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Quiz

Electrostatics

Jasleen Sandhu 5 perguntas

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Perguntas do quiz (5)

  1. 1Photocopiers and laser printers
    1) The original print is placed [blank_start]face down[blank_end] on the screen of the photocopier.
    2) The plate is [blank_start]positively[blank_end] charged.
    3) An image of the sheet is projected onto the screen. [blank_start]Light[blank_end] causes charge to leak away, leaving those areas [blank_start]neutral[blank_end].
    4) The [blank_start]toner[blank_end] particles are [blank_start]negatively[blank_end] charged and are [blank_start]attracted[blank_end] to the positively charged areas.
    5) The sheet of paper is placed on top of the screen and [blank_start]heated[blank_end] so the toner sticks.
    1. Aface down
    2. Bpositively
    3. CLight
    4. Dneutral
    5. Etoner
    6. Fnegatively
    7. Gattracted
    8. Hheated
  2. 2Sparks from static electricity can
    1. ACause heart attacks
    2. BCause fires
    3. CCause burns, including internal burns
    4. DDamage electrical equipment
    5. ECause cancer
    6. FMake someone feel sad
  3. 3Electrostatic dust precipitators
    1) Smoke particles become [blank_start]negatively[blank_end] charged as they gain extra [blank_start]electrons[blank_end].
    2) Smoke particles are attracted to the [blank_start]positively[blank_end] charged metal plates.
    3) The metal plates are [blank_start]knocked[blank_end] to remove the smoke particles.
    4) The smoke particles are [blank_start]disposed[blank_end] of and waste gases are released into the atmosphere.
    1. Anegatively
    2. Belectrons
    3. Cpositively
    4. Dknocked
    5. Edisposed
  4. 4Paint spraying
    1) The spray gun looses electrons, becoming [blank_start]positively[blank_end] charged , so each particle becomes [blank_start]positively[blank_end] charged as it leaves the gun.
    2) Like charges [blank_start]repel[blank_end] each other so the paint particles spread out.
    3) The object gains electrons, it becomes [blank_start]negatively[blank_end] charged and [blank_start]attracts[blank_end] the paint particles.
    4) The paint dries and sets hard.
    1. Apositively
    2. Bpositively
    3. Crepel
    4. Dnegatively
    5. Eattracts
  5. 5Defibrillators
    1) Two paddles with [blank_start]insulated[blank_end] handles are charged from a [blank_start]power[blank_end] supply.
    2) The paddles are put in [blank_start]direct[blank_end] contact with the patient's chest.
    3) Electrons flow from the negative paddle to the [blank_start]positive[blank_end] one, through the heart. The paddles have [blank_start]insulated[blank_end] handles and the operator tells any one nearby to [blank_start]stand back[blank_end] to ensure no body gets shocked.
    1. Ainsulated
    2. Bpower
    3. Cdirect
    4. Dpositive
    5. Einsulated
    6. Fstand back

Informações

Descrição
Year 7 Physics Quiz sobre Electrostatics, criado por Jasleen Sandhu em 28-01-2019.
Idioma
English
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0
Etiquetas
physicsyear 7
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