Some Natural Phenomena Class 8 MCQ

Q: What is an earthquake?

An earthquake is a sudden shaking or trembling of the earth which lasts for a very short time.

Q: What is lightning?

Lightning is an electric spark, but on a huge scale.

Q: What is an electroscope?

An electroscope is a device that can be used to test whether an object is carrying a charge or not.

Q: What are the two types of charges?

The two types of charges are positive charges and negative charges.

Q: What is earthing?

The process of transferring charge from a charged object to the earth is called earthing.

Question 1

Question 1: What is lightning?

A. A loud clap of thunder in the skyB. A sudden flash of light in the cloudsC. An electric spark on a massive scaleD. A gentle rain shower

Answer

C. An electric spark on a massive scale. Lightning is essentially a giant electric spark that occurs within a cloud, between clouds, or between a cloud and the ground. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 2

Question 2: In ancient times, what did people believe caused lightning?

A. Loose wires on electric polesB. Plugs that were loose in their socketsC. The wrath of godsD. Scientific experiments

Answer

C. The wrath of gods. Due to a lack of scientific understanding, ancient civilizations often attributed lightning to supernatural causes, such as the anger of deities. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 3

Question 3: Who demonstrated that lightning and the spark from clothes are essentially the same phenomenon?

A. An ancient Greek scholarB. Benjamin FranklinC. A modern-day scientistD. No one knows

Answer

B. Benjamin Franklin. In 1752, Benjamin Franklin, an American scientist, famously conducted his kite experiment, which proved that lightning was a form of electricity. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 4

Question 4: What are electric charges responsible for?

A. The color of objectsB. The weight of objectsC. The taste of foodD. Electrical phenomena like lightning

Answer

D. Electrical phenomena like lightning. Electric charges are fundamental properties of matter that give rise to electrical forces and interactions, including lightning. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 5

Question 5: How does the accumulation of charges in clouds relate to lightning?

A. It has no relation to lightningB. It causes the clouds to rainC. It is the underlying cause of lightningD. It makes the clouds move faster

Answer

C. It is the underlying cause of lightning. The buildup of electrical charges within clouds creates an imbalance, and lightning is the discharge that restores equilibrium. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 6

Question 6: What happens when you rub a balloon against your hair?

A. Nothing happensB. The balloon changes colorC. Your hair stands on endD. The balloon bursts

Answer

C. Your hair stands on end. Rubbing a balloon against your hair causes a transfer of electrons, leading to static electricity and making your hair stand up due to the attraction of opposite charges. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 7

Question 7: Why does your hair stand on end when you take off a woolen sweater in the dark?

A. Because the sweater is warmB. Because of static electricityC. Because the room is darkD. Because the sweater is itchy

Answer

B. Because of static electricity. The friction between your hair and the woolen sweater causes a buildup of static charge, leading to the repulsion of similar charges in your hair. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 8

Question 8: Which of the following is an example of charging by rubbing?

A. Touching a hot stoveB. Rubbing a balloon on your hairC. Kicking a ballD. Eating an apple

Answer

B. Rubbing a balloon on your hair. This action generates static electricity due to the transfer of electrons between the two surfaces. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 9

Question 9: How can you tell if an object is charged?

A. By its colorB. By its weightC. By its sizeD. By its interaction with other objects

Answer

D. By its interaction with other objects. A charged object will attract or repel other charged or lightweight objects. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 10

Question 10: What is the difference between a conductor and an insulator?

A. Conductors are heavy, while insulators are lightB. Conductors allow electricity to flow through them, while insulators do notC. Conductors are always hot, while insulators are always coldD. There is no difference

Answer

B. Conductors allow electricity to flow through them, while insulators do not. This difference in their ability to conduct electricity is due to the arrangement of electrons within their atoms. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 11

Question 11: Which of the following is a conductor?

A. A rubber balloonB. A wooden stickC. A metal rodD. A plastic comb

Answer

C. A metal rod. Metals are excellent conductors of electricity due to the presence of free electrons. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 12

Question 12: Which of the following is an insulator?

A. A copper wireB. An iron nailC. A glass rodD. An aluminum can

Answer

C. A glass rod. Glass is an insulator, meaning it resists the flow of electricity. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 13

Question 13: Why are conductors used in electrical wiring?

