Kirchhoff's Rules and Circuits

What breaks and completes a circuit?

• Bulb

• Electric cell

• Wire

• Switch

Which operation results in only the blue bulbs working?

• Open switch 1

• Close switch 1

• Open switch 3

• Open switch 2 and 3

Open the switch. What LEDs turn on?

• LED 5

• LED 2 and 5

• LED 3 only

• LEDS 1, 3 and 4

Which of the following could be used to complete a circuit?

• Cloth

• Cardboard

• Rubber Band

• Penny

Tags

NGSS.MS-PS2-5

Why do parallel circuits provide a more consistent voltage to each component than series circuits?

• Because each component in a parallel circuit has its own direct path to the power source.

• Because parallel circuits have less resistance overall.

• Because the voltage in a series circuit decreases with each additional component.

• Because parallel circuits use more power.

In a series circuit with three bulbs, if one bulb is removed, what happens to the circuit?

• The circuit becomes a parallel circuit.

• The remaining two bulbs shine brighter.

• The circuit becomes an open circuit.

• The remaining two bulbs remain lit, but with reduced brightness.

Describe a series circuit.

• a circuit that has multiple branches

• a circuit that has one path

• a circuit that dead ends after a light bulb

What is a Series Circuit?

• A circuit with more than one path way for current to flow

• A circuit with one path way with one switch.

• An electric circuit with a single path for current to flow.

• Two circuits with one path way for current to flow

Cut wire 6. What happens?

• Two lights turn off

• One light turns off

• All the lights work

• None of the lights work

Cut wire 2. What happens?

• All the lights turn off

• None of the lights turn off

• One light turns off

• Two lights turn off