Basic Electonics

LED is an acronym for?

• Light Entry Diode

• Light Emitting Diode

• Light Editing Dipole

• Light Eliminating Dipole

Which is not an OUTPUT component in a circuit?

• LED

• Buzzer

• Motor

• Switch

Which polarities of this LED are terminals A and B?

• A + , B -

• A - , B +

• A + , B +

• A - , B -

This component (in symbol) will .....

• rotate

• give out light

• sense light

• make noise

This component (in symbol) will ...

• on/off the circuit

• control the flow of electricity

• rotate

• sense light

Which battery symbol is correct?

• A

• B

• C

• D

This is a symbol for ....

• LED

• Motor

• Buzzer

• none of the above

Resistance in the resistor is measured by..

• amperes

• volt

• ohms

• watt

In order for current to flow through the circuit, we ____ the switch.

• open

• close

Resistors have positive and negative terminals.

• False

• True