Here we are providing Class 8 Science Objective Chapter – 15 Some Natural Phenomena because its very important for Class 8 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 8 Science Objective Chapter – 15 Some Natural Phenomena is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class Class 8 Science Objective Chapter – 15 Some Natural Phenomena Wastewater Story 100+ questions so that students practice more and more. If you want class wise Notes Then Click Here
Class 8 Science Objective Chapter – 15 Some Natural Phenomena
1.We hear a thunder because:
( A ) a lot of energy is released
( B ) air beata up and explode
( C ) a lot of charge goes in lightning
( D ) clouds bang against each oilier
Ans – ( B )
2. The shaking and trembling of earth is called
( A ) tsunami
( B ) volcano
( C ) earthquake
( D ) none of these
Ans – ( C )
3. What happens when an ebonite rod rubbed with fur and a glass rod rubbed with silk are brought near each other?
( A ) They attract each other.
( B ) They repel each other.
( C ) Nothing happens to them.
( D ) They acquire heat.
Ans – ( A )
4.The process of transfer of charges from a charged object to the earth is called
( A ) earthing
( B ) lightning
( C ) oscillation motion
( D ) electron movement
Ans – ( A )
5. The magnitude of an earthquake is measured in
( A ) Kelvin scale
( B ) Celsius scale
( C ) Decibel scale
( D ) Richter scale
Ans – ( D )
6.It is safe to be in ………………… daring a lightning.
( A ) open
( B ) building
( C ) car or bus
( D ) both ( B ) and (c)
Ans – ( D )
7. Which of the following is not a natural phenomenon?
( A ) Cyclone
( B ) Lightening
( C ) Cooking
( D ) Earthquake
Ans – ( C )
8.The power of an earthquake is expressed on a scale called
( A ) seismic scale
( B ) iron scale
( C ) richter scale
( D ) large scale
Ans – ( C )
9. Which is the sure test of charge on a body?
( A ) Lightning
( B ) Combination
( C ) Repulsion
( D ) Insulation
Ans – ( C )
10. Which layer of the earth is exposed to the atmosphere?
( A ) Outer core
( B ) Mantle
( C ) Inner core
( D ) Crust
Ans – ( D )
11.Areas falling on joints of seismic pintes are called:
( A ) safe zones
( B ) fault zones
( C ) high zones
( D ) none of these
Ans – ( D )
12. The like charges:
( A ) repel each other
( B ) attract each other
( C ) no interaction takes place
( D ) all of these
Ans – ( A )
13. Major earthquakes are less likely to occur in
( A ) North-East India
( B ) Rajasthan
( C ) Rann of Kutch
( D ) Odisha
Ans – ( D )
14.Which instrument is used to measure earthquake?
( A ) Richter scale
( B ) Seismograph
( C ) Polygraph
( D ) None of these
Ans – ( B )
15.The power of an earthquake is expressed on scale called:
( A ) metre scale
( B ) richter scale
( C ) centimetre scale
( D ) none of these
Ans – ( B )
16.Which is not a natural phenomena?
( A ) Earthquakes
( B ) Cyclones
( C ) Lightning
( D ) Earthing
Ans – ( D )
17. The outermost layer of earth is called
( A ) Mountain
( B ) Core
( C ) Crust
( D ) Mantle
Ans – ( C )
18.The two objects rubbed against each other:
( A ) will gain elections
( B ) will lose elections
( C ) one will gain electrons and other will lose electrons
( D ) noise of these
Ans – ( C )
19.How many types of charges are gained by rubbing objects?
( A ) 2
( B ) 1
( C ) 3
( D ) 4
Ans – ( A )
20. The process of transferring a charge from a charged body to the earth is called
( A ) Hydrolysis
( B ) Electrolysis
( C ) Earthing
( D ) Discharging
Ans – ( C )
21.Which of the following occurs during lightning:
( A ) nitrogen fixation
( B ) greenhouse effect
( C ) acid ram
( D ) none of these
Ans – ( A )
22.Where is the lightning rod attached to protect the building from lightning?
