series and parallel circuits

Multiple Select

Which of the following are components of an electric circuit?

• Wires

• Electrons

• Switches

• All of the above

Multiple Choice

What is the main difference between direct current (DC) and alternating current (AC)?

• DC flows in the same direction, AC flows in different directions

• DC flows in different directions, AC flows in the same direction

• DC and AC both flow in the same direction

• DC and AC both flow in different directions

Multiple Choice

Which statement best describes what happens if one component in a series circuit is disconnected?

• All components turn off.

• Only the disconnected component turns off.

• The circuit continues to work normally.

• The voltage increases across the remaining components.

Fill in the Blanks

The total resistance in a series circuit is equal to the sum of the individual

.

Multiple Select

Which of the following are characteristics of resistors in series?

• Same current flows through each resistor.

• Total potential difference is the sum of individual voltages.

• Total resistance is the sum of individual resistances.

• Current splits at each resistor.

Open Ended

Compare and contrast the flow of electricity in series and parallel circuits using the diagrams provided.

Multiple Choice

In a parallel circuit, what happens if one branch is broken?

• Only the components on that branch turn off.

• All components turn off.

• The current stops flowing in all branches.

• The voltage drops to zero across all branches.

Multiple Choice

Which of the following is true about the potential difference across resistors connected in parallel?

• It is different across each resistor.

• It is the same across each resistor.

• It depends on the resistance value.

• It depends on the total current.

Fill in the Blanks

Ohm's Law states that resistance equals

divided by current.

Multiple Choice

Using Ohm's Law, what is the value of volts when the resistance is 9 ohms and the current is 5 amps?

• 45 volts

• 14 volts

• 4.5 volts

• 1.8 volts

Multiple Choice

What is the main difference between conductors and insulators?

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

• Conductors are always metals, while insulators are always plastics.

• Conductors are used for insulation, while insulators are used for conduction.

• Conductors and insulators have the same properties.

Multiple Select

Which of the following materials are insulators?

• Metal

• Water

• Rubber

• Paper

Fill in the Blanks

Resistance is measured in

.

Multiple Choice

How does the thickness of a wire influence its resistance?

• Thicker wires have lower resistance.

• Thicker wires have higher resistance.

• Thickness does not affect resistance.

• Thicker wires have the same resistance as thinner wires.