Sc 9 Unit 3.4.2 – 3.5.5 Review
Draw a circuit diagram showing one resistor and one
light bulb in series. Include a closed switch.
Name____________________ Block______
Draw a circuit diagram showing one resistor and one
light bulb in parallel. Include an open switch.
For each of the following statements, identify whether it applies to a series circuit or a parallel circuit (S or P).
____1. The current is the same throughout the circuit.
____2. Adding a resistor will decrease the total resistance of the circuit.
____3. The voltage across each resistor in the circuit is the same.
____4. There is only one pathway for electrons to flow.
____5. Adding a resistor will increase the total resistance of the circuit.
____6. There is more than one pathway for current to flow.
____7. As more cells are added to the circuit, the brightness of the light bulb increases.
____8. There are junction points in the circuit.
____9. The sum of voltages across the loads equals the total voltage supplied by the battery.
1. Why do households use parallel circuits instead of series circuits?
2. Convert the units.
a) 500 W = _______ kW
b) 70 kW = _______ W
3. If you used a 5.0 kW clothes dryer for 30 minutes, how many kilowatt-hours (kWh) of electrical energy would you have
used?
4. Give 2 reasons why it would be unwise to wire a home in using a set of series circuits.
5. Two identical light bulbs are connected in a closed circuit. The wiring of the circuit is not visible. Suggest a
way that you can determine if the bulbs are wired in series or in parallel.
Term
Description
___electrical power
a) an energy source that is available on a continuous basis
___kilowatt-hours (kWh)
b) electrical energy a device uses when it is turned off
___EnerGuide
c) an energy source that is non-replaceable in a human lifetime
___smart meter
d) The electrical energy used by an appliance over time
___ENERGY STAR® label
e) the rate at which electrical energy is used by a load
___phantom load
f) identifies a product as meeting or exceeding certain standards for energy
efficiency
___nonrenewable energy
source
g) an electrical energy meter that measures how energy use changes in a
building over the course of the day
___renewable energy
source
h) label a label that gives details about the amount of energy that an appliance
uses in one year of normal use
6. Describe one benefit of smart meters over the old analog meters
7. You and your family have recently moved to a remote island on the B.C. coast.
a.
Identify one nonrenewable energy source your family could use to generate electrical energy. Explain
how it could be used to generate electrical energy.
b.
Identify one renewable energy source your family could use to generate electrical energy. Explain how it
could be used to generate electrical energy.
c.
Explain which of the two sources you would recommend to your family. Justify your response.