USC bridge 1.1 Matter and Properties of Elements

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1

Chemistry and physiological reactions

  • Body is made up of many chemicals
  • chemistry underlies all physiological reactions, i.e.: movement, digestion, heart pumping, nervous system.
2

Chemistry can be broken down into:

Basic chemistry and biochemistry.

3

Matter

  • Anything that has mass and occupies space.
4

States of matter

  • Solid- definite shape and volume
  • liquids- definite volume, changing shape
  • gas- changeable shape and volume
5

Energy is

The power to do work.

  • Can effect mass/matter.
  • Can be converted from one form to another, but this is not efficient and some energy is lost as heat.
6

Kinetic energy

Energy in motion

7

Potential energy

Stored form of energy. Energy will be put into motion later.

8

Chemical energy

Stored in bonds of chemical atoms (substances). Energy contained in the bonds between elements and molecules

9

Electrical energy

The movement of charged particles. Electron and other charged molecules

10

Mechanical energy

Directly involved in moving matter. Ie: muscle contraction

11

Radiant or electromagnetic energy

Exhibits wavelike properties i.e.: light, UV light, x-rays