Electrical Safety
Circuits
Units
Electricity in our Homes
Vocabulary
100
When electricity moves only in one direction
Direct current
100
If Mrs. Wood wanted to make a circuit using items in her classroom, what could she use as a conductor out these items?
a) rubber band
b) pen
c) paperclip
d) glue stick
C) Paperclip
100
An electric charge is measured in ______
Coulomb
100
What do we use to measure electricity in our homes?
kWh - kilowatts/hour
100
What part of a circuit is this object?
Energy source / Cell / Battery
200
The moving of electrical charges.
Current
200
The voltage source can be an outlet (wall socket) or ________
Battery
200
1 C/s is equal to
1 ampere
200
Circuit breakers are connected in series with the outlets and appliances. TRUE or FALSE
TRUE
200
A complete, uninterrupted path that allows electric current to flow from a power source to a load.
Closed Circuit
300
What charges does an electron, proton and neutron have ?
Electron- positive
Proton-negative
Neutron- neutral
300
In this circuit, would the lightbulbs be bright or dim? Why?
Dim. It is a series circuit so the energy is being shared with the three bulbs.
300
if I=Q/t then Q=____
Q=I(t)
300
What does this dial read?
66649
300
What opens and closes a circuit?
Switch
400
Electric charges builds up on the surface of an object
Static electricity
400
Does this diagram represent a series or parallel circuit?
Parallel
400
What do we call current that changes direction ?
Alternating current (AC)
400
What happens to the brightness of the light bulbs in a series circuit when you add more lights.
Each bulb gets dimmer
400
This is where electrical flow can happen easily. A good example would be copper
conductor
500
Continue movement of electron flow in a circuit
Current
500
What kind of circuit is this?
Series
500
What is the unit of measurement for electrical current?
Ampere (A)
500
If an appliance is labeled 100 watts, it means it converts 100 joules of energy per minute. TRUE or FALSE
FALSE
500
Aluminum foil - conductor or insulator ?
Conductor