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The following diagram shows a lightbulb connected to a battery in an electrical circuit. a. Which of the two objects in the diagram below when connected to Point 1 and Point 2 will make the bulb to glow? b. Give a reason for your answer in (a).

Physics

ScanSolve AI Answer

7.
Kulinganisha mabadiliko ya kimwili wakati wa ujana:

  • Wasichana (Girls): Sauti kuwa kali (Voice becoming sharp), Kuongezeka kwa matiti (Enlargement of breasts).
  • Wavulana (Boys): Kuota ndevu (Growth of beards).

8.

a) Kati ya vitu viwili vilivyoonyeshwa, kile kitakachofanya balbu kuwaka kikiunganishwa kati ya Point 1 na Point 2 ni msumari wa chuma (Steel nail).

b) Sababu ya jibu lako katika (a):
Msumari wa chuma ni kondakta (conductor) wa umeme, unaoruhusu mkondo wa umeme kupita na kukamilisha mzunguko. Kigingi cha plastiki ni kizuizi (insulator) cha umeme na hakitaruhusu mkondo kupita.

9.

  • Mchoro (Diagram):

    • Gari la kwanza lina sumaku yenye ncha ya Kusini (S) upande wa kushoto na ncha ya Kaskazini (N) upande wa kulia.
    • Gari la pili lina sumaku yenye ncha ya Kaskazini (N) upande wa kushoto na ncha ya Kusini (S) upande wa kulia.
    • Wakati magari yanapoletwa karibu, ncha ya Kaskazini (N) ya gari la kwanza inakabili ncha ya Kaskazini (N) ya gari la pili.
  • Maelezo ya kilichotokea: Kwa kuwa ncha zinazofanana za sumaku (N na N) zinaletwa karibu, zitapingana. Hii itasababisha magari kusukumana mbali kutoka kwa kila mmoja.

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