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Class 7 Science Chapter 1 Electricity: Circuits and their Components MCQ Practice

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Chapter 1Electricity: Circuits and their Components

120 MCQsFocused chapter practice

DescriptionQuick chapter overview

SyllabusTopics covered clearly

Study Electricity: Circuits and their Components in Class 7 Science with chapter-wise MCQs. Connect scientific ideas with observation, reasoning and practical application while building accuracy and exam confidence.

This chapter explains electric circuits and the components needed for electricity to flow. Students study cells, wires, switches, bulbs, and complete circuits, and learn how electrical systems work through connection, continuity, and practical observation.

Sample Chapter MCQs

Showing 10 sample questions from this chapter.

01 Science

What is the main role of the cell in a circuit?

A To block current

B To supply electrical energy

C To act as a switch

D To act as an insulator only

02 Science

Two cells in series may be needed when:

A more electrical push is required

B less electricity is needed

C no device is connected

D only paper is tested

03 Science

A combination of two or more cells joined together is called:

A bulb

B battery

C wire

D switch

04 Science

An LED glows only when connected with:

A correct polarity

B any random direction

C no cell at all

D only one wire

05 Science

Which option best explains why an LED may fail to glow even in a complete circuit?

A The LED may be connected with reversed polarity.

B LEDs do not need cells.

C LEDs work only with wooden wires.

D LEDs glow only in open circuits.

06 Science

Why does a broken filament stop a bulb from glowing?

A It breaks the conducting path inside the bulb.

B It increases the positive terminal.

C It changes the cell polarity.

D It turns the switch off automatically.

07 Science

The positive and negative ends of a cell are called:

A poles

B sides

C terminals

D wires

08 Science

Why are metals commonly used in electrical connections?

A They are good conductors.

B They are always transparent.

C They are lighter than plastic.

D They never heat up.

09 Science

Which statement is most accurate about a complete circuit?

A It always contains only one wire.

B It provides an unbroken conducting path for current.

C It cannot contain a switch.

D It must always contain an LED.

10 Science

Which of the following is needed to make a bulb glow in a simple circuit?

A Complete path

B Only a switch

C Only a bulb

D Only a cell cover

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