21616050
Descripción
Test por CARMEN TECH, actualizado hace más de 1 año
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Creado por CARMEN TECH
hace más de 4 años
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Pregunta 1
Pregunta
In a simple series circuit, why does the bulb light when you close the switch?
Respuesta
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Because the switch produces electricity
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Because closing the switch completes the circuit
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Because closing the switch breaks the circuit
Pregunta 2
Pregunta
In a simple series circuit, why does the bulb go out when you open the switch?
Respuesta
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Because the battery goes flat
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Because opening the switch breaks the circuit
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Because too much electricity flows through the bulb
Pregunta 3
Pregunta
Imagine a simple series circuit with one 1.5V battery and one bulb. When the 1.5V battery is replaced with a 3V battery ...
Respuesta
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the bulb gets brighter
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he bulb gets dimmer
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the bulb stays at the same level of brightness
Pregunta 4
Pregunta
Imagine a circuit with a 1.5V battery and one bulb. Imagine a similar circuit with a 3V battery and two bulbs. Which has the brightest bulbs?
Respuesta
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The circuit with a 1.5V battery and one bulb
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The circuit with a 3V battery and two bulbs
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The bulbs in both circuits are of similar brightness levels
Pregunta 5
Pregunta
Why might a bulb flash and go out when a 1.5V battery and a 3V battery are both connected across it in a simple series circuit?
Respuesta
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There is not enough electricity flowing around the circuit
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Too much electricity flows through the bulb's filament and the bulb blows
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The batteries are flat
Pregunta 6
Pregunta
What is the effect of changing the wire in a circuit from a straight thick wire to a straight thin wire?
Respuesta
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The bulbs become dimmer
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The bulbs become brighter
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The bulbs stay at the same level of brightness
Pregunta 7
Pregunta
What is the effect of changing the wire in a circuit from a straight thick wire to a longer (coiled) thick wire?
Respuesta
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The bulbs become dimmer
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The bulbs become brighter
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The bulbs stay at the same level of brightness
Pregunta 8
Pregunta
In a circuit diagram, what does a circle with a cross inside it represent?
Respuesta
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A light bulb
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A motor
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A battery
Pregunta 9
Pregunta
What do the long straight lines represent in a circuit diagram?
Respuesta
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Motors
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Light bulbs
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Wires
Pregunta 10
Pregunta
How is a battery represented in a circuit diagram?
Respuesta
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A circle with a cross inside it
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A circle with an M inside it
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A long line and a short line
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