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

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In a parallel circuit with 2 light bulbs connected in parallel,
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
a) branch
b) tree
c) junction point

In a series circuit
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
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
a) Joules
b) Watts
c) Amperes
d) Coulombs

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

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

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

Power can be calculated by multiplying
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?
a) \$12
b) \$120
c) \$1.20
d) \$0.12

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