Ontario Grade 9 Science Class Practice Exam

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Master Grade 9 Science with our comprehensive practice exam. Test your knowledge, identify weak areas, and boost your confidence for academic success.

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What describes static electricity?

The flow of electrons in a circuit
A consistent flow of electrical current
A temporary imbalance of charge on an object's surface
The electrical potential energy in an object

The correct answer is: A temporary imbalance of charge on an object's surface

Static electricity refers to a temporary imbalance of charge on an object's surface. This means that there is a build-up of either negative or positive charge on the surface of an object, which can cause the object to attract or repel other objects. Option A, the flow of electrons in a circuit, is incorrect because static electricity does not involve the flow of electrons; it is a stationary charge. Option B, a consistent flow of electrical current, is also incorrect because as mentioned before, static electricity does not involve the flow of electrons. Option D, the electrical potential energy in an object, is incorrect because static electricity refers to the imbalance of charge, not the potential energy. Therefore, the best answer to describe static electricity is option C.