A. Because they are cheapB. Because they are strongC. Because they allow electricity to flow easilyD. Because they are colorful

Answer

C. Because they allow electricity to flow easily. Conductors facilitate the efficient transfer of electrical energy. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 14

Question 14: What are the two types of electric charges?

A. Big and smallB. Positive and negativeC. Strong and weakD. Light and heavy

Answer

B. Positive and negative. These two types of charges are fundamental to understanding electrical interactions. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 15

Question 15: What happens when two positive charges are brought close together?

A. They attract each otherB. They repel each otherC. They cancel each other outD. Nothing happens

Answer

B. They repel each other. Like charges repel, while opposite charges attract. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 16

Question 16: What happens when a positive charge and a negative charge are brought close together?

A. They attract each otherB. They repel each otherC. They cancel each other outD. Nothing happens

Answer

A. They attract each other. Opposite charges attract. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 17

Question 17: How can you demonstrate the interaction between charges using balloons?

A. By inflating them to different sizesB. By rubbing them on your hair and observing their behaviorC. By throwing them in the airD. By popping them

Answer

B. By rubbing them on your hair and observing their behavior. Rubbing balloons on your hair charges them, and their subsequent attraction or repulsion demonstrates charge interaction. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 18

Question 18: What does Coulomb’s Law describe?

A. The relationship between force, mass, and accelerationB. The relationship between electric charges and the force between themC. The relationship between energy and workD. The relationship between speed, distance, and time

Answer

B. The relationship between electric charges and the force between them. Coulomb’s Law quantifies the attraction or repulsion between charged objects. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 19

Question 19: According to Coulomb’s Law, what happens to the force between two charges when the distance between them increases?

A. The force increasesB. The force decreasesC. The force remains the sameD. The force becomes zero

Answer

B. The force decreases. The force between charges is inversely proportional to the square of the distance between them. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 20

Question 20: What is an electroscope used for?

A. Measuring temperatureB. Detecting the presence of electric chargeC. Observing distant starsD. Weighing objects

Answer

B. Detecting the presence of electric charge. An electroscope is a simple device that indicates the presence of an electric charge. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 21

Question 21: How does an electroscope work?

A. By using a magnetB. By using a batteryC. By detecting the movement of charged leaves or a needleD. By making a sound

Answer

C. By detecting the movement of charged leaves or a needle. The repulsion of like charges within the electroscope causes the leaves or needle to move, indicating the presence of a charge. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 22

Question 22: What is conduction?

A. The transfer of heat through a materialB. The transfer of charge through a materialC. The transfer of light through a materialD. The transfer of sound through a material

Answer

B. The transfer of charge through a material. Conduction involves the movement of charges, typically electrons, within a conducting substance. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 23

Question 23: What is earthing?

A. The process of planting treesB. The process of connecting a charged object to the groundC. The process of digging a hole in the groundD. The process of flying a kite

Answer

B. The process of connecting a charged object to the ground. Earthing provides a path for excess charge to flow into the earth, neutralizing the object. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 24

Question 24: What role do air currents play in the formation of lightning?

A. They cool the clouds.B. They cause the clouds to move.C. They help in the separation of electric charges within the clouds.D. They have no role in the formation of lightning.

Answer

C. They help in the separation of electric charges within the clouds. Air currents within a thundercloud cause collisions between water droplets and ice particles, leading to charge separation. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 25

Question 25: Where do positive and negative charges accumulate in a thundercloud?

A. Positive charges at the bottom, negative charges at the top.B. Positive charges at the top, negative charges at the bottom.C. Both positive and negative charges in the middle.D. Charges are distributed evenly throughout the cloud.

Answer

B. Positive charges at the top, negative charges at the bottom. This separation of charges creates an electrical potential difference within the cloud. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 26

Question 26: What is an electric discharge?

A. The flow of electricity through a wire.B. The sudden release of accumulated electric charge.C. The process of charging a battery.D. The generation of electricity in a power plant.

Answer

B. The sudden release of accumulated electric charge. Lightning is a massive electric discharge that occurs when the electrical potential difference within a cloud or between the cloud and the ground exceeds a critical threshold. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 27

Question 27: Which type of lightning occurs within the same cloud?

