If your toaster is jammed always do this first before fixing it.
What is unplug it?
100
lightning, fireflies, static electricity
What is natural occurring electricity?
100
Where will you find EnerGuide labels?
All new appliances sold in Canada
100
What is an open circuit?
A circuit that does not allow a complete path for the electricity therefore the bulb does not light.
100
When the pointer on an electrical meter is between two numbers always choose the ______ number.
Lower
200
Give two safety rules.
What is:
- don't create an electric octopus
- always unplug electric devices before cleaning or repairing
- never pull a plug out of an outlet by pulling on the wire
- don't run wires under rugs and carpets
- never put your finger in an empty socket
- always replace a damaged electrical cord
- fly kites in open spaces only
- never touch loose, hanging wires
- never use electrical devices near water
- don't climb in trees near power lines
- only electrical plugs go into a wall outlet
200
paper clips, car keys, scissor blades
What are conductors?
200
Give two ways that you can be energy efficient.
Answers Will Vary.
200
What is a closed circuit?
A circuit that does allow a complete path for the electricity therefore the bulb lights.
200
Why are electromagnets called temporary magnets?
They are temporary because once the electricity is turned off the object is no longer a magnet.
300
Why is a short circuit unsafe?
It can cause a fire
300
dvd player, washing machine, vacuum
What is electricity used by humans?
300
Give two reasons why it is important to be energy efficient.
- saves money
- decreases the use of non-renewable resources
- decreases air pollution
300
Give two ways to create an open circuit.
- remove the cell
- remove the bulb
- remove a wire from the cell
- remove a wire from the bulb
300
How are electromagnets used?
They are used to turn refrigerators, street lights, and hot water heaters on and off at the appropriate times.
400
True or False. When there is a lightning storm the safest place to be is under a tree.
False
400
plastic ruler, rubber gloves, wood
What are insulators?
400
What is the purpose of an EnerGuide label?
The purpose is to tell the consumer how much energy, on average, an appliance uses in a month or year
400
Give an example of a resistor in use in our home.
Examples include: dimmer switch, toaster, stove, iron
400
If the pointer of an electrical meter is between 0 & 1, choose _________; if it is between 0 & 9, choose _______
between 0 & 1 choose 0; between 0 & 9 choose 9
500
Why is a battery operated radio better to have in the bathroom than a plugged in one?
A plugged in radio has a continuous flow of electricity and you can be electrocuted whereas a battery operated radio has a finite (or limited) amount of electricity and you will just be shocked.
500
cobalt, steel, nickel
What are materials attracted to magnets?
500
Which is more efficient: an appliance that uses 670 kWh/year or one that uses 60 kWh per month?
The appliance that uses 670 kWh/year
500
How does adding a resistor to a circuit affect the lighting of the bulb? Why?
The bulb dims or does not light at all because the electricity is slowed down.
500
Where is the earth's magnetic field the strongest?