477423
Descrição
Quiz por alex.examtime9373, atualizado more than 1 year ago
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Criado por alex.examtime9373
quase 11 anos atrás
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Questão 1
Questão
What is the unit of electric charge
Responda
-
Newton
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Coulomb
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Newton/ Coulomb
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Volt
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Watt
Questão 2
Questão
Rubbing a Perspex rod with a cotton cloth causes the rod to become positively charged.
Responda
- True
- False
Questão 3
Questão
An insulator is a substance through which electric charge can flow.
Responda
- True
- False
Questão 4
Questão
Which of the following materials are conductors?
Responda
-
Glass
-
Metal
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Plastic
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Electrolytes
Questão 5
Questão
Where does static charge reside on a conductor?
Responda
-
The inside of a conductor
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Where the conductor is most pointed
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It depends on whether the conductor is negatively or positively charged
Questão 6
Questão
What instrument is used to demonstrate point discharge?
Responda
-
Van de Graaff generator
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Gold leaf electroscope
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Electricity running through a container of oil and semolina
Questão 7
Questão
According to Coulomb's Law, the electrostatic force between two charges increases when the distance between them is increased.
Responda
- True
- False
Questão 8
Questão
What is the formula for electric field strength?
Responda
-
Electrostatic force x charge
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Electrostatic force x distance
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Electrostatic force/ distance
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Electrostatic force/ charge
Questão 9
Questão
Calculate the electric field strength at a point where a 6 C charge experiences a 3 N force.
Responda
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18 N C
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0.5 N/C
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2 N/C
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2 C/N
Questão 10
Questão
For an object to be charged by induction, the conductor must be touched with the charged object.
Responda
- True
- False
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