Physics Practice

运动学

Kinematics is the branch of physics that describes the motion of objects without considering the forces causing the motion. It focuses on concepts like In the CSCA exam, questions often involve analyzing graphs (position-time, velocity-time), solving problems of constant acceleration, and understanding vector properties of motion quantities. In the CSCA exam, questions often involve analyzing graphs (position-time, velocity-time, solving problems of constant acceleration, and understanding vector properties of motion quantities. Mastery of kinematic equations is essential for success . .

牛顿运动定律

Newton's Laws of Motion are at the heart of classical mechanics and contain three major laws: the law of inertia, the relationship between acceleration and force, and action and reaction forces. In the CSCA Physics exam, this knowledge is often questioned in conjunction with scenarios such as kinematics, force analysis, and connecting bodies, which require candidates to be able to accurately apply the laws to analyze the state of motion of an object and the forces applied to it.

圆周运动与万有引力

This topic covers the laws of dynamics of objects in circular motion and the application of the law of gravity to the motion of celestial bodies. The combined use of the centripetal force formula, Kepler's laws, and gravitational calculations are often tested in exams in relation to specific situations (e.g., satellite orbits, planetary motions), requiring strong physical modeling skills.

动量与冲量

Momentum and impulse are central concepts that describe changes in an object's state of motion. Momentum is a measure of the amount of motion of an object, while impulse is the cumulative effect of forces in time. In the CSCA Physics exam, this knowledge is often combined with collision and force analysis, requiring candidates to use the law of conservation of momentum to perform calculations and understand the importance of vector direction.

功与能

Work and energy are core concepts in physics, focusing on the relationship between work done by forces on objects and energy transformations. In the CSCA exam, this section often examines the application of the kinetic energy theorem and the law of conservation of mechanical energy in conjunction with scenarios such as springs and gravity fields. Questions usually require analyzing the change in energy during motion and calculating the relevant physical quantities.

静电场

Electrostatic Fields The study of electric fields generated by stationary charges and their properties is an important foundation module for the CSCA Physics exam. The section focuses on the understanding and application of core concepts such as electric field strength, potential and Coulomb's law. Questions often incorporate scenarios such as electrostatic equilibrium of conductors and superposition of electric fields, requiring strong analytical and computational skills.

直流电路

DC circuits is a fundamental module in the Physics exam, focusing on the relationship between current, resistance and power at constant voltage. The questions often combine I-U images to analyze resistance properties, series-parallel calculations, and nonlinear components (e.g., diodes). Mastery of Ohm's law and image interpretation is the key to solving the questions.

磁场

Magnetic field is an important concept in physics, which focuses on the study of the forces and laws of motion of magnets, electric currents and moving charges in a magnetic field. In the CSCA exam, this knowledge point is often combined with images to test the direction judgment and magnitude calculation of Ampere's force and Lorentz's force, which requires candidates to be proficient in the application of the left-hand rule and formulas.

电磁感应

Electromagnetic induction is a core concept in physics that describes how changes in a magnetic field produce induced electromotive force and electric current. In the CSCA exam, this knowledge is often examined in conjunction with Faraday's Law and Corrugator's Law through scenarios such as coil motion and changes in magnetic flux, which require candidates to analyze the direction, magnitude, and energy conversion of induced currents.

简谐振动与机械波

Simple harmonic vibrations, which are periodic motions of an object under the action of a repulsive force, are the basis for understanding waves. Mechanical waves are the propagation of vibrations in a medium, and sound waves are typical examples. In the exam, this part of the content is often combined with images to analyze the vibration parameters (e.g., amplitude, period), and to examine the properties of waves (e.g., interference, diffraction, Doppler effect) in the application of practical phenomena.

几何光学

Geometrical optics studies the laws of light propagation in straight lines through a homogeneous medium, focusing on the phenomena of reflection, refraction and total reflection of light and their applications. In the CSCA Physics exam, this section is often examined in conjunction with light path diagrams, requiring candidates to be able to analyze the behavior of light at the interfaces of different media and to compare the propagation properties of different colors of light. Questions usually involve calculations and judgments on concepts such as the index of refraction, critical angle, and speed of light.

物理光学

Physical optics focuses on the study of the fluctuations of light, including phenomena such as interference, diffraction and polarization. In the CSCA exam, this section is often examined through diagrams of experimental set-ups, identification of phenomena and principle analysis questions, which require candidates to be able to distinguish between different optical phenomena and understand the conditions under which they arise.

理想气体状态方程

The ideal gas equation of state is the central formula describing the relationship between pressure, volume, and temperature of an ideal gas, usually expressed as PV = nRT.In the CSCA Physics exam, this point is often examined in conjunction with thermodynamic processes, image transformations, and real-world situations (e.g., piston cylinders), and candidates are required to be flexible in their use of the equation to analyze the change in state of a gas.

分子动理论

Molecular kinetic theory explains the macroscopic properties of gases from a microscopic point of view, modeling the relationship between pressure, temperature and molecular kinetic energy by modeling molecular motion, collisions and interactions. Conceptual identification and microscopic explanations are often combined with Brownian motion, molecular force images, and the ideal gas hypothesis in exams.

热力学第一定律

The first law of thermodynamics is the thermodynamic formulation of the law of conservation of energy, with the core equation ΔU = Q + W, which states that the change in internal energy of a system is equal to the sum of the heat absorbed and the work done on the system by the outside world. In the CSCA Physics exam, this point is often tested in conjunction with the process of changing the state of an ideal gas (e.g., isothermal, isobaric, and adiabatic processes), which requires analyzing the energy conversion relationship and determining the change in each physical quantity.

原子结构

Atomic structure is the basis for understanding the microscopic world of matter, mainly studying the internal composition of atoms (protons, neutrons, electrons) and their arrangement laws. In the examination, it is often combined with α-particle scattering experiments, atomic energy level leaps, spectroscopic phenomena and other classical models, requiring candidates to be able to analyze the experimental phenomena and derive conclusions. This part of the content is highly conceptual, often in the form of multiple-choice questions.

光电效应

The photoelectric effect is a phenomenon in which electrons absorb photon energy and escape when light strikes a metal surface. Its core laws include the cutoff frequency, transient, photocurrent is proportional to light intensity. It is often combined with concepts such as Einstein's photoelectric equation and the suppression voltage in exams for quantitative calculations and to test the understanding of quantum physical ideas.

核物理基础

Fundamentals of Nuclear Physics covers the structure of the atomic nucleus, types of radioactive decay (alpha, beta, and gamma), and nuclear reaction equations. In the CSCA Physics exam, this knowledge is often examined through multiple-choice questions that require identification of the types of decay, balanced nuclear reaction equations, understanding of the concept of half-life, and mastery of the basic principles of mass-loss and nuclear energy calculations.