How to do a good job in the connection of physics in the first year of high school, and what are the

Summary. The requirements for the articulation of physics teaching in junior high school and high school include: 1

Establish a systematic knowledge system of physics, so that junior high school students can clearly understand the laws, principles and other relevant knowledge of physics; 2.Emphasizing the intrinsic connection between physical laws and principles, and helping students form systematic physical thinking; 3.Focus on experiments and practice, and deepen students' understanding of the laws and principles of physics through experiments and practices; 4.

With a focus on application, it helps students develop their ability to innovate and apply physics knowledge to real-world problems.

The requirements for the articulation of physics teaching in junior high school and high school include: 1Establish a systematic grasp of physics knowledge, so that junior high school students can clearly understand the laws, principles and other relevant knowledge of physics; 2.

Emphasizing the intrinsic connection between physical laws and principles, and helping students form systematic physical thinking; 3.Pay attention to experiments and practice, and deepen Xuexiao Mingsheng's understanding of physical laws and principles through experiments and practices; 4.Focus on application, help students develop their ability to innovate, and apply physics knowledge to practical problems.

And this question.

Good. The design of this teaching experience is reasonable, it covers three parts: knowledge and skills, processes and methods, and emotions, attitudes and values. But I think there are things that could be added to the target design, such as:

Cultivate students' ability to innovate, and learn to think, analyze and solve problems through the process of leverage; Guide students to use the principle of levers correctly to avoid dangerous situations; Guide students to pay attention to the importance of scientific research and improve their confidence in learning science.

Teacher, can you help me write this?

Objectives of the textbook: 1The answer is to explain the connotation of Newton's third law, that is, "the force of action and the force of the reverse wide chain are equal and opposite".

2.Master the principles of force applied and applied to objects. Teaching difficulties:

1.Focus: Understand the connotation of Newton's third law, and grasp the principle of force exerted between objects and the force exerted by the clear reed.

2.Difficulty: Understand the specific process of exerting and exerting forces between objects.

Teaching Methods:1Explanation:

The experimental device is used to carry out experimental operations, so that students can feel the principle of force and force between objects through experiments. Teaching process:1

Introduction: Introduce students to the principles of force and force applied to objects, and introduce Newton's third law. 2.

Experimental operation: Experimental operation is carried out using experimental equipment, so that students can feel the principle of force and force between objects through experiments. 4.

Summary: Summarize what you have learned in this lesson and reinforce your students' understanding of the principles of force and force applied to each other.

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The first question. 1.There is a problem with this question, every once knocked, contrary to the principle of physics, it should be knocked every 5s.

2.In half an hour, Hanshan Temple rang the bell 361 times. 18000 5 = 360 (360 intervals, plus the first and last endpoints, should be 361 times.) ）

3.The boat moved away from Hanzanji Temple at a speed of 15m s, and after half an hour there was a distance of 27,000m. At this time, it is necessary to count the bells that have been rung by Hanshan Temple, but because they are on the way, there are a few bells that have not yet caught the ship.

The speed of sound is 315 meters per second, 27000 (315*5) = because the bell rings every 5s, so the interval between every two rings of the bell of the chasing ship on the road is (315*5), just look at how many such intervals there are in 27000, indicating that there are several rings on the road. , indicating that there are 17 bells that are fully propagated, and one more is ringing, but it has not yet taken the 5s bell, so it should be 17 + 1 = 18 on the road.

4.In half an hour, Hanshan Temple knocked 361 times, and there were 18 sounds on the road, so a total of 361-18 = 343 times were heard.

5.I'm curious, why doesn't any of the explanations on the Internet calculate the sound at the beginning, such as how many bells can be heard in 10s? It should be 3 tones, because there is one at the 0s. Therefore, I insisted that the bell should be struck 361 times in half an hour.

The second question. he

The third question. Whether an athlete can be considered a mass point when participating in the 100-meter race depends on the research question.

1.If you study the athlete's movement, such as the relationship between kinematic variables such as speed, displacement, work done, acceleration, etc., you can treat each athlete as a whole, ignoring its volume, and you can think of it as a particle.

2.If you study the movement state of different parts of the athlete's body at a certain sports moment, such as the question of who crosses the line first in the 100-meter athlete, if there is an athlete who arrives before everyone else, there is no need to watch the video at this time, everyone knows that it is him, and this athlete can be regarded as a quality point. However, if the time of the collision between two people is very similar, it is necessary to examine whose spine crosses the line first, and at this time the athlete cannot be regarded as a quality point.

Judging by the synthesis of motion.

Half an hour knocked ......

Classmates, make it clear. What the?

Hello classmates: The first question is very simple, you can see it intuitively by drawing the analysis diagram yourself. Second: He Third: It can be regarded as a particle. Because the posture of the athlete is not taken into account.

That is, 300 * 1800 150 = 3600 times.

He can't, because the hand movements at the finish line also have some effect.

Answer: The answer is wrong, right? Should be.

Start the clock with a certain sound from the wheels and count the number of times the wheels make a sound. When he counts to 21 times" means that the train passes through 20 rails, so the distance is s=

Speed v = distance s time t = 250 15 =

Analysis: Because the Moon is a satellite of the Earth, it moves in a circular motion relative to the Earth. And the earth is also moving relative to the sun, so it is impossible for the moon to move in a circle with respect to the sun.

Analysis: The displacement elapsed when increasing from v to 2v is s, and the time taken at this time is t. And his speed increases from 2v to 4v, because it is a uniform acceleration linear motion, so the time is 2t, and because of the uniform acceleration linear motion, so in this 2t time, although it is an accelerated motion, the average velocity can be regarded as (2v+4v) 2=3v, so the displacement is s1=3v 2t=6vt

And there is an upward to know that s=, so, s1=6vt

The answer may be wrong)

1. Due to the rotation of the earth, when the ground is used as a reference, it feels like the moon revolves around the earth and forms a circular trajectory.

The moon follows the earth around the sun, but not in a circular trajectory, but in a half-circle like instant noodles.

2、s=v0t+1/2at^2=v0t+1/2dvts=vt+1/2vt=3/2vt

2V increases to 4V S=2V*2T+1 2(2V)*(2T)=6VT displacement is 4S

1.The moon revolves around the earth, and the earth revolves around the sun, and if the sun is used as a reference, then the earth moves in a circle, and the moon is not.

2v)^2=2ax

x=4s

1.Because the Moon also orbits the Earth at the same time2