A+P Chap 2
Terms
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- Matter
- Anything that occupies space and has mass
- Energy
- the capacity to do work, or put matter into motion
- Kinetic Energy
- Energy in motion
- Potential Energy
- stored energy
- Electrical Energy
- energy formed by the movement of charged particles across cell membranes
- Mechanical Energy
- energy directly involved in in moving matter
- Radiant Energy
- energy that moves in waves
- Element
- unique substances that cannot be broken down into simpler substances by ordinary means
- Atom
- smallest particle of an elemental substance that exhibit the properties of that element
- Ion
- atom with a positive or negative electrical charge
- Molecule
- a combination of two or more atoms held together by a chemical bond
- Compound
- substance composed of two or more different substances
- Organic compound
- any compound composed of atoms held together by a covalent bond
- electrolytes
- chemical substances, such as salts that ionize and dissociate in water and are capable of conducting an electrical current
- Covalent Bond
- chemical bond created by electron sharing between atoms