Standard Science Primary 6 Energy

An electric kettle is used to boil water. Which of the following shows the main energy conversion that takes place?

A Electrical energy → Heat energy
B Electrical energy → Kinetic energy → Heat energy
C Chemical potential energy → Heat energy
D Electrical energy → Light energy + Sound energy
Show Worked Solution

Worked Solution

Step 1: The kettle is plugged into an electrical outlet (Electrical energy). Step [2-9]: The heating element converts this energy to heat up the water. Step [2-9]: The useful output is heat energy.

Correct answer: Electrical energy → Heat energy

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