WorksheetsL.E.D. Signs & Electricity
Total questions: 23
Worksheet time: 12mins
How many volts SHOULD your phone charger/wall adapter/"cube" output?
110/120v
220/240v
5v/9v
12v
What's a Soldering Iron?
Used to weld metal.
Used to heat connections and melt solder.
Used to hot glue electrical connections together.
Used to style hair.
Which of the following IS NOT a "BIG 3" safety rule?
Always wear safety glasses.
Always place iron back in holder.
Always wear heat resistant gloves.
Only touch the red handle.
Approximately how many seconds should you wait to heat up a connection before trying applying solder?
10-20 seconds
1-2 seconds
5-7 seconds
3-5 seconds
What do our signs plug into?
Walls/Outlets
USB Ports
HDMI Ports
Drains
What is the main purpose of the soldering iron?
Dispenses the solder.
Provides the electricity.
Heat!
Burn things.
Why do we need to use solder? Why not glue/tape?
Strong, conductive bonds.
It's more safe.
It's metal.
Flows to heat.
What's the 1st thing you should do when you're ready to safely solder something?
Heat it up.
Add fresh solder/ solder bubble.
Wait 3-5 seconds.
Try to add solder to the cold connection.
Resistors have a positive and negative wire.
FALSE.
TRUE.
What shuld you do when you're done soldering a connection?
Wait 3-5 seconds.
Add another solder bubble.
Clean the soldering iron.
Leave it on the table.
