| A | B |
|---|
| accuracy | closeness of measurement |
| activity | number of decays per second |
| adhesion | force of attraction between two unlike materials |
| ammeter | device to measure electrical current |
| antenna | Device used to recieve or transmit |
| battery | device that coverts chemical to electrical energy |
| beat | slow oscillation in amplitude of a complex wave |
| charged | object that has n unbalance of positive and negative charges |
| conductor | material through which charged particles move readily |
| consonance | 2 or more sounds that when heard together sound pleasant |
| convection | heat transfer bymeans of motion fluid |
| cosine | the ratio of the adjacent sidde and the hypotenuse |
| coulomb | Unit of electrical charge |
| diffraction | bending of waves around object in their path |
| diode | elecrical device permitting only one way current flow |
| distance | the separation between two points |
| dissonance | 2 or more sounds that when heard together sound unpleasant |
| dopants | small quantities of material added to semiconductor of source and detector |
| dynamics | study of motion of particles acted on by forces |
| efficiency | ratio of output work to input work |
