Looking for proverbs about physical principles

1, snow is not cold, snow is cold (melting absorbs heat)

2, small weight (lever principle)

3, unity is strength, Taishan shift (if the components are in the same direction, the resultant force is equal to the sum of the components. )

4, hemp rope to lift tofu-can not lift it. When the pressure is constant, if the stress area is small, the pressure will be large. )

5. With a long whistle, the mountain valley came in response. People scream in the mountains, and the sound can be reflected many times to form a loud echo, which lasts for a long time, as if the mountains are screaming and the valleys are echoing. )

6. But it doesn't sound like this person. In the process of wave propagation, when the size of the obstacle is smaller than the wavelength, obvious diffraction will occur. )

7, Zhu Bajie looks in the mirror-not people inside and outside. (According to the imaging law of plane mirror, the images formed by plane mirror are equal in size, and the objects are symmetrical, so what Pig Bajie sees is "exactly the same" as himself, and it is still a pig image, so naturally it is "not a person inside and outside")

8. Sit on the ground and walk 80,000 miles every day. (Because radius of the earth is 6370 kilometers, the distance that the surface objects "walk" is about 40003.6 kilometers, which is about 80000 miles, for every turn of the earth).

9. There is nothing to see sitting in a well and looking at the sky. Since light travels in a straight line, we can know from the knowledge of geometric drawing that the frog's field of vision will be very small. )

10, paper can't wrap fire. Paper will burn when it reaches the ignition point. )

1 1. Man struggles upwards and flows downwards. It is an objective law of nature that water flows downwards, because water flows downwards from high places under the influence of gravity. )