TOEFL 어휘

rate of change of velocity with time

가속도

relating to sound and its properties

음향의; 소리와 관련된

maximum wave or oscillation departure from equilibrium

진폭

curved structure transmitting loads to side supports

아치; 아치형 내력 구조

join separate parts to make a complete device

조립하다

exert a force drawing an object closer

끌어당기다; 인력을 발생시키다

angle between rotation axis and orbital plane normal

자전축 기울기

line about which a body rotates

축; 자전축

shaft supporting a rotating wheel or part

차축; 회전 부품을 받치는 축

elongated structural member carrying crosswise loads

보; 들보

region with event horizon from within which light cannot escape

블랙홀

inward net force component for curved motion

구심력

structural member carrying mainly axial compression

기둥; 하중을 지탱하는 기둥

pressing together under inward forces

압축; 압축력을 받음

allow electric current to pass through

전기를 통하게 하다; 전류를 전도하다

material that readily allows electric current

도체

principle that total energy of isolated system is constant

에너지 보존

requirement or limit restricting engineering options

설계 제약; 설계 제한 조건

wave spreading near obstacles or openings

회절

measurable extent such as length width or height

치수; 차원

directed change from initial to final position

변위

reflected sound heard separately after original

메아리; 반향

physical property responsible for electrical interactions

전하

interconnected electrical components forming a current path

전기 회로

rate of electric charge flow

전류

machine converting electrical energy to mechanical motion

전동기; 전기 모터

opposition to electric current related to voltage and current

전기 저항

physical quantity transferred as work or heat

에너지

useful service or output relative to energy input

에너지 효율