Current location - Education and Training Encyclopedia - Educational Knowledge - The first volume of the eighth grade physical phenomena and explain what they are.
The first volume of the eighth grade physical phenomena and explain what they are.
The eighth grade physics phenomenon and its explanation, the first volume is as follows:

1. In summer, beer bottles taken out of the refrigerator will sweat: water vapor will liquefy into small water droplets and attach to the bottles when it is cold.

2. Frozen flowers on the windows in winter: condensation of water vapor.

3, wake up in the morning to see fog: the phenomenon of water vapor liquefaction in the air.

4. Frozen clothes will dry out in winter: sublimation of ice.

The boiling point of water is different at different time and place: the difference of atmospheric pressure.

6. Water can only boil jiaozi white, and oil can fry jiaozi yellow: the boiling point of oil is higher than that of water.

7. Mirage phenomenon: the light is deflected due to the uneven atmosphere.

8. The image of an inverted pinhole: the straight-line propagation of light.

9. A flat mirror can image: the reflection of light.

10. Chopsticks that reach into the water are curved: light enters another medium obliquely and refracts.