Electricity (revison_2

What are the main components of a simple circuit?

• Wire, bulb, and cell

• Magnet, wire, and switch

• Battery, magnet, and bulb

What happens when electricity flows through a bulb?

• The bulb explodes

• The bulb lights up

• The bulb makes a sound

Which direction does electric current flow in a simple circuit?

• From the negative end to the positive end of the cell

• From the positive end to the negative end of the cell

• In both directions

What is the filament of a bulb made of?

• Copper

• Tungsten

• Iron

What happens if too much electricity passes through the filament?

• It glows brighter

• It overheats, melts, and the bulb fuses

• It stops conducting electricity

What material is a wire usually made of?

• Tungsten

• Copper

• Plastic

What is a circuit without a gap called?

• Open circuit

• Closed circuit

• Broken circuit

Why are wires covered with rubber or plastic?

• To make them colorful

• To insulate electricity and make it safe

• To increase electricity flow

What is a circuit with a gap called?

• Open circuit

• Closed circuit

• Complete circuit

Which type of circuit allows electricity to flow?

• Open circuit

• Closed circuit

• Broken circuit