A. Intracloud lightningB. Cloud-to-cloud lightningC. Cloud-to-ground lightningD. All of the above

Answer

A. Intracloud lightning. This is the most common type of lightning, where the electrical discharge happens within a single thundercloud. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 28

Question 28: Which type of lightning occurs between two different clouds?

A. Intracloud lightningB. Cloud-to-cloud lightningC. Cloud-to-ground lightningD. None of the above

Answer

B. Cloud-to-cloud lightning. This type of lightning involves an electrical discharge between two separate thunderclouds. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 29

Question 29: Which of the following is a safe place to be during a thunderstorm?

A. Under a tall treeB. In an open fieldC. Inside a carD. On a rooftop

Answer

C. Inside a car. The metal frame of a car acts as a Faraday cage, diverting the lightning current around the occupants. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 30

Question 30: Why are open fields unsafe during a thunderstorm?

A. Because they are too windy.B. Because they attract lightning.C. Because they offer no protection from lightning strikes.D. Because they are usually far from shelter.

Answer

C. Because they offer no protection from lightning strikes. In an open field, a person may become the tallest object and therefore a potential target for lightning. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 31

Question 31: What should you do during a thunderstorm?

A. Take shelter under a tall tree.B. Go for a swim in a lake.C. Stay indoors away from windows.D. Fly a kite.

Answer

C. Stay indoors away from windows. Staying indoors and away from windows minimizes the risk of being struck by lightning. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 32

Question 32: Why should you avoid using electrical appliances during a thunderstorm?

A. Because they might get damaged.B. Because they might stop working.C. Because they can attract lightning.D. Because they can cause a power outage.

Answer

C. Because they can attract lightning. Electrical appliances can provide a path for lightning to enter a building. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 33

Question 33: What is the purpose of a lightning conductor?

A. To attract lightning and conduct it to the ground.B. To prevent lightning from striking a building.C. To generate electricity from lightning.D. To warn people of an approaching thunderstorm.

Answer

A. To attract lightning and conduct it to the ground. A lightning conductor provides a safe path for lightning to follow, protecting the building from damage. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 34

Question 34: How is a lightning conductor installed?

A. It is buried underground.B. It is placed inside the building.C. It is mounted on a tall pole beside the building.D. It is fixed to the roof of a building, with one end exposed and the other end buried deep in the ground.

Answer

D. It is fixed to the roof of a building, with one end exposed and the other end buried deep in the ground. This allows the lightning conductor to intercept any lightning strikes and safely conduct the charge to the ground, preventing damage to the building. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 35

Question 35: What is an earthquake?

A. A sudden shaking or trembling of the earth.B. A volcanic eruption.C. A strong windstorm.D. A heavy rainfall.

Answer

A. A sudden shaking or trembling of the earth. Earthquakes are caused by the movement of tectonic plates beneath the Earth’s surface. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 36

Question 36: What causes earthquakes?

A. Heavy rainfallB. Volcanic eruptionsC. The movement of Earth’s platesD. Strong winds

Answer

C. The movement of Earth’s plates. When these plates collide or slide past each other, they cause disturbances that result in earthquakes. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 37

Question 37: Are minor earthquakes frequent or infrequent?

A. FrequentB. InfrequentC. They never happenD. Always happen

Answer

A. Frequent. Minor earthquakes occur frequently around the world, often without being noticed. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 38

Question 38: What can be caused by an earthquake?

A. HappinessB. NothingC. CalmnessD. Tsunamis

Answer

D. Tsunamis. Earthquakes beneath the ocean floor can trigger massive waves known as tsunamis. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 39

Question 39: What is a tsunami?

A. A type of rainB. A type of cloudC. A large ocean wave caused by an earthquakeD. A type of wind

Answer

C. A large ocean wave caused by an earthquake. Tsunamis can cause immense destruction along coastlines. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 40

Question 40: When did a major tsunami occur in the Indian Ocean?

A. 2023B. 2004C. 1998D. 2012

Answer

B. 2004. The 2004 Indian Ocean tsunami was one of the deadliest natural disasters in recorded history. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 41

Question 41: What is the Earth’s crust?

A. The core of the earthB. The layer surrounding the Earth’s coreC. The Earth’s outermost layerD. The Earth’s atmosphere

Answer

C. The Earth’s outermost layer. The crust is made up of several large pieces called tectonic plates. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 42

Question 42: What are tectonic plates?

