2 centralized memory method: for example, the reflection law of light can be condensed into "three lines are coplanar and two angles are equal"; The imaging law of plane mirror can be condensed as "the object and image are symmetrical, and the left and right are opposite".
3 formula memory method: for example, "an object has inertia, and its inertia property depends on its size, whether it is in motion or at rest".
Comparative memory methods: such as inertia and inertia law, image and shadow, evaporation and boiling, pressure and pressure, series and parallel connection, etc. Compare their differences and connections and find out their similarities and differences.
5 Derivation memory method: for example, deduce the calculation formula of internal pressure of liquid.
6 classification memory method: if the distance per unit time is called speed. The work done per unit time is called power, the mass of matter per unit volume is called density, the pressure per unit area is called pressure, and so on. , all of which can be summarized as "de"
As the name implies, according to the names of buoyancy, tension and supporting force, it is easy to remember the direction of these forces.
8 Causal (conditional) memory method: If judging the conditions of using the left-handed and right-handed rules, you can remember them according to "there is a current in the magnetic field, generating a force, the left-handed rule" and "the force moves in the magnetic field, generating a current, and the right-handed rule".
9 chart memory method: you can use small cards, rotating cardboard, list boxes, etc. Classify and summarize the knowledge content and compile it into a chart for memory.
10 practice memory method: if you make a dynamometer, it can help students remember the knowledge that the elongation of the spring is proportional to the external force.
There are many ways to remember. Either method should be used on the basis of understanding, and it should be used flexibly, not by rote.