Question

describe an activity that gives an understanding of 'Electrostatic force'.​

Answer 1

Answer:

ACTIVITY: Rub a comb through your dry hair(not oiled hair) for sometime. ... When the comb is rubbed in your dry hair, it acquires a property called electrostatic charge. Electrostatic charge can exert a force called electrostatic force. It is because of this force that the bits of paper gets attracted to your comb.

Answer 2

Materials-

• Hard-rubber comb
• Glass rod
• Piece of silk or nylon
• Two pieces of polystyrene foam
• Two pieces of string or thread
• Ring stand and ring
• Aluminum foil
• Paper
• Towel

Procedure-

Safety Note: Electrostatic forces are very sensitive to the environment. As you conduct this activity, be careful not to get fingerprints on the materials. Do not allow the materials to touch your clothing. Make sure classroom windows are closed. Because humidity greatly affects electrostatic forces, conduct the activity in an air-conditioned room. Do not conduct this activity on a metal table. You may have to repeat each step several times, taking these precautions each time.

1. Clean the hard-rubber comb and glass rob. Remove all of the water with a towel.
2. Tear up the paper into tiny pieces. Make a small pile of the pieces of paper.
3. Set up the ring stand and hanging objects.
4. Observe how negatively charged objects interact. Record all of your observations.
5. Observe how positively charged objects interact. Record all of your observations.
6. Observe how different positively and negatively charged objects interact. Record all of your observations.
7. Observe how objects that are the same except for their charge interact. Record all of your observations.

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