Answers to physical phenomena in life, 50 physical phenomena in life and their explanations?

When you walk, the speed is slow, and you treat your human body as a cross-section, and in the same amount of time, the faster ones pass longer distances, and the more the raindrops hit you. If you walk 25 meters in one minute, you get 25 meters in the rain, and if you ride 150 meters in a minute, you get 150 meters in the rain. In the same amount of time, you get a lot of rain on your bike, and of course the rain "gets heavier"!

In the rain, no matter whether your speed is fast or slow, in the same time, your total rainfall is the same, the reason why you feel that the rain is heavy is the illusion that your vision receives, just like the trees on both sides of the road, when you walk slowly, you think they are very sparse, but when you drive, you feel that they are very dense, the same way.

This should be the reason for the speed, if you ride slowly, you won't feel that big.

The plane is flying at high altitude, and if it hits a small bird, it may crash, because the plane flies too fast, and the force generated at the moment of collision will be very large.

If each raindrop is 1 meter away from each other and the walking speed is 1 meter per second, then there is one drop of rain per second, and if the cycling speed is 2 meters per second, then there are 2 drops of rain per second, and the cycling speed is 3 meters per second, there are 3 drops per second.

There is also a certain speed at which the raindrops fall, and the walking raindrops do not feel pain when they fall on the face, but the speed of cycling is fast, which is equivalent to hitting the raindrops, and the faster the speed, the greater the force of the collision.

Well, when I was riding, there were more raindrops on my body, and the intensity was stronger, so I felt that the rain was heavy.

The speed is not the same, and the number of raindrops per unit of time is different.

1. Snow is not cold and snow is cold - snow is heated, and snow is heated.

2. Water flows lower – gravitational pull.

3. Feeling pain when falling to the ground - action and reaction force.

4. Brake fall - inertia.

5. Sprinkle salt on the road – lower the melting point of the snow.

6, the mothballs are missing - sublimation.

7. Thermometer - thermal expansion and cold contraction.

8. Rub your hands to keep warm - do work to change internal energy.

9. It is forbidden to throw objects from high altitudes - the potential energy of gravity is converted into kinetic energy.

10. The red light is used as a warning light - the red light has a long wavelength.

11. Chopsticks broke when placed in water - the refraction of light.

12, 3D film - polarized light.

13. Figure skating – conservation of angular momentum.

14. Echo – Sound waves can be reflected.

15. The partition wall has ears - the diffraction of sound waves.

16. Swimming ring – buoyancy.

17. Deep-sea fish will die when they catch it - there is pressure inside the liquid.

18, jack – Pascal's principle.

19, compass.

Guide – There are magnetic poles on Earth.

20. Swap the hose for the water in the fish tank – the siphon principle.

21. Induction cooker heating - ampere.

Eddy current principle.

22. Microwave oven heating - molecular resonance changes internal energy.

1. The mothballs are missing - sublimation.

2. Brake fall - inertia.

3. Water flows to a lower place - gravitational attraction.

4. Feeling pain when falling to the ground - action and reaction force.

5. Sprinkle salt on the road – lower the melting point of the snow.

6. Chopsticks are broken when placed in water - the refraction of light.

7. Figure skating - conservation of angular momentum.

Physics] [Liquefaction, Sublimation and Condensation] - The lower temperature of gas liquefaction.