Basic electronics Quiz!

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.