A. Pieces of the Earth’s crustB. VolcanoesC. MountainsD. Rivers

Answer

A. Pieces of the Earth’s crust. These plates are constantly moving, and their interactions cause earthquakes. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 43

Question 43: What is a seismic zone?

A. An area with a high risk of earthquakesB. An area with a lot of volcanoesC. An area with frequent thunderstormsD. An area with heavy rainfall

Answer

A. An area with a high risk of earthquakes. Seismic zones are often located at the boundaries of tectonic plates. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 44

Question 44: Can earthquakes be predicted accurately?

A. YesB. NoC. MaybeD. Always

Answer

B. No. While scientists can identify areas at risk, it’s currently impossible to predict the exact time and location of an earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 45

Question 45: What is the Richter scale?

A. A scale to measure temperatureB. A scale to measure heightC. A scale to measure the intensity of earthquakesD. A scale to measure wind speed

Answer

C. A scale to measure the intensity of earthquakes. The Richter scale quantifies the energy released by an earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 46

Question 46: What does a higher number on the Richter scale indicate?

A. A less severe earthquakeB. A more severe earthquakeC. No differenceD. The earthquake is far away

Answer

B. A more severe earthquake. Each increase of 1 on the Richter scale represents a tenfold increase in the amplitude of seismic waves. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 47

Question 47: What are seismic waves?

A. Waves in the oceanB. Waves in the airC. Waves generated by earthquakesD. Light waves

Answer

C. Waves generated by earthquakes. Seismic waves travel through the Earth and are recorded by seismographs. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 48

Question 48: What instrument is used to record seismic waves?

A. ThermometerB. BarometerC. SeismographD. Telescope

Answer

C. Seismograph. Seismographs detect and record the ground motion caused by seismic waves. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 49

Question 49: How can we protect ourselves during an earthquake?

A. By standing under a tall tree.B. By staying indoors near windows.C. By taking shelter under a sturdy table.D. By going for a swim.

Answer

C. By taking shelter under a sturdy table. This can protect you from falling debris. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 50

Question 50: What type of construction is advisable in earthquake-prone areas?

A. Simple and lightweight structuresB. Tall buildings with heavy materialsC. Houses with large windowsD. Buildings with weak foundations

Answer

A. Simple and lightweight structures. Such structures are more resistant to damage during earthquakes. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 51

Question 51: Which of these is NOT a good practice during an earthquake?

A. Stay calmB. Take cover under a sturdy tableC. Run outside immediatelyD. Stay away from windows

Answer

C. Run outside immediately. It’s safer to stay indoors and take cover during an earthquake, as running outside can expose you to falling debris. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 52

Question 52: Which of these can help reduce earthquake damage to buildings?

A. Heavy roof constructionB. Strong foundationC. Large windowsD. Unstable soil

Answer

B. Strong foundation. A strong foundation helps a building withstand the shaking caused by an earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 53

Question 53: What is the Earth’s mantle?

A. The outermost layer of the EarthB. The layer between the Earth’s crust and coreC. The innermost layer of the EarthD. The layer surrounding the Earth’s atmosphere

Answer

B. The layer between the Earth’s crust and core. The mantle is a thick layer of solid rock. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 54

Question 54: What happens when tectonic plates collide?

A. They create mountainsB. They cause earthquakesC. They can trigger volcanic eruptionsD. All of the above

Answer

D. All of the above. The collision of tectonic plates can lead to mountain formation, earthquakes, and volcanic activity. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 55

Question 55: What is the focus of an earthquake?

A. The point on the Earth’s surface above the origin of the earthquakeB. The point beneath the Earth’s surface where the earthquake startsC. A seismic waveD. A type of fault

Answer

B. The point beneath the Earth’s surface where the earthquake starts. The focus is the underground point where the seismic energy is released. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 56

Question 56: What is the epicenter of an earthquake?

A. The point on the Earth’s surface above the origin of the earthquakeB. The point beneath the Earth’s surface where the earthquake startsC. A seismic waveD. A type of fault

Answer

A. The point on the Earth’s surface above the origin of the earthquake. The epicenter is directly above the focus. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 57

Question 57: What are aftershocks?

