Задание 3. (10 баллов). Кафедра физики и методики преподавания физики

Кафедра физики и методики преподавания физики

Дисциплина: Профессионально ориентированный иностранный язык

Билет №1

Задание 1. (50 баллов) Oral quiz with the brief plan of answer on the theme

1.1Scientific Method Steps & Science Experiments

1.2 Right hand Rule

Задание 2. (40 баллов) Write the short report on the theme

2.1Second Law of Thermodynamics

2.2 Magnetic Fields

Задание 3. (10 баллов)

3.1 The Law of Universal Gravitation was discovered by A) Newton B) Cavendish C) Kepler D) Hooke E) Pascal

3.2 The path through space followed by a projectile. A) Trajectory B) Projectile motion C) Freely falling body D) Acceleration due to gravity E) Kinematic equations of linear motion

1. The scientific method - a set of the main ways to acquire new knowledge and problem-solving techniques in the framework of any science. The method includes methods of investigation of phenomena, organizing, adjusting new and previously obtained knowledge. Inferences and conclusions are made with the help of the rules and principles of reasoning based on empirical (observed and measured) data about the object. - at first. Experiments and observations - hypothesize and build theories - mathematical description - a model of the object studied

The experiment method of investigating a phenomenon under controlled conditions. Features: researcher himself is the phenomenon under study, rather than waiting for when it will occur;-may change the terms of the percolation process being studied;-in the experiment can be alternately exclude certain conditions in order to establish natural connections;-experiment allows to vary the proportion of conditions and implement mathematical data processing.

2. Right-hand rule (rule screw) determines the direction of the induced current in a conductor moving in a magnetic field. If the palm of his right hand arranged so that it included the magnetic field lines and bent thumb direct the movement of the conductor, the four elongated fingers will indicate the direction of the induced current.

3. Second Law of Thermodynamics. It was first formulated by Clausius: "heat itself goes only from the body with a higher temperature to a body at a lower temperature and can not spontaneously move in the opposite direction." Another formulation: all spontaneous processes in nature are going to increase in entropy. (Entropy - a measure of chaos, disorder of the system). When passing in an isolated system of spontaneous processes entropy of the system increases. "Or:" The entropy of an isolated system tends to the maximum "- as spontaneous processes of heat transfer will always occur until there are changes in temperature. If your system of two bodies will be isolated (not closed) and, for example, it enters the heat? It is clear that its entropy will increase even more, as in the preparation of the body heat increases its entropy (dS = dQ / T).

4. Magnetic field - the force field acting on the moving electric charges and the body, possessing a magnetic moment, regardless of their movement [1]; the magnetic component of the electromagnetic field. The magnetic field may be generated by the charged particles and / or magnetic moments of the electrons in the atoms (and other particles of magnetic moments, which usually manifests itself in a much lesser extent) (permanent magnets). The force acting on a moving in a magnetic field of electrically charged particles, called the Lorentz force, which is always perpendicular to the vector v and B [3]. It is proportional to the particle charge q, the velocity component v, perpendicular to the direction of the magnetic field vector B, and the value of the magnetic field B. In the International System of Units (SI), the Lorentz force is expressed as follows:

5. Закон всемирного тяготения был открыт - Ньютон

Дата добавления: 2015-10-16