Saturday, September 11, 2010

Weekly Vocabulary Words - 9/13/10

Test on 9/17/10
1. Accelerate - to speed up

2. Accelerator - a machine which accelerates charged particles to high energies

3. Antimatter - matter that is exactly the opposite in every way from its matter counterpart: antiquark/quark; positron/electron

4. Atom - the smallest unit of a chemical element, made up of a nucleus surrounded by electrons

5. Beam - a ray of light; a group of particles traveling together along a well-defined path