Учебное пособие Казань-2016 Сайфуллина М. Н., Хабирова Н. М. English for Physicists
жүктеу/скачать 1,1 Mb. Pdf көрінісі
|
Posobie dlya fizikov Habirova Sajfullina ispravv
| A.
Checking your understanding I. Review questions : 1. What is the main idea of the text? 2. How can work be defined? 3. How do we define Work in physics? 4. What is energy? 5. What is kinetic energy? 6. What types of energy do you know? II. There are several definitions in the text. What are they? Complete the sentences . 1) …is transfer of energy. 2) …is the capacity for doing work. 3) …is energy released in nuclear reactions. 4) … is the generation or use of electric power over a period of time expressed in kilowatt-hours (kWh), megawatt-hours (NM) or gigawatt-hours (GWh). 25 5) … a form of potential energy related to the breaking and forming of chemical bonds. It is stored in food, fuels and batteries, and is released as other forms of energy during chemical reactions. 6) … a form of energy that is transferred by a difference in temperature. 7) … energy of the moving parts of a machine. Also refers to movements in humans. 8) …is when two nuclei are joined together under millions of degrees of heat. III. Are these sentences true or false? 1) The force is equal to the weight of the object. 2) Energy (E) can’t be defined as the capacity for doing work. 3) The simplest case of mechanical work is when an object is standing still and we force it to move. 4) The energy of a moving object isn’t called kinetic energy. 5) There are four types of energy. 6) The first is Kinetic Energy or Energy of Motion, the second is Potential Energy or Stored Energy. 7) To calculate Work, we can’t use the equation W=Fd, where F - force, d - distance. жүктеу/скачать 1,1 Mb. Достарыңызбен бөлісу:
|