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Science Nine Chapter Nine
Test Description: Science 9 Chapter 9
Instructions: Answer all questions to get your test result.
1) In a parallel circuit with 2 light bulbs connected in parallel,
A
when one light bulb goes out, the other stays lit
B
when both light bulbs go out, the circuit becomes a series circuit
C
when one light bulb goes out, the other goes out too
D
when one light bulb goes out, the other one becomes brighter
2) The point where a parallel circuit branches out is called a
A
branch
B
junction point
C
load circumventor
D
tree
3) In a series circuit
A
current stays the same throughout the circuit
B
current changes as you pass through the circuit
C
voltage stays the same throughout the circuit
D
voltage increases throughout the circuit
4) In a parallel circuit
A
the current entering a junction point is the same as the current leaving a junction point
B
resistance decreases throughout the circuit
C
the voltage decreases throughout the parallel circuit
D
the current entering a junction point is different than the current leaving a junction point
5) Power is measured in
A
Coulombs
B
Watts
C
Joules
D
Amperes
6) Energy is measured in
A
Joules
B
Amperes
C
Coulombs
D
Watts
7) BC Hydro bills you according to your usage, measured in
A
Kilowatt-hours
B
Watts
C
Joules
D
Power
8) Power can be calculated by multiplying
A
Current x Voltage
B
Resistance x Voltage
C
Voltage x time
D
Current x time
9) Power can be calculated by multiplying
A
Joules x Time
B
Watts / Time
C
Watts x Time
D
Joules / Time
10) 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
$0.12
C
$120
D
$1.20
*select an answer for all questions
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