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Science

Static Electricity

Grade 9 · Middle School

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  1. Question 1 of 20Easy

    Two objects with like electric charges will ...

  2. Question 2 of 20Easy

    Two objects with unlike electric charges will ...

  3. Question 3 of 20Easy

    The SI unit of electric charge is ...

  4. Question 4 of 20Easy

    The device used to detect the presence of electric charge is ...

  5. Question 5 of 20Easy

    A plastic ruler rubbed against hair becomes electrically charged because ...

  6. Question 6 of 20Easy

    The subatomic particle that carries a negative charge is ...

  7. Question 7 of 20Medium

    Coulomb's law states that the electric force between two charges ...

  8. Question 8 of 20Medium

    If the distance between two charges is doubled, the Coulomb force becomes ...

  9. Question 9 of 20Medium

    If one charge is doubled while the other charge and the distance stay the same, the Coulomb force becomes ...

  10. Question 10 of 20Medium

    A neutral object can become charged by bringing a charged object near it without touching. This process is called ...

  11. Question 11 of 20Medium

    Which of the following is an electrical insulator?

  12. Question 12 of 20Medium

    The region around an electric charge that is still affected by electric force is called ...

  13. Question 13 of 20Medium

    The direction of electric field lines around a positive charge is ...

  14. Question 14 of 20Medium

    Charging an object by rubbing it against another object is called charging by ...

  15. Question 15 of 20Hard

    Two charges of 2 x 10^-6 C and 3 x 10^-6 C are 0.2 m apart. If k = 9 x 10^9 N m^2/C^2, the Coulomb force between them is ...

  16. Question 16 of 20Hard

    The Coulomb force between two charges is F. If the distance is made three times larger, the force becomes ...

  17. Question 17 of 20Hard

    An object carries a charge of 4.8 x 10^-19 C. If one electron carries 1.6 x 10^-19 C, the number of electrons added to the object is ...

  18. Question 18 of 20Hard

    A test charge of 2 x 10^-6 C experiences an electric force of 4 x 10^-3 N. The electric field strength at that point is ...

  19. Question 19 of 20Hard

    Look at these statements! (1) Like charges repel. (2) Coulomb's force is inversely proportional to distance. (3) Electric field lines point away from a positive charge. (4) Electrons are positively charged. The correct statements are numbers ...

  20. Question 20 of 20Hard

    Two like charges Q1 = 4 C and Q2 = 9 C are separated by a distance r. The point with zero electric field strength is located at a distance of ... from Q1.

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Static Electricity — Science Grade 9 · Middle School — Question Bank — Nuvora