Electricity and Magnetism

What energy transformation takes place in a battery powered fan that is spinning?

• Chemical to electrical to kinetic.

• Electrical to thermal to mechanical.

• Kinetic to potential to thermal.

• Chemical to thermal to light.

What is static electricity?

• A type of electric current that flows continuously.

• A stationary electric charge typically produced by friction.

• An electric charge that moves rapidly through a conductor.

• A phenomenon that occurs only in wet conditions.

What is the purpose of a circuit?

• To provide a path for electric current to flow.

• To store electrical energy for later use.

• To convert electrical energy into mechanical energy.

• To increase the voltage of an electrical signal.

What is a magnetic pole?

• The center of a magnet where the magnetic force is weakest.

• The ends of a magnet where the magnetic force is strongest; there are north and south poles.

• A type of magnet that can only attract metal objects.

• A region in space where magnetic forces are absent.

What is magnetism?

• The force exerted by magnets when they attract or repel each other.

• A type of energy that can be harnessed for electricity.

• The ability of materials to conduct heat.

• A phenomenon that occurs only in certain metals.

What is the role of a battery in an electric circuit?

• To provide the electrical energy needed to power the circuit.

• To act as a resistor in the circuit.

• To store electrical energy for later use.

• To convert electrical energy into mechanical energy.

What happens when like poles of a magnet are brought together?

• They attract each other.

• They repel each other.

• They create a magnetic field.

• They become neutral.

What is the difference between conductors and insulators?

• Conductors allow electricity to flow easily, while insulators do not.

• Insulators allow electricity to flow easily, while conductors do not.

• Both conductors and insulators allow electricity to flow easily.

• Conductors and insulators are the same in terms of electricity flow.

Unlike poles of a magnet do what?

• Repel each other.

• Attract.

• Have no effect on each other.

• Create a magnetic field.

What is the region of force around a magnet known as?

• Magnetic field

• Electric field

• Gravitational field

• Nuclear field