( A ) On the top of the building
( B ) On the bottom of the building
( C ) In the middle of the building
( D ) All of these
Ans – ( A )
23. The resin which produces spark is
( A ) gum
( B ) amber
( C ) both ( A ) and (b)
( D ) none of these
Ans – ( B )
24.Lightning always follows:
( A ) a thunder
( B ) rain pour
( C ) wind
( D ) none of these
Ans – ( A )
25.Tsunami means
( A ) earthquake
( B ) floods
( C ) earthquake under the sea
( D ) eruption of volcano in a sea
Ans – ( C )
26.The natural phenomenon which we are not yet able to predict acc.rately Is:
( A ) cyclone
( B ) thunderstorm
( C ) earthquake
( D ) all of these
Ans – ( C )
27.The waves produced on the earth’s surface is called
( A ) seismic wave
( B ) longitudinal wave
( C ) Micro wave
( D ) Radio wave
Ans – ( A )
28.Earthing la the process of Transferring of charge from:
( A ) the earth to a charged object
( B ) charged object to uncharged object
( C ) charged object to the earth
( D ) none of these
Ans – ( C )
29.Amber is a
( A ) metal
( B ) rubber
( C ) resin
( D ) sugar
Ans – ( C )
30. Which instrument is used to measure earthquake?
( A ) Richter scale
( B ) Seismograph
( C ) Polygraph
( D ) None of these
Ans – ( B )
31.The electrical charge can b. transferred front a charged object to another through a:
( A ) non-metal insulator
( B ) metal insulator
( C ) metal conductor
( D ) none of these
Ans – ( C )
32.Which is the surest test of charge on a body?
( A ) Repulsion
( B ) Lightning
( C ) Combustion
( D ) Insulation
Ans – ( A )
33.The denier used to teat whether an object la carrying charge or not is cased:
( A ) electrometer
( B ) chargecope
( C ) electroscope
(4) none of these
Ans – ( C )
34.Which of the following can be charged with static electricity ?
( A ) Metal
( B ) Alloy
( C ) Insulator
( D ) Semiconductor
Ans – ( C )
35.On rubbing ………………… electricity is produced.
( A ) static
( B ) curent
( C ) both ( A ) and (b)
( D ) none of these
Ans – ( A )
36.Which of the following occurs during lightning?
( A ) Acid rain
( B ) Nitrogen fixation
( C ) Green house effect
( D ) Earthing
Ans – ( B )
37.A charged balloon ………………. a charged balloom.
( A ) attract
( B ) repels
( C ) neither attracts nor repels
( D ) none of these
Ans – ( B )
38.Which of the following can be charged by rubbing?
( A ) Ebonite
( B ) Plastic
( C ) Amber
( D ) All of these
Ans – ( D )
39.A charged balloon a charged refill.
( A ) attracts
( B ) repels
( C ) neither attracts nor repels
( D ) none of these
Ans – ( A )
40.When two bodies are rubbed against each other, they acquire
( A ) equal and like charges
( B ) equal and unlike charges
( C ) unequal and like charges
( D ) unequal and unlike charges
Ans – ( B )
41.Is lightning sad the spark from our cloths the same phenomena.
( A ) yes
( B ) no
( C ) can’t say
( D ) none of these
Ans – ( A )
42.It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as __________
( A ) Negative
( B ) Positive
( C ) Neutral
( D ) Can be any one
Ans – ( B )
43.When glass rod is rubbed with silken cloth than glass rod has:
( A ) negative charge
( B ) positive charge
( C ) sometimes negative charge and sometimes positive charge
( D ) no charge
Ans – ( A )
44.A device used to test whether an object is carrying charge or not is called ______.
( A ) Electrometer
( B ) Charge meter
( C ) Electroscope
( D ) Chargoscope
Ans – ( C )
45.When ebonite rod ea rubbed with woollen cloth than ebonite rad has:
( A ) negative charge
( B ) postie charge
( C ) sometimes negative charge and sometimes positive charge
( D ) no charge
Ans – ( A )
46.During lightning actually _____________ takes place
( A ) Electric discharge
( B ) Electric charging
( C ) Electric charge accumulation
( D ) All of the above
Ans – ( A )
47.Same charged bodies:
( A ) attract each other
( B ) repel each other
( C ) fast attracts arid then repels each other
( D ) none of these
Ans – ( A )
48.During a thunderstorm which action may be done?
