Match List I with List II and select the correct answer using the code given below: List I | List II A. Amber | 1. Instrument to record earthquake waves B. Electroscope | 2. Resin that attracts hair when rubbed C. Seismograph | 3. Device used to detect electric charge D. Lightning Conductor | 4. Device used to protect buildings from lightning

The correct option is A-2, B-3, C-1, D-4 Explanation This fundamental definitions and historical context of scientific terms and instruments, specifically focusing on electrostatics and geophysics. - A. Amber (Matches with 2): Amber is a fossilized tree resin. Historically, around 600 BC, Thales of Miletus observed that when amber is rubbed with wool, it acquires the property of attracting light objects such as hair or dry leaves. This phenomenon is the basis of triboelectricity (frictional electricity). The word "electricity" is derived from the Greek word elektron, which means amber. - B. Electroscope (Matches with 3): An electroscope is a scientific instrument used to detect the presence of an electric charge on a body. A common example is the gold-leaf electroscope, where the divergence of gold leaves indicates the presence of charge due to electrostatic repulsion. - C. Seismograph (Matches with 1): A seismograph is an instrument used to detect and record the intensity, direction, and duration of ground motion produced by earthquakes (seismic waves). - D. Lightning Conductor (Matches with 4): A lightning conductor is a heavy metal strip or rod installed on the highest point of a building. It is connected to a metal plate buried deep in the ground. It protects the building from lightning strikes by providing a low-resistance path for the electric discharge to flow safely into the earth. Key Takeaway: The historical discovery of static electricity is linked to amber, while the electroscope is the standard device for detecting charge. Lightning conductors apply the principle of grounding to protect structures.

NCERT Class 8 Science — Chapter 3: Some natural phenomena

mcqeasy

Match List I with List II and select the correct answer using the code given below:

List I	List II
A. Amber	1. Instrument to record earthquake waves
B. Electroscope	2. Resin that attracts hair when rubbed
C. Seismograph	3. Device used to detect electric charge
D. Lightning Conductor	4. Device used to protect buildings from lightning

Official previous-year question

Verified 1 Aug 2026.

Options

AA-2, B-4, C-1, D-3
BA-2, B-3, C-1, D-4
CA-3, B-2, C-4, D-1
DA-1, B-3, C-2, D-4

Did you get this right?

Solution

The correct option is

A-2, B-3, C-1, D-4

Explanation

This fundamental definitions and historical context of scientific terms and instruments, specifically focusing on electrostatics and geophysics.

A. Amber (Matches with 2): Amber is a fossilized tree resin. Historically, around 600 BC, Thales of Miletus observed that when amber is rubbed with wool, it acquires the property of attracting light objects such as hair or dry leaves. This phenomenon is the basis of triboelectricity (frictional electricity). The word "electricity" is derived from the Greek word elektron, which means amber.
B. Electroscope (Matches with 3): An electroscope is a scientific instrument used to detect the presence of an electric charge on a body. A common example is the gold-leaf electroscope, where the divergence of gold leaves indicates the presence of charge due to electrostatic repulsion.
C. Seismograph (Matches with 1): A seismograph is an instrument used to detect and record the intensity, direction, and duration of ground motion produced by earthquakes (seismic waves).
D. Lightning Conductor (Matches with 4): A lightning conductor is a heavy metal strip or rod installed on the highest point of a building. It is connected to a metal plate buried deep in the ground. It protects the building from lightning strikes by providing a low-resistance path for the electric discharge to flow safely into the earth.

Key Takeaway: The historical discovery of static electricity is linked to amber, while the electroscope is the standard device for detecting charge. Lightning conductors apply the principle of grounding to protect structures.

Your note

More from Chapter 3: Some natural phenomena

With reference to the history of understanding electrical charges, consider the following statements: 1. The ancient Greeks knew that amber attracts light objects like hair when rubbed with fur. 2. Benjamin Franklin proved that lightning and sparks from clothes are two completely different phenomena. 3. The realization of the similarity between lightning and sparks from clothes took approximately two thousand years to occur. Which of the statements given above is/are correct?

medium

Consider the following statements regarding the charging of objects by rubbing: 1. A plastic refill does not acquire any electric charge when rubbed with polythene. 2. When a plastic comb is rubbed with dry hair, both the comb and the hair get charged. 3. The electrical charges generated by rubbing are static in nature. Which of the statements given above is/are correct?

medium

With reference to the interaction between charged objects, consider the following statements: 1. A charged balloon repels another charged balloon. 2. A charged refill repels a charged balloon. 3. A charged refill attracts another charged refill. Which of the statements given above are correct?

easy

By convention, what is the nature of the electric charge acquired by a glass rod when it is rubbed with silk?

easy

Consider the following statements regarding the nature of electric charges: 1. Charges of the same kind repel each other. 2. Charges of different kinds repel each other. 3. A charged glass rod attracts a charged plastic straw rubbed with polythene. Which of the statements given above is/are correct?

medium

Keep practising Chapter 3: Some natural phenomena

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The correct option is

A-2, B-3, C-1, D-4

Explanation

This fundamental definitions and historical context of scientific terms and instruments, specifically focusing on electrostatics and geophysics.

A. Amber (Matches with 2): Amber is a fossilized tree resin. Historically, around 600 BC, Thales of Miletus observed that when amber is rubbed with wool, it acquires the property of attracting light objects such as hair or dry leaves. This phenomenon is the basis of triboelectricity (frictional electricity). The word "electricity" is derived from the Greek word elektron, which means amber.
B. Electroscope (Matches with 3): An electroscope is a scientific instrument used to detect the presence of an electric charge on a body. A common example is the gold-leaf electroscope, where the divergence of gold leaves indicates the presence of charge due to electrostatic repulsion.
C. Seismograph (Matches with 1): A seismograph is an instrument used to detect and record the intensity, direction, and duration of ground motion produced by earthquakes (seismic waves).
D. Lightning Conductor (Matches with 4): A lightning conductor is a heavy metal strip or rod installed on the highest point of a building. It is connected to a metal plate buried deep in the ground. It protects the building from lightning strikes by providing a low-resistance path for the electric discharge to flow safely into the earth.