Grade 4 Electricity

What is another word for BATTERY?

• circuit

• cell

• current

• component

Which circuit is OPEN?

• Both circuits are open.

• The circuit with the switch and light bulb turned ON.

• The circuit with the switch and light bulb turned OFF.

• Both circuits are closed.

Answer explanation

An open circuit means that there is a break or a gap in the circuit and that the current cannot flow through it. A closed circuit means that there is no break or gap in the circuit and that the current can flow through it.

Which electrical resistor/component is responsible for MOVEMENT?

• a motor

• a light bulb

• a wire

• a buzzer

Which electrical resistor/component is responsible for making a single, repeated sound?

• a motor

• a light bulb

• a wire

• a buzzer

Which circuit is CLOSED?

• Both circuits are open.

• The circuit with the switch and light bulb turned ON.

• The circuit with the switch and light bulb turned OFF.

• Both circuits are closed.

Answer explanation

A closed circuit means that there is no break or gap in the circuit and that the current can flow through it. An open circuit means that there is a break or a gap in the circuit and that the current cannot flow through it.

Which electrical resistor/component is responsible for making light?

• a motor

• a light bulb

• a wire

• a buzzer

Which electrical resistor/component does not actually need power,

but instead acts as a connector for all the other resistors/components?

• a motor

• a light bulb

• a wire

• a buzzer

What is this called?

This is an electric socket.

What is another name for it?

What would happen to the light bulb in this circuit if we added another battery?

• The light bulb will glow DIMMER.

• The light bulb will glow BRIGHTER.

• Nothing.

  It will remain the same

• The light bulb will not work anymore.