A. Smaller earthquakes that follow a larger oneB. The sound waves caused by an earthquakeC. The primary waves generated by an earthquakeD. A type of fault

Answer

A. Smaller earthquakes that follow a larger one. Aftershocks can occur for days, weeks, or even months after a major earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 58

Question 58: Which of these is a type of seismic wave?

A. P-wavesB. S-wavesC. Surface wavesD. All of the above

Answer

D. All of the above. P-waves (primary waves) are the fastest, followed by S-waves (secondary waves), and then surface waves. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 59

Question 59: What is a seismograph?

A. An instrument that measures temperatureB. An instrument that measures air pressureC. An instrument that records seismic wavesD. An instrument that predicts earthquakes

Answer

C. An instrument that records seismic waves. Seismographs produce a visual record of ground motion during an earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 60

Question 60: Which of these is NOT a recommended practice for building earthquake-resistant structures?

A. Use lightweight materialsB. Secure heavy objects to prevent them from fallingC. Build on soft soilD. Design flexible structures

Answer

C. Build on soft soil. Soft soil can amplify the shaking during an earthquake, increasing the risk of damage to buildings. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 61

Question 61: Which of these areas in India is NOT considered a high-risk zone for earthquakes?

A. The HimalayasB. The Deccan PlateauC. The Rann of KutchD. The Indo-Gangetic Plain

Answer

B. The Deccan Plateau. The Deccan Plateau is located in the stable interior of the Indian plate and is less prone to earthquakes compared to the other regions. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 62

Question 62: What is the primary cause of most earthquakes?

A. Volcanic eruptionsB. Meteorite impactsC. Underground nuclear explosionsD. Movement of Earth’s plates

Answer

D. Movement of Earth’s plates. The majority of earthquakes are caused by the movement and interaction of tectonic plates. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 63

Question 63: Which of these statements about the Richter scale is TRUE?

A. It is a linear scale.B. An increase of 1 on the scale represents a tenfold increase in the earthquake’s energy.C. It measures the distance from the epicenter.D. It predicts the occurrence of earthquakes.

Answer

B. An increase of 1 on the scale represents a tenfold increase in the earthquake’s energy. The Richter scale is logarithmic, meaning each whole number increase corresponds to a tenfold increase in wave amplitude and approximately 31.6 times more energy release. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 64

Question 64: What is the purpose of earthing in buildings?

A. To prevent lightning strikesB. To protect from electric shocks due to current leakageC. To strengthen the building’s foundationD. To provide a water supply during an earthquake

Answer

B. To protect from electric shocks due to current leakage. Earthing provides a path for stray electrical currents to flow safely into the ground, reducing the risk of electric shock. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Seek shelter under a tall tree. A tall tree is a likely target for lightning and therefore an unsafe place to be during a thunderstorm. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. To attract lightning and direct it to the ground. A lightning conductor provides a safe path for the lightning’s electrical current to flow into the ground, protecting the building. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. Under a sturdy table. A sturdy table can provide some protection from falling debris during an earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Crouch low to the ground in an open area. Crouching low minimizes your contact with the ground and reduces the risk of being struck by lightning. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

D. All of the above. While not always reliable, these signs can sometimes precede a major earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Take cover under a sturdy table or desk. This will help protect you from falling debris. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. In an open area away from buildings and trees. This minimizes the risk of being hit by falling debris. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Ground-to-ground lightning. Lightning occurs between clouds or between a cloud and the ground, not between two points on the ground. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

A. Air currents and collisions between water droplets and ice particles. These collisions cause charge separation, leading to the buildup of electrical potential within the cloud. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

D. Copper. Copper is an excellent conductor of electricity, which is why it’s widely used in electrical wiring. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Plastic. Plastic is an insulator, meaning it resists the flow of electricity. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. To prevent excessive current from flowing through the circuit. A fuse acts as a safety device that melts and breaks the circuit if the current exceeds a safe level. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

A. Electroscope. An electroscope can detect the presence and type of electric charge. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Earthing. Earthing provides a path for excess charge to flow safely into the ground. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

A. Intracloud lightning. Intracloud lightning, occurring within a single cloud, is more frequent than other types. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

