1892349
Questão 1
Questão
What is Charging by Friction
Responda
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Takes place when contact is made between a neutral object and a charged object
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when static charges build up as different materials rub together
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when a charged object is close to a neutral object, the electric field of the charged object produces an attractive force on the neutral object
Questão 2
Questão
What is charging by Contact?
Responda
-
When static charges build up as different materials rub together
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When a charged object is close to a neutral object, the electric field of the charged object produces an attractive force on the neutral object
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takes place when contact is made between a neutral object and a charged object
Questão 3
Questão
An insulator is a material in which electrons cannot move easily from one atom to another, what is an example
Responda
-
rubber
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copper
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aluminum
Questão 4
Questão
An electrical conductor is a material in which electrons can move easily between atoms
Responda
- True
- False
Questão 5
Questão
Water is both an insulator and conductor
Responda
- True
- False
Questão 6
Questão
like charges attract
Responda
- True
- False
Questão 7
Questão
Opposite charges attract
Responda
- True
- False
Questão 8
Questão
Charged and neutral objects repel each other
Responda
- True
- False
Questão 9
Questão
The electrostatic series
Responda
-
is a way to predict what charged will be gained by objects when they are rubbed together.
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are a series of technologies that use static charges in order to accomplish a task
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is a way to tell what is connected in parallel and what is connected in series
Questão 10
Questão
In a series circuit there is only one path in which electrons can flow
Responda
- True
- False
Questão 11
Questão
In a parallel circuit there is only one path along which electrons can flow
Responda
- True
- False
Questão 12
Questão
What is an electric current
Responda
-
A flow of electric charge. Is often carried by moving electrons in a wire. ( A ) Amperes ( I )
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The difference of electrical potential between two points ( V ) Voltage
Questão 13
Questão
The difference of electrical potential between two points is
Responda
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Electrical Current
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Voltage
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Resistance
Questão 14
Questão
What is the calculation of Ohm's law?
Responda
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V=IR
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R=V/I
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I=V/R
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All of the answers
Questão 15
Questão
An ammeter is connected in series in a circuit
Responda
- True
- False
Questão 16
Questão
A voltmeter is connected in series
Responda
- True
- False
Questão 17
Questão
How is the potential difference measured in series
Responda
-
Vt=V1+V2+V3...
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Vt=V1=V2=V3...
Questão 18
Questão
How is the current measured in parallel?
Responda
-
It=I1=I2=I3...
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It=I1+I2+I3...
Questão 19
Questão
What are examples of non-renewable energy sources
Responda
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fossil fuels, coal, oil, and natural gas
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wind energy,solar energy, geo-thermal
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