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Anonymous users2024-02-06Chapter 1 Electrostatic Fields.
1. Electric charge and its conservation law.
2. Coulomb's law.
3. Electric field strength.
4. Electric potential energy and electric potential.
5. Potential difference.
6. The relationship between the potential difference and the strength of the electric field.
7. Application of electrostatic phenomenon.
8. Capacitance of the capacitor.
9. The motion of charged particles in an electric field.
Chapter 2 Constant Current.
1. Power supply and current.
2. Electromotive force.
3. Ohm's law.
4. Series circuit and parallel circuit.
5. Joule's law.
6. The Law of Resistance.
7. Ohm's law for closed circuits.
8. Multi-meter.
9. Experiment: Determine the electromotive force and internal resistance of the battery.
10. Simple logic circuit.
Chapter 3 Magnetic Fields.
1. Magnetic phenomena and magnetic fields.
2. Magnetic induction intensity.
3. Several common magnetic fields.
4. The force of the magnetic field on the energized wire.
5. The force of the magnetic field on the moving charge.
6. The motion of charged particles in a uniform magnetic field.
Research on the Hall Effect (this is basically ignored) Appendix Vernier calipers and spiral micrometers (will make you read in the lab questions of the exam) This is an elective 3-1 catalog, purely hand-typed.
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Anonymous users2024-02-05The knowledge points are as follows:
The knowledge points of high school physics elective 3-1 include electric charge, Coulomb's law, electric field strength, electric potential, electric potential energy, current resistance, etc., and the difficulty has changed greatly compared with junior high school.
The amount of charge: the amount of charge. In the International System of Units, its unit is the coulomb and the symbol is c.
Metacharge: The absolute value of the charge carried by electrons and protons, the amount of charge of all charged bodies is equal to e or an integer multiple of e. Bihe:
The ratio of the amount of charge of a particle to the mass of the particle.
Introduction:
Physics is the study of the most general laws of motion of matter and the basic structure of matter. As a leading discipline in the natural sciences, physics studies the most basic forms and laws of motion of all matter, from the universe to elementary particles, and thus becomes the research foundation of other natural science disciplines.
Physics began in the days of Galileo and Newton, and it has become a fundamental science with many branches. Physics is an experimental science, and it is also a science that advocates rationality and attaches importance to logical reasoning. Physics makes full use of mathematics as its working language, and it is one of the most sophisticated natural sciences today.
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Anonymous users2024-02-04I have 3-1 courseware and can't upload it. Leave your email and I'll send it to you!
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Anonymous users2024-02-03You can go to the education network to find it, which is more detailed.
In fact, gravity is a virtual force, which does not actually exist, it is just people's feelings; The gravitational force experienced by the object is equal to the vector difference between the gravitational force experienced by the object and the centripetal force required for the object to rotate with the Earth; The magnitude of gravity is also equal to the magnitude of the ground support force f on which the object is placed on the level ground, and it is considered that the gravity and support force f are equal in magnitude and in opposite directions; Such a treatment is limited to not considering the statics and dynamics of objects on or near the ground at the time of the Earth's rotation. >>>More
When the rope is disconnected, the speed of the ball and the elevator is v, and after the time t the ball meets the elevator floor (that is, the ball falls on the bottom plate), take the vertical upward direction as the positive direction, then: >>>More
The resistance experienced by the bullet when it enters A is A, the interaction force with the bullet. And the time is extremely short, so the bullet, a momentum is conserved. >>>More
1. Learn mathematics well, mathematics is the language of physics. >>>More
Hello landlord, it may be two, because when the force f in the upper right direction, and then the pull force in the vertical direction = mg, the pressure of the object on the ground is zero, so the object is not supported by the force, only by gravity and tension, if there are any questions, welcome to ask, hope! Thank you!