Magnetism and Electricity

In the series circuit shown below, what would happen if one of the light bulbs and its attached wire segment were removed?

• The remaining lights would go out.

• The remaining lights would shine with the same brightness.

• The remaining lights would shine less brightly.

• The remaining lights would get brighter.

In the parallel circuit shown below, what would happen if one of the light bulbs and its attached wire segment were removed?

• The remaining lights would go out.

• The remaining lights would shine with the same brightness.

• The remaining lights would shine less brightly.

• The remaining lights would get brighter.

If all four switches below are turned on, which light bulb will light up? (W is wood, S is silver, and Y is yarn.)

• Circuit A

• Circuit B

• Circuit C

• Circuit D

What will happen when a light bulb is added on the left side of this circuit (where the arrow is)?

• The remaining light bulbs will go out.

• The remaining light bulbs will dim.

• The brightness of the remaining light bulbs will not change.

• The remaining light bulbs will brighten.

What is the function of a switch (A)?

• opens and closes the flow of electricity

• transfers the flows of electricity

• controls where the electricity goes

• generates the energy needed for electricity

What is the function of the battery (B)?

• controls where the electricity goes

• opens and closes the flow of electricity

• generates the energy needed for electricity

• transfers the flows of electricity

What is the function of the wires (C)?

• opens and closes the flow of electricity

• transfers the flows of electricity

• controls where the electricity goes

• generates the energy needed for electricity

Which component is activated by the electricity created?

• Battery

• switch

• Light Bulb

• wires

What creates the charge in static electricity?

• Electrons

• Protons

• Heat energy

• magnitism

How is an electromagnet different from a bar magnet?

• Only the bar magnet has a magnetic field.

• Only an electromagnet attracts materials made of iron.

• A bar magnet is temporary and is only magnetic when a current flows through a wire wrapped around the core.

• An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.