34288911
Descripción
Test por Teacher Scott, actualizado hace más de 1 año
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Creado por Teacher Scott
hace casi 3 años
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Pregunta 1
Pregunta
Which of the following is a source of electricity?
Respuesta
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Image:Strike (binary/octet-stream)
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Image:28723 (binary/octet-stream)
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All are sources of electricity
Pregunta 2
Pregunta
Look at the before and after pictures. What happened?
Respuesta
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Positively charged particles transferred from the towel to the balloon.
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Negatively charge particles transferred from the towel to the balloon.
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Nothing happened. They're both the same.
Pregunta 3
Respuesta
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light bulb
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battery
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switch
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current
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particle
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wires
Pregunta 4
Respuesta
- True
- False
Pregunta 5
Pregunta
The steady flow of electric charges is called
Respuesta
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charges
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current
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particles
Pregunta 6
Pregunta
Which of the following is an example of an electrostatic discharge or the release of static electricity.
Respuesta
Pregunta 7
Pregunta
Static electricity can happen when a person brushes their hair.
Respuesta
- True
- False
Pregunta 8
Pregunta
An electric current needs a path to flow along, also called a . . .
Image:
Icon (binary/octet-stream)
Respuesta
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circuit
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battery
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power source
Pregunta 9
Pregunta
Examples of conductors are:
Respuesta
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dry wood and most plastics
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copper and steel
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drinking water and rubber
Pregunta 10
Pregunta
Substances that do not allow electricity to pass through them are:
Respuesta
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conductors
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cells
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insulators
Pregunta 11
Pregunta
If you were going to build an electrical circuit, which of the following items would NOT be part of it?
Respuesta
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Power source, such as a battery
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Electrical appliance, such as a light bulb
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Wires made of gold
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Wires made of plastic
Pregunta 12
Respuesta
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repel
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attract
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do nothing
Pregunta 13
Pregunta
Why are electrical wires covered with plastic or rubber?
Respuesta
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Plastic and rubber are nice materials to touch.
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Smooth materials keep wires warm.
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Plastic and rubber are good electrical insulators.
Pregunta 14
Pregunta
Which of the following does a light bulb do?
Respuesta
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Change electrical energy into light energy
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Change light energy into electrical energy
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Change light energy into thermal energy
Pregunta 15
Pregunta
To repel means to . . .
Respuesta
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jump
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Push away
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Pull to you
Pregunta 16
Pregunta
Static electricity flows in the same direction.
Respuesta
- True
- False
Pregunta 17
Respuesta
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repel
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attract
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do nothing
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