| aberration |
|
|
absorption spectrum |
|
|
acceleration |
|
|
acclerator |
|
|
acoustics architectural |
|
|
activity nuclear |
|
|
adiabatic demagnetization |
|
|
adiabatic process |
|
|
alpha particle |
|
|
alternating current |
|
|
ammeter |
|
|
ammonia clock |
|
|
ampere |
|
|
ampere hour |
|
|
Ampere circuital law |
|
|
anemometer |
|
|
aneroid barometer |
|
|
angular momentum |
|
|
antimatter |
|
|
Archimedes priciple |
|
|
astronomical unit |
|
|
atom |
|
|
atom hydrogen |
|
|
atomic mass unit |
|
|
atomic weight |
|
|
atom many electron |
|
|
Auger effect |
|
|
Avogedro constant |
|
|
Avogedro law |
|
