TOEFL語彙

cloud of gas and dust in space

星雲

joining light atomic nuclei into heavier nuclei

核融合

move along a gravitationally bound path

軌道を回る；周回する

move repeatedly about an equilibrium position

振動する；往復運動する

moving component fitting inside a cylinder

ピストン

major nearly round body orbiting a star

惑星

energy associated with position or configuration

位置エネルギー；ポテンシャルエネルギー

rate of energy transfer or work

仕事率；出力

grooved wheel guiding a rope or belt

滑車；プーリー

send incident light back from a surface

反射する

change light direction through change of optical medium

屈折する；屈折させる

strengthen a structure with added support or material

補強する；構造の強度を高める

exert a force pushing an object away

反発する；斥力を及ぼす

enhanced response to driving near a natural frequency

共振；共鳴

turn about an axis

回転する；回転させる

turning motion about an axis

回転；自転

ratio of capacity to expected demand in design

安全率

natural or artificial object orbiting a larger body

衛星

moon blocks part or all of sun from observers view

日食

sun and objects gravitationally associated with it

太陽系

mechanical disturbance traveling through a medium

音

rate of distance traveled without direction

速さ；速度の大きさ

self gravitating luminous body sustained by fusion during active life

恒星

force or action that a structure must support

構造荷重

powerful stellar explosion

超新星；超新星爆発

instrument collecting radiation from distant objects

望遠鏡

pulling force transmitted through a stretched member

張力；引張力

planet with a rocky solid surface

地球型惑星；岩石惑星

turning effect of a force about an axis

トルク；力のモーメント