Get ready for the NCEA Level 1 Energy Test. Utilize flashcards and multiple choice questions with clear explanations and hints. Prepare for success!

Multiple Choice

What energy transformation occurs when a kettle heats water, and what form of energy is mainly produced by the heating element?

Electrical energy from the power supply is transformed into thermal energy inside the kettle. The heating element acts as a resistor, so as current passes through it, energy is released as heat. That heat transfers to the water, increasing its thermal energy until it boils. So the main energy form produced by the heating element is thermal energy. The other options mix up energy forms (chemical, mechanical, nuclear, or electrical as the output) and don’t describe how a kettle actually works.

Electrical energy from the power supply is transformed into thermal energy inside the kettle. The heating element acts as a resistor, so as current passes through it, energy is released as heat. That heat transfers to the water, increasing its thermal energy until it boils. So the main energy form produced by the heating element is thermal energy. The other options mix up energy forms (chemical, mechanical, nuclear, or electrical as the output) and don’t describe how a kettle actually works.