Analysis on the difficulty of physics test questions in Nanchang senior high school entrance examination in 2022 to reduce the difficulty and implement the policy of "double drop"
In the past, it was estimated that the difficulty coefficient of the proposition was around 0.65, but students' test scores often failed. This year is the first academic examination after our country has formulated the "double drop" policy. In order to implement the policy of "double reduction" and effectively reduce students' academic burden, this year's examination questions pay more attention to the examination of "double basics", and there are no questions that need to be calculated to get results in fill-in-the-blank questions, multiple-choice questions, experiments and inquiry questions.
Calculation problems are relatively simple in recent years, and many problems can be solved with only one formula.
The difficulty of electrical calculation is also reduced. For example, T 16, the first question is about the current and resistance of the light bulb when it emits light normally, which is often encountered by students in the usual learning process, and students with a little electrical foundation can do it; It is not difficult to find out the resistance value of sliding rheostat and the total power consumed by the circuit.
In the past, the last calculation problem was the electrothermal synthesis problem, which often involved multiple gears. This is a difficult point, but this year's problem has also been avoided and replaced by the efficiency of gas stoves.
In the past, the last question of experimental exploration was mostly extracurricular experiments. This year is an experiment involved in the textbook, which students usually do. This makes it possible for many middle school students to get high scores and the average score has been significantly improved.
From another angle, examine physical fitness.
T 14 option b examines the vertical downward direction of gravity. The topic design allows students to get the correct answer only by comparing the gravity diagram with the direction of the heavy hammer line.
As a basic instrument, the balance is tested almost every year. When the balance is measured in T 18, the pointer leans to the right. Why is the answer in the next operation "Remove the weight of 10 g, then add 5 g to move the traveling code"? The angle of thinking at this time is that the pointer is only slightly biased to the right in the figure, indicating that the mass to be added is less than 10 g, but close to10 g.
T2 1 Explore the conditions for the balance of two forces. The equipment used is not conventional equipment, such as changing the hook code into a mineral water bottle filled with water and changing the crown block into a clothes rack. Some of these questions examine whether students are careful, some examine whether students have the ability to think independently, and some examine whether students can flexibly transfer and use what they have learned.
Pay attention to science and technology and hot topics and strengthen patriotism.
Many materials and current events related to life and technology are one of the sources of materials for the annual senior high school entrance examination. Based on students' real life, the test questions test basic knowledge and skills in real and vivid situations, so that students can feel the close connection between science, technology and society, shorten the distance between physics and real life, production and technology, and truly realize the great application value of physics.
This feature is also reflected in this year's physics test paper. For example, T 1 orange juice pumping embodies the wisdom of the ancient people in China, the opening of T5 Sky Class embodies the great progress of modern science and technology in China, and the scene of T3 Beijing Winter Olympics sublimates students' patriotic feelings, deepens their understanding of the importance of physical exercise and promotes their healthy growth.
These are hot topics in people's lives, which are close to students' reality, can give students a sense of intimacy, guide students to pay attention to the development of modern science and technology, and then enhance their confidence and determination to learn physics well.