Which material could fill in the gap for a circuit to create a complete circuit?

• metal spoon

• rubber ball

• plastic spoon

• construction paper

What type of circuit is shown in the picture?

• open

• parallel

• series

• double

Why type of circuit is shown in the picture below?

• megnetic

• open

• parallel

• closed

what happens when one light bulb in a series circuit burns out?

• it breaks the circuit

• nothing happens

• the other bulbs get dimmer

• the other bulbs still work

Which object can be used to light the bulb and sound the buzzer when the switch is closed? Click on the correct object.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Why do bulbs in a series circuit glow less brightly than those in a parallel circuit?

• Because in a series circuit, the voltage is divided among the bulbs

• Because in a series circuit, the resistance is lower

• Because in a parallel circuit, each bulb receives the full voltage of the power source

• Because in a parallel circuit, the current is weaker

Answer explanation

In a series circuit, the voltage is divided among the bulbs, causing them to glow less brightly compared to a parallel circuit where each bulb receives the full voltage.

What is the function of a switch in an electrical circuit?

• To increase the voltage

• To decrease the resistance

• To open or close the circuit

• To convert AC to DC

Answer explanation

A switch in an electrical circuit is used to open or close the circuit, allowing the flow of electricity to be controlled.

A​ (a)   circuit is when a current flows through only one pathway.

• series

• parallel

• open

• closed

A​ ​ (a)   circuit is when a current flows through more than one pathway.

• parallel

• open

• closed

• series

provides the electrical energy for the circuit, the battery

• switch

• load

• power source

• wires