The electric field of a balloon
A charged balloon is brought close to the multimeter.
A digital multimeter is the connection of two simpleMeßstrippen already so highly sensitive to the presence of electric fields, that a balloon is sufficient to indicate voltage.
How does it work this simple electricity experiment for kids?
The balloon is electrically charged by placing it on aWollpullower or a t-shirt or the carpet rubbing. When theballoon is charged, then it produces an electrical field. This electric field is the multimeter ”hunted” and can be measured.
Often one can feel the rubbing of the balloons had a tingling sensation on the skin or hear a crackling sound, then these
are tiny arcing caused by the electrical voltage.
Simple electricity experiments for kids 2: A continuity tester - electrical conductors and insulatorsare
A simple experimental setup allows the investigation of the differences between electrical conductors and non-conductors (insulators).
The children will experiment with various materials (metals, paper, ceramics, etc.) and hold the ends of the two connectors. In electrical conductors, such as for exampleCopper closes the circuit and the lamp lights.
In selecting the materials to the ingenuity of the childrenare no limits to plastic, wood, metal, glass, paper, cardboard, stones, foil, wood, wool, metallic wool, etc.Everything must be tested.
Because of this continuity tester is portable, it can becarried around in and around the house and test it also surfaces such as exterior plaster, metal snow shovel, etc..I believe that such self-conducted experiments where theexperimental curve is determined by the children remainthe most memorable and provide a formative experience.
In this simple electricity experiments for kids you need:
- light bulb
- some wire
Attempt to see extra cables with connectors in the pictureare not absolutely necessary.
Simple electricity experiments for kids 3: Electric fields with wool threads visible
A couple of woolen cords were hung from a pole and todemonstrate the presence of an electric field. They are so good because they are very light.
The electric field we produce with an inflated balloon thatwas rubbed on a T-shirt.
If the air is very dry, then you hear the rubbing of theballoons had a crackling sound. These are small arcing,which we can perform acoustically. They arise as a littlemini storm, as is established by the charge separation, ahigh electric field. Who wants to take this opportunity totake the children into a completely darkened
room. Again,we rub the balloon on the T-shirt, then we can see thateven small arcing.
If one approaches the charged balloon to the woolen strings, then we will immediately, depending on the chargeto see that the strings are either attracted or repelled.
A true phenomenon can also be seen: The cords are repelled at their head, but in its entirety from balloonsdrawn. Because a piece of wool is an electrical non-conductor, one can assume that the electric charge isdistributed differently on the thread.