WorksheetsElectrical safety
Total questions: 10
Worksheet time: 5mins
For current to flow, there must be a difference in ___ between two locations and path connecting them.
electrical potential
current
resistance
ohms
What is the unit for electrical potential?
volts
ohms
amps
coulombs
A bird perched on one electrical wire will not get shocked because there is no difference in electrical potential between its feet.
true
false
When a bird touches two wires of different voltage, it will get shocked.
true
false
If you place a metal ladder against an electric power line and climb it, you will not get shocked because you are so far from the ground.
true
false
It is a good idea to not plug too many things into one outlet, since there is a risk of overloading the circuit at that outlet.
true
false
It is generally okay to use electrical devices around water if you use a good quality extension cord.
true
false
It is a good idea to not play around green transformer yard boxes or climb the fence around an electrical substation.
true
false
An electrical ground provides a alternative path for current if something goes wrong in a circuit or device.
true
false
Select all the true statements about electrical ground.
The earth is a terrific electrical ground because it has very low electrical potential.
Your home can be grounded to a cold water pipe or a rod driven into the ground outside.
The round hole on a three prong wall plug is the electrical ground.
The sky is the best electrical ground because it is so immense.
