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WorksheetsBasic electronics Quiz!
Total questions: 17
Worksheet time: 17mins
Which side of an LED is the positive?
the short end
The long end
There's no difference
Both are positive.
What kind of circuit is this?
A series circuit
A parallel circuit.
What kind of circuit is this?
A series circuit
A parallel circuit.
What kind of circuit is this?
A series circuit
A parallel circuit.
What kind of circuit is this?
A series circuit
A parallel circuit.
What would happen if you put 3v into an LED?
The LED would light
Nothing would happen
The LED would burn out
The LED would light dimly
What voltage is a AA battery? (Think about what it takes to light an LED)
1v
3v
1.5v
2.5v
What voltage does it take to light 2 LED in a parallel circuit?
3v
6v
4.5v
Greater than 3v
Why do we use tinfoil in DIY battery holders?
Because it's cool
It conducts electricity well
Soldering to a battery is unreliable and unsafe.
Wires won't work if connected directly to a battery
When soldering what should you do first?
Heat the wire you're planning to solder
Melt the solder onto the iron
Coil your wires or probes around eachother at the point to be soldered
Pre-heat the solder so it's melts easier.
What's the difference in a circuit when two batteries placed end to end verses side by side?
Nothing
Tube shaped allows for more voltage.
Side by side allows for more voltage.
It depends what you're trying to power
Where should you put a switch in a parallel circuilt to power off the LEDs?
Between the LEDs
Beside the battery
On the positive end of the battery
Anywhere before the line splits into two to feed the LEDs
Why do we use breadboards in pro-circuits?
It makes it safer
So you don't have to solder as much
It makes for the most secure connection
All proto-cicuits require breadboards
What is a proto-circuit?
A prototype of a circuit
The simple circuit wired to prove you can power a component
A circuit made with a breadboard
A circuit that's not connected to anything
Your circuit doesn't work. Your LED is tested and works. Your battery is tested and works. What's the problem most likley?
The LED is burnt out
The power supply isn't working
The wires aren't connected right.
The breadboard is broken.
What is a key circuit?
A circuit in the shape of a key
A circuit with a battery connected to two LEDs like a key
A circuit that has a button in it.
A circuit that can be activated with a removable conductive bridge.
Why should you have a way to turn off an circuit you've installed?
To stop the components from burning out
So that it works better
It's not really needed.
You'll get better grades.
