Physics- P3 Part A

1. What is conserved when there is a change of state (4)
4. This is the total energy which particles have in kinetic energy and potential energy stores (8, 6)
5. ?= Mass/Volume (7)
9. These have :- Strong forces of attraction, hold particles together in a fixed arrangement. - Particles have not much energy, so can only vibrate. -Density is the highest of all states (6)
10. If a substance is heated enough, particles have enough energy to break what? (3, 5)

2. Doing this to a material makes it more dense (11)
3. These have: -Weaker forces of attraction, particles close together but move past each other. -Irregular arrangements, move in random directions at low speeds, less dense. (7)
6. These have: -No forces of attraction, have a lot more energy. -Free to move, random directions at high speeds. Less dense than liquids. (5)
7. Particles spread out means it is (4, 5)
8. Particles packed together means it is (4, 5)

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