Standard Science Primary 5 Systems

What are the main energy conversions that occur when an electric bell rings?

A Kinetic energy -> Sound energy
B Potential energy -> Electrical energy -> Sound energy
C Electrical energy -> Kinetic energy -> Sound energy
D Electrical energy -> Sound energy
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Worked Solution

Step 1: Electricity flows (Electrical energy). Step 2: The electromagnet moves a hammer (Kinetic energy). Step 3: The hammer hits the gong (Sound energy).

Correct answer: Electrical energy -> Kinetic energy -> Sound energy

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