Ontario Grade 9 Science Class Practice Exam

What role does the load play in an electric circuit?

1. It generates electrical energy

2. It stores electric charge

3. It converts electrical energy into other forms of energy

4. It stops the flow of electric current

The correct answer is: It converts electrical energy into other forms of energy

The load in an electric circuit is the component that converts the electrical energy into other forms of energy, such as heat, light, or motion. This is important because without the load, the circuit would not be able to perform its desired function. Option A is incorrect because it is the power source, such as a battery or power plant, that generates electrical energy. Option B is incorrect because the component that stores electric charge is the capacitor, not the load. Option D is incorrect because it is the function of a resistor to resist the flow of electric current, not the load.