High School Physics 3 2 Textbook Exercise Answers?

High school physics textbooks cover a wide range of content, many knowledge points, students should review the best module review, which is more conducive to the consolidation of knowledge, the following is the table of contents of the physics elective 3-2 of the people's education version, I hope it will help you.

1 epoch-making discovery.

2** The conditions under which the induced current is generated.

3. Lenz's law.

4 Faraday's Law of Electromagnetic Induction.

5. Two types of cases of electromagnetic induction phenomena.

6. Mutual inductance and self-inductance.

7. Eddy current, electromagnetic damping and electromagnetic drive.

1 Alternating current.

2. Describe the physical quantity of alternating current.

3. The influence of inductance and capacitance on alternating current.

4 transformers. 5. Transmission of electric energy.

1 Sensors and how they work.

2. Application of sensors.

3 Experiment: Application of Sensors.

Appendix is the principle and key points of use of some components.

The parallelogram rule analyzes the small ball, which is subjected to the force of the three celeries, the gravity in the vertical direction, the tensile force in the linear direction, and the repulsion force in the horizontal direction.

The angle is given, the gravity is given, and the horizontal force is x, as long as the resultant force is in the direction along the rope, the horizontal repulsion force can be obtained

The distance between the two balls can be calculated from the angle and the length of the rope, and the charge can be obtained according to the electric field formula of the bucket hall.

1. Due to electrostatic induction, the ball carries the same amount of different charges, and the charged body rotates the motor. The focus of the question is whether the conservation of energy is violated, and the answer is not because work is done when electrostatic induction separates the charged body.

2. Search for the "equal equal division principle" one + 5 q one + 3 q, separate after contact, with 4q respectively; One with +5q, one — 3q, separated after contact, respectively with +q (first neutralized and then evenly divided), conditions: the same pellets.

3. The electric field is an invisible but tangible field (analogous magnetic field) distributed around the field source charge, which is characterized by a strong effect on the charge distributed in it.

4. No, if you want to coincide, you need 1, the electric field line is a straight line 2, the initial velocity of the charged body is zero or the same line as the electric field line.

5. That's right. I'm too lazy to write, I'm a physics teacher, and self-study is easy to form some wrong views, especially in the second year of high school, look at your questions very spiritually, find someone to ask in person. Don't delay.

I'm typing too hard, and I'm going to come up and earn points for the next article.

Don't delay, it's really not possible to look at the higher-level study case, or, go online to "guide the case".

There is charge transfer, forming a small magnetic field.

Four cases, anyway, this is not friction, as long as the two objects have the same heavy charge after the other charges, it is called the Coulomb force, and the action of the electric field is called the electrostatic force, he didn't say it, don't think about it so much, there are many such questions.

Not necessarily, it's similar to a water pipe, where electrons keep colliding, but macroscopically it's true, and sometimes you have to do that.

Awesome, got it right.

All questions can be done with the right method, unless the theory is wrong.

Regardless of consideration, it is enough to judge the positive and negative potential by looking at the initial and final charges.

u ed, is a formula for a uniform electric field, which only calculates the relationship between the magnitude (absolute value) of each quantity.

2. After the charge is contacted or inducted, it will be neutralized, and the amount of electricity is equal, which is half of the sum (with positive and negative calculations).

4. The particles move in the tangential direction of the electric field line, if it is a straight line, the particles will naturally move in a straight line.

4.Also consider the initial velocity of the charged particle and whether it is affected by other forces, and if not, it is along the tangential direction of the electric field line.

2.To see the positive or negative charge 4False, particles may have velocity. 5, right.

The textbook is fully interpreted (by Wang Houxiong).

The foundation of physics refers to your understanding of the concept, and once you understand the concept, all that remains is to analyze the physical process (the more thoroughly you understand the concept, the better the physical analysis will be, and you can avoid mistakes like turning static friction into dynamic friction).

It is not easy to understand physical concepts, if you have a brain like Einstein, of course, there is no problem at all, after all, everyone is an ordinary person, and the only way to better understand physical concepts is to do a lot of problems and understand while doing, which is the most effective method, which is undoubted.

It is easy to solve all the questions in the middle school textbooks, but the questions of your exam and even the questions of the college entrance examination will not be very easy, especially physics, which is even more difficult in the comprehensive theory, and the questions will be difficult to improve the degree of discrimination.

The textbook is fully interpreted (by Wang Houxiong).There are not many questions, the difficulty is on the upper side, which can completely exercise your ability, especially his topic is well chosen, very representative, and very worthwhile.

In addition, learning physics reference books accounts for half of the weight, and the reference book is wrong, at least you have finished the book, and it is a waste of time to go back and make up for it in the third year of high school, so you should be cautious in choosing reference books.

Therefore, if you are good at physics, you will buy at least 3 or 4 reference books to do a large part of the grades are made.

So I recommend: if you don't think it's safe, buy both copies. The complete interpretation of the textbooks is the mainstay, supplemented by the full interpretation of the middle school textbooks, and at least the complete interpretation of the textbooks is completed.

Five-year college entrance examination three-year simulation is very good Come over and recommend people.