D. Use the elevator to quickly leave the building. Elevators can malfunction during an earthquake and trap people inside. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. They might shatter and cause injuries. The shaking caused by an earthquake can shatter windows, sending dangerous shards of glass flying. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. As far away as possible. The further you are from buildings and trees, the less likely you are to be injured by falling debris. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Away from windows and electrical appliances. This minimizes the risk of being injured by lightning or electrical surges. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

A. Stop the car in a safe location away from buildings and trees. Staying in the car provides some protection from falling debris. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. Your local government or disaster management agency. These agencies provide reliable information and guidance on earthquake safety measures. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. To practice the safest procedures during an earthquake. Regular drills help people react quickly and effectively during a real earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Car accident. Car accidents are caused by human error, not natural forces. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Follow reliable weather forecasts and official alerts. These sources provide accurate and timely information about potential hazards. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

A. To be able to survive for a short period after a natural disaster. A well-stocked kit can provide essential supplies until help arrives. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

D. All of the above. These are essential items for survival in the aftermath of a natural disaster. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. On high ground far inland. Tsunamis can travel far inland, so it’s important to evacuate to higher ground as soon as possible. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Stay calm and tread water until the shaking stops. An earthquake while swimming is unlikely to cause large waves immediately. It’s best to stay calm and wait for the shaking to subside. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. Place heavy objects on high shelves. Heavy objects should be stored on lower shelves to prevent them from falling and causing injuries during an earthquake. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. Underwater earthquakes. The displacement of the ocean floor during an underwater earthquake generates the massive waves that become a tsunami. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Lightning strikes. Lightning strikes are associated with thunderstorms, not earthquakes. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. Use social media or text messaging. Social media and text messaging often work even when phone lines are overloaded or damaged. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

D. Both A and C. A designated meeting place helps ensure everyone’s safety and avoids unnecessary searching during a chaotic situation. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

B. Ignore all warnings and advice from authorities. It’s crucial to pay attention to official warnings and follow evacuation orders during a natural disaster. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

C. Find a sturdy shelter or cover your head with your arms. Hailstones can cause serious injuries, so it’s important to find sturdy shelter or protect your head. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Accepted Answer

D. All of the above. These signs can indicate increased volcanic activity and a potential eruption. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Table of Contents

Lightning

Introduction to Lightning

Electric Charges

Charging by Rubbing

Question 12: Which of the following is an insulator?A. A copper wireB. An iron nailC. A glass rodD. An aluminum canShow ExplanationCorrect Answer: C. A glass rod. Glass is an insulator, meaning it resists the flow of electricity. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Types of Charges and Their Interaction

Transfer of Charge

The Story of Lightning

Lightning Safety

Earthquakes

Introduction to Earthquakes

Question 37: Are minor earthquakes frequent or infrequent?A. FrequentB. InfrequentC. They never happenD. Always happenShow ExplanationCorrect Answer: A. Frequent. Minor earthquakes occur frequently around the world, often without being noticed. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 38: What can be caused by an earthquake?A. HappinessB. NothingC. CalmnessD. TsunamisShow ExplanationCorrect Answer: D. Tsunamis. Earthquakes beneath the ocean floor can trigger massive waves known as tsunamis. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Tsunamis

Question 40: When did a major tsunami occur in the Indian Ocean?A. 2023B. 2004C. 1998D. 2012Show ExplanationCorrect Answer: B. 2004. The 2004 Indian Ocean tsunami was one of the deadliest natural disasters in recorded history. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Causes of Earthquakes

Seismic Zones and Prediction

Richter Scale

Seismic Waves and Seismograph

Protection against Earthquakes

Question 12: Which of the following is an insulator?
A. A copper wireB. An iron nailC. A glass rodD. An aluminum can
Show Explanation
Correct Answer: C. A glass rod. Glass is an insulator, meaning it resists the flow of electricity. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 38: What can be caused by an earthquake?
A. HappinessB. NothingC. CalmnessD. Tsunamis
Show Explanation
Correct Answer: D. Tsunamis. Earthquakes beneath the ocean floor can trigger massive waves known as tsunamis. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)

Question 40: When did a major tsunami occur in the Indian Ocean?
A. 2023B. 2004C. 1998D. 2012
Show Explanation
Correct Answer: B. 2004. The 2004 Indian Ocean tsunami was one of the deadliest natural disasters in recorded history. (Some Natural Phenomena Class 8 MCQ by Top100MCQ.com)