The Power of Circuits

The video explains how flashlights work by using electricity from batteries to light a bulb. It introduces the concept of circuits, which are paths that electricity follows. The video demonstrates building a simple circuit with a battery, wires, and a bulb, and explains how a switch can control the flow of electricity. It also highlights the presence of circuits in everyday devices like cars and computers.

What is the primary source of electricity in a flashlight?

• The wire

• The light bulb

• The switch

• The battery

What shape is a circuit compared to, and why?

• Triangle, because it has three sides

• Rectangle, because it has two long sides

• Circle, because it has no gaps

• Square, because it has four equal sides

What happens when a switch is turned off in a circuit?

• The light bulb becomes brighter

• The circuit becomes complete

• The electricity flows faster

• A space is created, stopping the flow

In the demonstration, what component is used to mimic the function of a flashlight switch?

• A wire

• A light bulb

• A button

• A battery

Where can circuits similar to the one demonstrated be found?

• Only in household appliances

• In non-electric devices

• In cars, trucks, and buses

• Only in flashlights