ELECTRICITY

Look at the picture carefully!

What happen to the torch if we remove one battery of it?

• The bulb will shine brighter.

• The bulb will shine dimmer.

• The bulb will not light up.

• The bulb will burn out.

Which circuit from these option that is working?

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This picture shows a circuit with 2 bulbs and 1 battery. Which one of these statement is CORRECT about the bulbs based on that condition?

• The bulbs will be brighter.

• The bulbs will be dimmer.

• The bulbs will go out.

• The bulbs stay at the same level of brightness.

Which combination would make a simple circuit?

• a buzzer, a cell, and a bulb

• a cell, a wire, a bulb

• a bulb, a switch, a wire

• a switch, a cell, and a buzzer

A cell has a positive and negative terminal. The Electrical current flows from the ________ terminals to the ________ terminal.

• positive - positive

• negative - positive

• negative - negative

• positive - negative

Look at the picture. the component labeled 2 should be ______________ for the light bulb to turn on.

• open

• removed

• closed

• replaced

Which of the following statements is TRUE about the circuit drawn?

• The bulbs in circuit A are brighter than the bulb in circuit B.

• The bulb in circuit B is the brightest.

• The bulb in circuit B is dimmer than the bulb in circuit C.

• The bulb in circuit C is the dimmest.

Casey assembled a circuit consisting of 2 cells, 2 light bulbs, a switch, and wires. Which diagram shows Casey's circuit?

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What material would be safest to use as an insulator to cover electrical wires?

• Plastic

• Silver

• Gold

• Aluminium

Look at the diagram carefully. How do we know that the metal nail is a conductor?

• It changes colors when electricity flows through it.

• It allows electricity to flow through it so the bulb lights up.

• It does not allow electricity to flow through it so the bulb does not light up.

• It's temperature increase when electricity flows through it