Advanced Science Primary 6 Energy

In the circuit shown below, the bulb lights up and the motor turns. Which statement about energy conversion in this circuit is FALSE?

A Chemical potential energy in the batteries is converted to electrical energy.
B Electrical energy is converted to sound energy by the motor.
C The total amount of energy remains the same.
D Electrical energy is converted to light energy by the bulb.
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Worked Solution

Step 1: Batteries provide Chemical Potential Energy. Step 2: Motors primarily convert electrical energy to kinetic energy (movement), with some heat/sound as byproducts. Step 3: While sound might occur, the motor's primary function is kinetic conversion. However, the prompt asks for the FALSE statement in the context of primary energy roles. Step 4: Looking at options, motor output is primarily Kinetic. If the options suggest Sound is the primary conversion, that is the distractor.

Correct answer: Electrical energy is converted to sound energy by the motor.

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