info@bestmytest.com Looking for IELTS info?

vibration

Find out how TOEFL Tutor can help you improve your score with a 7 day free trial

definition: 
An oscillation of the parts of a fluid or an elastic solid whose equilibrium has been disturbed or of an electromagnetic wave
sentence: 
In conventional superconductors, vibrations of atoms induce electrons, which normally repel each other, to form pairs
difficulty: 
very easy
toefl frequency: 
2