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为了方便广大考生更好的复习，小编综合整理了SAT2物理常用术语词汇，以供各位考生考试复习参考,希望对考生复习有所帮助。>>免费申请出国留学<<
Wave
A system with many parts in periodic, or repetitive, motion. The oscillations in one part cause vibrations in nearby parts.
Wave speed
The speed at which a wave crest or trough propagates. Note that this is not the speed at which the actual medium (like the stretched string or the air particles) moves.
Wavelength
The distance between successive wave crests, or troughs. Wavelength is measured in meters and is related to frequency and wave speed by = v/f.
Weak nuclear force
The force involved in beta decay that changes a proton to a neutron and releases an electron and a neutrino.
Weber
The unit of magnetic flux, equal to one T · m2.
Weight
The gravitational force exerted on a given mass.
Weightlessness
The experience of being in free fall. If you are in a satellite, elevator, or other free-falling object, then you have a weight of zero Newtons relative to that object.
Work
Done when energy is transferred by a force. The work done by a force F in displacing an object by s is W = F · s.
Work function
The amount of energy that metal must absorb bore it can release a photoelectron from the metal.
Work-energy theorem
States that the net work done on an object is equal to the object’s change in kinetic energy.
小编提醒：单词的记忆要靠长期的坚持，考生们一定要持之以恒，每天都拿出来看一看背一背，让这些词汇在大脑中形成长期记忆，这样就不会轻易地忘记背过的词汇了。
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