circuit and energy review

Imagine you're an electrician in a cartoon world. Which of these quirky items best completes the circuit and saves the day?

rubber band

metal nail

leather shoelace

wooden toothpick

• rubber band

• metal nail

• leather shoelace

• wooden toothpick

Ready to power up your knowledge? Let's see if you can guess: Which of these substances is the champion of electricity conduction?

• wood

• brick

• copper

• plastic

Imagine you're an electrician superhero! What material would you choose as your trusty insulator to safely cover electrical wires and protect the city?

• rubber

• tin

• aluminum

• water

Guess what happens inside a steam iron? That's right, a magical transformation! But of what kind?

• electrical energy changes to heat energy

• electrical energy changes to sound energy

• mechanical energy changes to heat energy

• mechanical energy changes to light energy

Guess what? Your toaster is a little energy monster! Which form of energy does it gobble up to toast your bread to perfection? Options: chemical, electrical, solar, nuclear.

• chemical

• electrical

• solar

• nuclear

• light energy

• mechanical energy

• thermal energy

• electrical energy

• light energy

• thermal energy

• sound energy

• mechanical energy

• switch 1 only must be closed

• switches 2 and 3 must be closed

• switches 1 and 3 must be closed

• switches 1, 2, and 3 must be closed

Imagine you're an electric wizard! In your magical electric circuit, which enchanted component do you use to masterfully control the flow of electricity?

• Battery

• Switch

• Bulb

• Wire

Ready to test your knowledge on conductors? Which of these materials lets electricity flow through it like a race car zooming on a track?

• Glass

• Plastic

• Silver

• Rubber