An electrical contact is an electrical circuit component found in electrical switches, relays and breakers. It is composed of two pieces of electrically conductive metal that pass electrical current or insulate when the gap between them is closed or open.
noun. Schwa is a vowel sound in an unstressed syllable, or the phonetic symbol É which is the International Phonetic Alphabet symbol for schwa. An unstressed syllable in a word, such as the a syllable in ago, is an example of schwa.oun. 1  A mid-central neutral vowel, typically occurring in unstressed syllables, as the final vowel of English sofa. 2  The symbol (&schwa;) used to represent an unstressed neutral vowel and, in some systems of phonetic transcription, a stressed mid-central vowel, as in but.
Consonants are formed by controlling the breath flow and shape of the mouth and tongue. Consonants cannot be spoken alone. Those who think they are teaching a consonant sound are usually adding the schwa sound uh, such as pronouncing b as buh.. Pronouncing a simple word such as cat by sounding kuh-ay-tuh confuses many students. By practicing consonants with different vowels, students can avoid saying uh with each consonant.