ACT科学真题必备词汇(下)

2019-04-13 10:06 1116639次浏览
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  ACT考试是美国大学入学的一条道路,要想通过ACT考试并且取得一个好成绩不是一件容易的事,首先你就得掌握词汇这个能力,词汇是一切的基础,词汇都不知道的话,就不要谈什么ACT考试了。接下来小编就给大家讲一讲ACT科学考试的必备词汇!

  

ACT科学真题必备词汇(下)


  ellipseA geometric shape that is formed when a plane Is Intersected with a cone. Inthis case the plane intersects the cone at an angle so that a shape similar to a circle but stretched in one direction is formed. The orbits of the planets around the Sun represent ellipses.


  endoplasmic reticulumAn organelle that is used to transport proteins throughoutthe cell.


  energyThe ability to do work or undergo change. Kinetic energy is the energy ofmotion, while potential energy is stored energy.


  enzymeany one of the complex proteins that are produced by cells andACTas catalysts inspecific biochemical reactions


  epicycleSmaller circles on which the planets traveled around the Earth in thegeocentric model of the solar system. Epicycles were used to explain the retrograde motion of planets and help make the predicted positions of the planets match the observed positions.


  equilibriumA state at which the forward and reverse reaction proceed at the samerate.


  focal lengthThe distance from a focal point to a mirror or lens.


  forceThat which acts on an object to change its motion; a push or pull exerted onone object by another. Common units are Newtons (N).


  freefallAn object in one-dimensional motion that is only acted on by the force ofthe Earth's gravity. In this case its acceleration will be -g or g downward.


  frequencyThe number of cycles or repetitions per second. Frequency is also oftenmeasured as the number of revolutions per second. The common units of frequency are Hertz (Hz) where one Hertz equals 1/second.


  frictional forceThe force that acts parallel to surfaces in contact opposite thedirection of motion or tendency of motion.


  functional groupA group of atoms that give a molecule a certain characteristic orproperty.


  gel electrophoresisA process used in laboratories to determine the genetic makeupof DNA strands. This process involves the movement of chromosomes through a gel from one pole to the other. Magnetism is used to pull the chromosomes through the gel.


  geology—The study of rocks and minerals.


  glacier—A large mass of snow-covered ice.


  golgi apparatusAn organelle that packages proteins so that they can be sent out ofthe cell.


  gravitational forceThe attractive force that exists between all particles with mass.


  heliocentric modelThe model of the solar system that places the Sun at the centerwith the planets orbiting around it.


  heterogeneousA mixture that is not uniform in composition.


  homogeneousA mixture in which the components areuniformly distributed.


  好了,以上就是小编给大家准备的一些ACT科学考试的一些必备词汇,只有掌握了这些词汇,你才能看得懂题目,才能去解决问题,只有我们平时生活中多努力,多去积累,虽然临阵磨枪,也能光一光,但是毕竟不是长久之计,只有彻底掌握了知识才能取得一个好成绩。好了,如果大家想咨询更多南京ACT培训等内容可以在线咨询我们!


ACT科学真题必备词汇(下)


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