Circuits and Electricity

Which part of the circuit uses or consumes electricity?

• Power source

• Load

• Electrical wire

• Switch

Which of the following refers to the ability of a substance to oppose or slow down electric current?

• Electromagnetism

• Resistance

• Voltage

• Electric current

Which part of the circuit gives electricity?

• Power source

• Load

• Electrical wire

• Switch

What kind of circuit allows other bulbs to work even when other are broken?

• Closed circuit

• Open circuit

• Parallel circuit

• Series circuit

Which part of the circuit regulate electric current?

• Power source

• Load

• Electrical wire

• Switch

Four bulbs are wired in series. How many path/s of current would you observed?

• 4

• 3

• 2

• 1

Why are electrical wires covered with plastic or rubber?

• Plastic and rubber are comfortable materials to touch.

• Plastic and rubber can be made in different colors so people cam tell different leads apart.

• Plastic and rubber are good electrical insulators.

• Smooth materials keep wires from getting tangled.

Some Christmas tree lights are connected in series circuit. Which of the following might happen?

• The light will be brighter

• The bulbs will use more energy.

• If one bulb breaks, the other bulbs will not work.

• The lights will not be more colorful.

You added four bulbs in a set of 8 bulbs in a series circuit. Which of the following might happen?

• The light will be brighter

• The light will be dimmer

• All light bulbs will not work.

• The lights will be more colorful.

What device is used to open or close an electric circuit?

• Fuse

• Switch

• Resistor

• Power source