SAT词汇的掌握是大家取得SAT考试好成绩的基础，今天小编为大家提供了有关物理学的词汇，以下是详细内容。

　　Zeroth Law of Thermodynamics

　　If two systems, A and B, are in thermal equilibrium and if B and C are also in thermal equilibrium, then systems A and C are necessarily in thermal equilibrium.

　　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 before 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.