Study

Review Preparation ToP 3

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  • The other name of series circuit and parallel circuit
    End to end, side by side
  • How coal was formed?
    Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests. Layers of dirt and rock covered the plants over millio
  • Draw the symbols for a cell, switch, and lamp
    look at the picture
  • What do you know about energy?
    energy is the ability to do work. In other words, everything that can do work has energy. In the case of energy, doing work is also known as causing or making c
  • If you rub polythene with ........., the electron will move from ..........to ......... So, polythene become........ charge and the ................. become ........ charge.
    wool, wool, polythene, negative, wool, positive
  • What will happen if we use more lamps in a circuit with the same number of battery?
    The lamp will be not too bright
  • Mention an experiment that you have tried before about static electricity
    Balloon with hair and small paper
  • What will happen if we add more cells in a circuit?
    The lamp will be bright/ the current will be increased, the voltage will increased
  • mention 3 examples of non-renewable energy resources
    coal, nuclear, natural gas
  • Why metal able to conduct electricity?
    Because contain a lot of electrons
  • Positive and negative charges will ............. each other, and Positive and positive charges will.............each other
    attract , repel
  • Atom are made up from some charged particle, inside nucleus, there are .............and ............. charged , in shell the charged is ........................
    positive, neutral,negative
  • The name of instrument that use to measure voltage is ...................., the unit of voltage is ................
    voltmeter, volt
  • The current/ energy flow from ............pole to ............. pole of the cell
    positive, negative
  • mention 3 example of renewable energy
    wind, water, sun energy
  • 13. The name of instrument that use to measure electric current is ............, the unit of electric current is .......................
    ammeter, ampere
  • What will happen if we add resistor in a circuit?
    The current will be decreased/ move slower
  • If you rub acrylic with ................ , the electron will move from ............ to .................... So, acrylic become ............... charge and the ............ become ............ charge.
    cotton, acrylic, cotton, positive, cotton, negative
  • The electrons flow from ..............pole to ......... pole of the cell in a circuit
    negative, positive
  • Mention 3 examples of conductor and insulator electricity
    Conductor: gold, copper, iron Insulator: Plastic, wood, fabric, glass
  • Mention 3 types of fossil fuels
    coal, oil, natural gas