-Activity 2

-Activity 3

-Activity 4

-Activity 5

Describe what happen on the charges on the metal plate. Answer. ACTIVITY 3. Electrostatic Induction in Electroscope DIRECTIONS: Draw the correct orientation of charges in electrostatic induction in electroscope. Draw your answer in the empty box. (10 points) 1. BRINGING NEGATIVELY CHARGE OBJECT TO AN ELECTROSCOPE Describe what happen on the the electroscope during electrostatic induction. Answer: 2. WHEN CHARGED OBJECT IS REMOVED FROM ELECTROSCOPEExample plastic rod Figure 1 In figure 1, electrical charges in the conductor or in the metal are redistributed as the rod is draw near in the metal plate. Nevertheless, by the time the electrically charged object (plastic rod) is removed, the charges in the conductor interact or intermingle again. So, the electrical charging is temporary. ELECTROSCOPE An electroscope is an instrument used to detect the presence of electric charge on a body. It detects charge by the movement of a test object due to the Coulomb electrostatic force on it. Electrostatic induction is also applicable in electroscope. If you draw near a charged object such as the plastic rod near an electroscope, the opposite charges will move toward the metal end of an electroscope as shown in the illustration below. In the same illustration, the negative charge(-) in the plastic rod attract the positive charge (+) in the metal shaft of the electroscope. The electrical charges in the metal shaft are redistributed while the negative charges are on the leaves at the lower shaft. The leaves of the electroscope push apart because to the electrical force where the charges are the same (negative charges repel negative charges). Plastic Rod E Metal shaft + + + + Electroscope leave electroscopeACTIVITY 2. Draw the Charges DIRECTIONS: Draw the correct orientation of charges in electrostatic induction In the illustration given below. Draw your answer in the empty box at the right. (10 points) NOTE: Assume that the upper illustration is charged object and the lower part is metal plate.Describe what happen on the electroscope during electrostatic induction Answer. ACTIVITY 4. ESSAY DIRECTIONS: Write your idea briefly but substantially in the following situations 1. Electromagnetic induction in a plastic rod and metal plate. 2. Electromagnetic induction in electroscope and charge object 3. Electromagnetic induction in charged object and nonconductors ACTIVITY 5. INDUCTION ON A NONCONDUCTOR Experiment Materials: comb and tissue paper Procedures: 1. Tear off several bits of tissue paper. 2. Bring the comb near to the bits of tissue paper. 3. Describe what happens. 4. Then rub your hair with the comb, 5. Bring near the comb to the tissue paper. 6, Describe what happens Guide Questions: 1. Why does the comb attract the pieces of tissue paper when you rub the comd Into your hair? 2. Explain the electrification that takes place in the comb.Electroscopes leaves separate because of electrical charges Metal shaft Electroscope leave of electroscope Electroscopes leaves go back to its original position When the charged plastic rod is removed, the leaves of the electroscope go to its original position and the electrical charges in the latter will interact again. The leaves will not repel anymore because the charges in the leaves are opposite. ELECTROSTATIC INDUCTION IN NON-CONDUCTORS Non-conductors or insulators can undergo also the process of electrostatic induction. These non-conductors can be given static electric charge nevertheless electrostatic induction In non-conducting materials is least effective because the movement of charge is constraint. Although electrostatic induction is possible to nonconducting or dielectric materials, the movement of electrical charges is much more constrained in nonconductors than in conducting materials. In, conductors' electrons are allowed to move freely that cause electricity. In a nonconductor, separation of charged particles does not work because electrons are constrained, Nevertheless, if the nonconductor consists of polar molecules the electrostatic induction may be possible. The latter will cause the molecules to be with the positive charges (+) and the other side with negative charges (-). Polar molecules are molecules that has one side more positive that the other side. For example: water is polar molecule so water can be slightly attracted to a static electric charge that is why if you draw near a charged object to a water the stream of water will eventually bend. A tissue and small pieces of Styrofoam which are nonconductors can be also attracted by a charge object through electrostatic induction Learning Competency Describe experiments to show electrostatic charging by induction. (STEM_GP12EM- Illa-3)GENERAL PHYSICS 2 Name: Date: Grade Level: Score: LEARNING ACTIVITY SHEET ELECTRIC CHARGE, COULOMB'S LAW, ELECTRIC FIELDS, AND ELECTRIC FLUX Background Information for the Learners (BIL) ELECTROSTATIC INDUCTION Electrostatic induction is a process to produce static electricity in an object by drawing near to an electrically charged material. The former will cause the electrical charges to be reallocated in the material that will result in one side having an excess of either positive (+) or negative (-) charges. Electrostatic induction or Induction charging is a method used to charge an object without touching. This method will cause the redistribution of electrical charges on a material ELECTROSTATIC INDUCTION IN CONDUCTORS Electrostatic induction is most effective when materials are conductors just like metals. Metals are good conductors. In electrostatic induction, once you remove the electrically charged object, the conductor loses its charge Temporarily grounding the conductor must be done to solve this phenomenon. Electrical conductors in neutral state has an equal number of (+) and negative (-) electrical charges Equal number of positive ions and negative ions and electrons interacts within the conducting material. When an static electrically charged is brought near to an electrical conductor, the electrical charges on or near the surface of the electrically charged object attracts the opposite charges in the conductor and repel the like charges The law of attraction and repulsion is observed in this phenomenon. Unlike charges attract, therefore a positive charge(+) will attract a negative charge(-J. Like charges repel, therefore a negative charge (-) will repel a negative charge (-) and vice versa