Electrical Systems

Minghui set up a circuit as shown. All five bulbs were lit when all four switches were closed. He wanted four bulbs to be lit by opening only one switch. Which switch should he open?

• A

• B

• C

• D

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What is the purpose of having a battery in the electrical circuit?

• It powers the electricity.

• It is an energy source.

• It contains chemicals.

• It has both the positive and negative terminals

Halimah wants to find out how the arrangement of the batteries in a circuit will affect the brightness of the bulbs. Which variables should be kept constant?

• A only

• C only

• A and C only

• A, B, C and D

Tags

NGSS.MS-PS2-2

Damien set up an electric circuit as shown below. A piece of butter is placed on material Z. The butter started to melt when he turned on the switch. What can material Z be?

• glass

• wood

• plastic

• copper

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Joseph set up the circuit diagram as shown below. He realised one of the bulbs had blown and all the other bulbs did not light up. Which bulb had blown?

• A

• B

• C

• D

What materials would be necessary to complete a simple circuit to turn on a bulb?

• Battery, wire, and bulb

• Battery and bulb

• Wire, bulb, and switch

• Battery, wire, and switch

Tags

NGSS.4-PS3-2

In order for electricity to flow, the circuit needs to be ________________.

• open

• closed

• simple

• parallel

What is the type of circuit shown?

• Short circuit

• Parallel circuit

• Series circuit

• Electrical circuit

The diagrams below show 4 electrical circuits. The battery and bulb used in each circuit are identical and in working condition. In which one of the circuits will the bulb light up?

• Option 1

• Option 2

• Option 3

• Option 4

Tags

NGSS.MS-PS3-5

The circuit diagram shows 3 light bulb in series. What happens when one of the light bulb blows.

• The remaining bulbs remain on.

• The remaining bulbs are off.

• The remaining bulbs becomes brighter.

• The remaining bulbs becomes dimmer.