Energy Transformations Quiz

Ramya builds a circuit with a battery, bulb, and switch. Which statement correctly describes how energy moves through this circuit to produce light?

• Light energy flows through the closed circuit to produce electrical energy at the battery.

• Electrical energy flows through the open circuit from the battery to the bulb to produce light.

• Electrical energy flows through the closed circuit from the battery to the bulb to produce light.

• Light energy flows through the open circuit from the switch to the battery to produce electricity.

A system like the one pictured can be used to help keep food warm. How can each energy transformation in the system be labeled?

• heat

• light

• electrical

Ainsley builds a model of an electric circuit that includes a light bulb. Which of these would BEST provide evidence that Ainsley’s circuit is complete?

• The bulb is producing light and heat.

• The bulb is not producing light or heat.

• The bulb is producing light but not heat.

• The bulb is producing heat but not light.

How does a toaster model how electrical energy travels? Write the letter of ONE correct answer on each line. Not all answers will be used. A toaster is made of a series of circuits, which create a ___________ through which the electrical current flows.

• light energy

• open circuit

• heat energy

• magnetic field

• closed path

A toaster transforms electrical energy into ___________ to toast the bread.

• heat energy

• light energy

• open circuit

• closed path

Some energy also becomes ___________, which makes the wires in a toaster glow.

• heat energy

• light energy

• open circuit

• closed path

What is shown in the image?

• A toaster plugged into an electrical outlet

• A blender on a kitchen counter

• A microwave oven

• A refrigerator