Friday, February 27, 2009

3 main types of subatomic particles.

1. Protron-charge is +1 and is found in the nucleus.

2. Neutron-charge is  0 and is found in the nucleus along with the protron(s).

3.Electron-charge is -1 and is found in a region around the nucleus called the electron cloud.

Wednesday, February 4, 2009

Definitions

Wavelength-the distance, measured in the direction of propagation of a wave, between two successive points in the wave that are characterized by the same phase of oscillation.

Wave frequency-frequency refers to how many waves are made per time interval (this is usually described as how many waves are made per second or as cycles per second).

Wave height-the vertical distance between the crest and the preceding through of a wave.