Unit Twelve
Physics tells us that the force of gravity makes objects fall to the ground. The unit of force in physics is the ___. A. kilogram B. newton C. meter D. second 相关知识点: 试题来源: 解析 B。本题考查物理名词。选项 B“newton”是力的单位牛顿,符合物理中力的单位。选项 A“kilogram”...
A new and simple technique, zonal unit-gravity elutriation, has been devised for separating very large cells, multicellular complexes, or small organisms from suspensions consisting mainly of small cells. The separation vessel is a conical chamber with an entrance at the lower, narrower part of ...
— No. He is still teaching us physics at our school now. A. is he B. isn’t he C. has he D. hasn’t he ( )41. — Jane, we will leave in five minutes. Are you ready? — No, I ___ my clothes yet. A...
on 8 January, 1942, in Oxford. He went to the University of Oxford to study physics in 1959. At the age of 21, when Hawking spent his first year at the University of Cambridge, physicians discovered he had a rare, slow-progressing form of ALS. He was only expected to live for a ...
1). Group work Divide the whole class into two groups, one group is going to talk about the question “ What do you learn about for each field of science?”, and the other “How are you learning these subjects?” Write down the result of the discussion in a card, and choose the ...
This led to his calculations of gravity. In 1667, he returned to Cambridge and finished his master's 7 . In two years, he became a professor of mathematics. He taught classes on his new discoveries about light and color. He invented 8 reflecting telescope(反射望远镜)in 1668. Newton gave ...
Gravity in physics; C. Disease in medicine. II. The forms of culture are restricted .by natural law as well as man’s biology. A. We eat three meals a day--- not four or five or two. B. No culture provides patterns for jumping over trees or for eating iron ore. III. Culture ch...
For every action there is an equal and opposite reaction. What is force normal? The constant push back force against gravity. What is kinetic friction? Friction you overcome to keep something moving. What is static friction? Friction you have to overcome to start moving something. What are the...
意外收获,额外的好处;奖金;红利 5.gravity n. 重力,引力 6.steam n. 蒸汽动力 7.kettle n. 水壶,壶 8.fibre n. (木材、碳等天然材料的)纤维 [Part 2 闪记·核心短语] 第一组 汉译英 第二组 英译汉 [第一组]1. turn into 变成2. adapt to 适应3. put into operation 使生效;使运转4. be ...