Quiz
Electrostatics
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Questions in this quiz (5)
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.- Aface down
- Bpositively
- CLight
- Dneutral
- Etoner
- Fnegatively
- Gattracted
- Hheated
2Sparks from static electricity can
- ACause heart attacks
- BCause fires
- CCause burns, including internal burns
- DDamage electrical equipment
- ECause cancer
- FMake someone feel sad
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.- Anegatively
- Belectrons
- Cpositively
- Dknocked
- Edisposed
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.- Apositively
- Bpositively
- Crepel
- Dnegatively
- Eattracts
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.- Ainsulated
- Bpower
- Cdirect
- Dpositive
- Einsulated
- Fstand back
Information
- Description
- Year 7 Physics Quiz on Electrostatics, created by Jasleen Sandhu on 28/01/2019.
- Author
- Jasleen Sandhu
- Language
- English
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