 2

Describe the arrangement, movement and the relative energy of particles in a solid.

Answer 2

• There are strong forces of attraction between particles, which hold them in a regular lattice arrangement
• Particles in solids don’t have much energy
• They hardly move - can only vibrate about their fixed positions

Question 3

Describe the arrangement, movement and the relative energy of particles in a liquid.

Answer 3

• Only some force of attraction between particles - they’re free to move past each other, but tend to stick together
• Particles have more energy in gases than particles in solids
• Particles are constantly moving with random motion

Question 4

Describe the arrangement, movement and the relative energy of particles in a gas.

Answer 4

• Very little force of attraction between particles - they’re free to move
• Particles in gases have the most energy
• Particles are constantly moving with random motion