Electrical Circuits Flashcard

Front

What is the purpose of circuit breakers?

Back

To automatically turn off if energy flow becomes unsafe

Front

Where are the wires that connect electrical outlets usually run?

Back

Through the walls, ceiling, and/or floors

Front

What is the purpose of a ground wire in a building's electrical system?

Back

To provide a safe path for extra electrical energy

Front

What happens to the particles in the filament of an incandescent bulb when electrical energy is transferred to it?

Back

They move around quickly

Front

What is the role of the round hole in the lower middle of an electrical socket?

Back

It connects to the ground wire

Front

What is a common consequence of touching an old-fashioned incandescent bulb when it is on?

Back

It can burn you

Front

What percentage of energy from an old-fashioned bulb is visible as light?

Back

5% to 10%

Front

Why are LED bulbs considered more efficient than incandescent bulbs?

Back

They use less energy to produce the same amount of light.

Front

What is a safety advantage of LED bulbs over incandescent bulbs?

Back

They do not get hot enough to burn you.

Front

What is the primary benefit of using LED bulbs in terms of energy efficiency?

Back

They convert more energy into light.