Physics research methods include experiment, model, deduction, induction, hypothesis, observation, simulation, idealization, analogy and control variables.

1, experimental method

Experimental methods play a fundamental role in physics research. It is a method to obtain objective data and observation results by directly intervening and regulating natural phenomena. There are two basic forms of experimental methods: confirmatory experiment and exploratory experiment. Confirmatory experiments aim at verifying the correctness of existing theories, while exploratory experiments focus on discovering new phenomena and exploring unknown fields. Einstein's relativity experiment verified the prediction of relativity by accurately measuring the relationship between light speed and time.

2. Model method

Model method is an important tool in physics research, which helps scientists understand and explain natural phenomena by establishing simplified physical models. Physical models can be divided into visual models, abstract models and mathematical models according to their forms of expression. Visible models such as atomic nuclear structure model, abstract models such as wave function in quantum mechanics, and mathematical models such as Maxwell equations used to describe electromagnetic fields. The model method can not only express physical phenomena intuitively, but also analyze and predict experimental results theoretically.

3. Deduction method

Deduction is a logical reasoning method, which is widely used in physics research. It starts from known axioms, theorems or assumptions and draws new conclusions or inferences through logical reasoning. A typical example of deduction is Euclidean geometry. Based on axioms and theorems, various geometric formulas and theorems are derived. In physics research, deductive method can help scientists deeply understand the inherent laws of physical phenomena and deduce new theoretical predictions.

Physical common sense

1, quartz clock hanging on the wall, when the battery runs out and stops, its second hand often stops at 9 on the dial. This is because the second hand is most hindered by the large torque at position 9. ?

2. Sometimes, when tap water flows from the adjacent faucet, it occasionally makes bursts of noise. This is because the water pipe vibrates when the water rushes out of the tap.