# Science Nine Chapter Nine: Question Preview (ID: 4191)

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In a parallel circuit with 2 light bulbs connected in parallel, |
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a) when one light bulb goes out, the other goes out too | b) when one light bulb goes out, the other stays lit | c) when both light bulbs go out, the circuit becomes a series circuit | d) when one light bulb goes out, the other one becomes brighter | |

The point where a parallel circuit branches out is called a |
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a) branch | b) tree | c) junction point | d) load circumventor | |

In a series circuit |
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a) current changes as you pass through the circuit | b) current stays the same throughout the circuit | c) voltage stays the same throughout the circuit | d) voltage increases throughout the circuit | |

In a parallel circuit |
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a) the current entering a junction point is the same as the current leaving a junction point | b) the current entering a junction point is different than the current leaving a junction point | c) the voltage decreases throughout the parallel circuit | d) resistance decreases throughout the circuit | |

Power is measured in |
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a) Joules | b) Watts | c) Amperes | d) Coulombs | |

Energy is measured in |
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a) Joules | b) Watts | c) Amperes | d) Coulombs | |

BC Hydro bills you according to your usage, measured in |
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a) Joules | b) Watts | c) Kilowatt-hours | d) Power | |

Power can be calculated by multiplying |
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a) Resistance x Voltage | b) Current x Voltage | c) Voltage x time | d) Current x time | |

Power can be calculated by multiplying |
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a) Joules x Time | b) Joules / Time | c) Watts x Time | d) Watts / Time | |

An air conditioner uses 1000W, and is on for 12 hours in one day. If it costs $0.10 per kWh, how muich does it cost to use the air conditioner for a day? |
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a) $12 | b) $120 | c) $1.20 | d) $0.12 | |

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