Example: air traffic controller
Atomic clock
Found 2 free book(s)
Modern Physics Notes
web.sbu.eduConsider a kind of clock: We observe two events: i) the emission of a flash at O’ and ii) the reception of the flash at O’. In this case, ∆x′=∆y′=∆z′=0. The time interval between the two events is c d t ′ ∆′= 2. Now let’s view the same two events from the point of view of another frame, S.
IGCSE PHYSICS - ENERGY, WORK AND POWER (6)
igcsestudybank.weebly.comA clock needs energy to make the hands move. and this energy can be stored in a spring that you wind up with a key, in an electrical battery, or in weights that are raised up. Stored, or hidden, energy is called potential energy (p.e.). In this context 'potential' does not mean 'with qualities that may lead to future success'