IB Physics Glossary
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Eclipsing binary stars
are identified by a periodic dip in their combined brightness-time curve.
is the ratio of useful power of a system to the input power or the ratio of useful energy transformed to the total energy input. (d)
Approximate overall energy efficiencies for different types of power station are Coal: 35%, Gas: 45% & Oil: 38%.
occur when the total kinetic energy of a system remains constant.
Electric field strength
Electric Potential Difference
is the work done per unit charge in moving a small positive charge between two points. (d)
Electrical circuit symbols