Electrical Circuits

CHAPTER 8
GRADE 4
BY YOSHY FAWETA

​Electrical Circuits

Multiple Choice

Which of the following pictures is called cells?

Multiple Choice

It is a component of electric circuit that provides electrical energy .

• cells

• light bulb

• wire

• switch

Multiple Choice

What is a switch's function in a circuit?

• to make the current hotter or colder

• turn on and off the electric current

• the pathway that current flows

• to add more power to the circuit

Multiple Choice

It connects the components of electrical circuit.

• light bulb

• battery

• wire

• switch

One of the components is not connected making the electric current can not flow

​​OPEN CIRCUIT

​All the components are connected that let electric current flow through

​​CLOSED CIRCUIT

Multiple Choice

What type of circuit is shown in the picture?

• open circuit

• closed circuit

Multiple Select

Will the electric current flow in this picture?

• Yes

• No

Multiple Select

Will the electric current flow in this picture?

• Yes

• No

Multiple Select

Will the electric current flow in this picture?

• Yes

• No

Multiple Select

Will the electric current flow in this picture?

• Yes

• No

Multiple Select

Will the electric current flow in this picture?

• Yes

• No

In series circuit, if there are more components (more lamps but the same amount of cells) the lamps will glow dimmer.

​

​BRIGHTNESS OF LAMPS

Multiple Choice

Which circuit will light the lamps brighter?

Multiple Choice

Which circuit will light the lamps brighter?

​ELECTRICAL CONDUCTORS AND INSULATORS

Multiple Choice

Material that can conduct electric current is called ____.

• electrical conductor

• electrical insulator

• magnetic

• non-magnetic

Multiple Select

Which material can connect the gap in the wire?

Choose two correct answer.

Multiple Choice

Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulate electricity

Multiple Select

Why electrical wiring usually are covered with a layer of plastic?

Choose more than one correct answer.

• So we won't get electric shock when touch it

• To help electricity flow along the wire

• To insulate electric current

• To add more energy

​​Symbol of cells

​​Symbol of lamp

​​Symbol of wire

​​Symbol of switch

​ELECTRICAL COMPONENTS SYMBOL

​Electrical circuit symbol with closed switch

​SIMPLE CIRCUITS SYMBOL

​Electrical circuit symbol with an open switch

Multiple Choice

This is the symbol for a ....

• switch
• light 
• battery
• wires

Multiple Choice

This is the symbol for a ....

• Lamp
• Water wheel
• Loudspeaker
• Motor

Fill in the Blanks

Multiple Choice

Which of the following is the correct symbol for this circuit?

Multiple Choice

What type of circuit is shown in the picture?

• open circuit

• closed circuit

• light bulb

• wire