Which experiments can use solid cosmetic packaging material hose?

Optical phenomenon: through the water-filled cosmetic packaging material hose, reading the words on the book, the words will become bigger, this is the phenomenon of light refraction. Put an appropriate amount of milk powder into the water-filled cosmetic packaging material hose, tighten the bottle cap, and shake it well. Pass the light emitted by the laser pointer through the bottom of the bottle and shoot it against the bottle cap, and you will see a light beam that travels in a straight line. obvious. Lie the flashlight on the desktop, place the paper box in front of the flashlight, and place the light beam of the flashlight in the horizontal direction. Fill the circular cosmetic packaging hose with water, and place it horizontally next to the paper box and slightly Above the carton, the beam of the flashlight can be seen, which can explain the principle of sunrise. The round cosmetic packaging material hose filled with water can also be used as a convex lens.

1.2. Electrical phenomenon: Both frictional electrification and plastic non-conductivity can be accomplished with cosmetic packaging material hoses.

3. Mechanical phenomena: pinching a bottle, throwing a bottle, receiving a bottle, etc. can explain the effect of force and the three elements of force. Putting the cosmetic packaging material hose on another piece of paper, and pulling the paper quickly without moving the bottle can explain inertia. It is a heavy vertical line to tie the cosmetic packaging material hose with a thread. There is static friction when holding the bottle vertically without dropping it. Place the cosmetic packaging hose horizontally on the horizontal table. The difference in force when dragging and rolling is the difference between sliding friction and rolling friction. Dragging an empty bottle is better than a full bottle of water. Smaller force means that the smaller the pressure, the smaller the frictional force. Gradually immersing the empty cosmetic packaging material hose in the water can realize that the buoyancy is related to the discharged water and has nothing to do with the depth of the object in the water. The quality of the same cosmetic packaging tube filled with water and alcohol is different because of the different density. Place the empty bottle and the bottle full of water on the sponge, and then put the bottle full of water upside down on the sponge. Observing the depression of the sponge can explore the effect of pressure on the pressure and force area. Pinch the cosmetic packaging material hose to deform it, and then cap it tightly, the bottle will not return to its original shape; fill the cosmetic packaging material hose with water, cover the mouth of the bottle with a piece of hard paper, and then face down so that the piece of paper can hold it. Hold the water; pour a small amount of hot water into the cosmetic packaging material hose and shake it a few times, quickly tighten the cap, flush the bottle with cold water, the cosmetic packaging material hose is crushed; put the balloon into a cosmetic packaging material hose, and use The mouth of the balloon wraps around the mouth of the bottle, so the balloon is not easy to be blown up.