Grade 9 Electricity Quiz

Which of the following materials is a good conductor of electricity?

• Rubber

• Copper

• Glass

• Wood

What is the primary characteristic of an insulator?

• It allows electric charges to flow freely.

• It resists the flow of electric charges.

• It generates electric charges.

• It amplifies electric charges.

What happens when two like charges are brought close to each other?

• They attract each other.

• They repel each other.

• They neutralise each other.

• They have no effect on each other.

Which of the following describes the function of an electroscope?

• It measures the current in a circuit.

• It detects the presence of electric charge.

• It generates electric charge.

• It stores electric charge.

What is static electricity?

• The flow of electric charge through a conductor.

• The accumulation of electric charge on an object's surface.

• The conversion of electric energy into light.

• The movement of electric charge in a closed circuit.

Which of the following is a method of charge transfer?

• Conduction

• Radiation

• Reflection

• Refraction

In a diagram of conduction, what is shown?

• The transfer of heat energy.

• The transfer of electric charge through direct contact.

• The transfer of sound waves.

• The transfer of light energy.

What is the principle behind induction?

• Direct contact is necessary for charge transfer.

• Charges are transferred through a medium.

• A charged object can induce a charge in a nearby neutral object without direct contact.

• Charges are transferred through radiation.

Which of the following diagrams would best represent static electricity?

• A diagram showing a closed circuit.

• A diagram showing a charged balloon sticking to a wall.

• A diagram showing a light bulb glowing.

• A diagram showing a battery connected to a motor.

What is the main difference between static electricity and current electricity?

• Static electricity involves the flow of charges, while current electricity does not.

• Static electricity is temporary, while current electricity is permanent.

• Static electricity involves stationary charges, while current electricity involves moving charges.

• Static electricity is visible, while current electricity is not.