( A ) Using Telephone having cord
( B ) Switching on / off electric lights
( C ) Using a mobile phone
( D ) None of the above
Ans – ( C )
49.Oppositely charged bodies:
( A ) attract each other
( B ) repel each other
( C ) first attracts and then repel each other
( D ) none of these
Ans – ( A )
50.To protect tall buildings from the damage of lightning, what can be done?
( A ) Not to build tall buildings
( B ) Install lightning conductors
( C ) Install many TV antennas
( D ) Have a roof top garden with tall trees
Ans – ( B )
51.Any object can be charged by which of the following method:
( A ) friction
( B ) contact
( C ) induction
( D ) all of these
Ans – ( A )
52.A major earthquake occurred on 26th January 2001 in which part of India?
( A ) Uri (Kashmir)
( B ) Mumbai (Maharastra)
( C ) Guwahati (Assam)
( D ) Bhuj (Gujarat)
Ans – ( D )
53.When object is rubbed than it is:
( A ) worn out
( B ) charged
( C ) spoiled
( D ) not charged
Ans – ( B )
54.During thunderstorm it is safer to
( A ) Carry an open umbrella
( B ) Take shelter under short trees
( C ) Take shelter under tall trees
( D ) Stand in open fields
Ans – ( B )
55.When two charged bodies are brought near each other than there is:
( A ) attraction
( B ) either attraction repulsion
( C ) repulsion
( D ) neither attraction nor repulsion
Ans – ( B )
56.The process of transferring charge from a charged body to earth is called
( A ) transferring
( B ) Processing
( C ) Charging
( D ) Earthing
Ans – ( D )
57.Which of the following has negative charge:
( A ) woollen cloth
( B ) comb
( C ) paper
( D ) cotton cloth
Ans – ( B )
58.Seismograph is an instrument used to
( A ) Record strength of wind
( B ) Record vibrations of earthquake
( C ) Record lightening
( D ) Cyclones
Ans – ( B )
59. Which is not a natural phenomena?
( A ) Earthquakes
( B ) Cyclones
( C ) Lightning
( D ) Earthing
Ans – ( D )
60.The Instrument that can help as detect charge called:
( A ) electroscope
( B ) electrometer
( C ) barometre
( D ) sohametre
Ans – ( A )
61.The power of an earthquake is expressed in terms of magnitude on a scale called
( A ) Righter Scale
( B ) Quake scale
( C ) Richter Scale
( D ) Earth Scale
Ans – ( C )
62.Which of the following thing when rubbed with dry hair doe* not attract small pieces of paper:
( A ) candle
( B ) steel bowl
( C ) piece of thermocole
( D ) plastic bottle
Ans – ( B )
63. Areas falling on joints of seismic pintes are called:
( A ) safe zones
( B ) fault zones
( C ) high zones
( D ) none of these
Ans – ( D )
64.Lightning occurs due to:
( A ) rain
( B ) electric discharge
( C ) wind
( D ) lord Varun’s angel
Ans – ( B )
65. The shaking of earth is called:
( A ) tsunami
( B ) volcano
( C ) earthquake
( D ) all of these.
Ans – ( C )
66.A lightning dictator:
( A ) conducts electricity
( B ) Mops lightning
( C ) saves building from electric discharge
( D ) all of these
Ans – ( C )
67. Static electricity charges can be produced by
( A ) Heating
( B ) Rubbing
( C ) Beating
( D ) none of these
Ans – ( B )
68.Shaking of earth b called:
( A ) volcano
( B ) tsunami
( C ) earthquake
( D ) bout ( B ) and (c)
Ans – ( C )
69. Why is a lightning conductor installed on a building?
( A ) So that it collects the electric power present in the lightning
( B ) So that it repels the lightning that falls on the building
( C ) So that it forces the lightning to fall in an area where there are no buildings
( D ) So that it conducts electric charge to the ground when lightning strikes the building
Ans – ( D )
70.Which of the following cannot he charged easily by fraction:
( A ) a plastic scale
( B ) a copper rod
( C ) an inflated balloon
( D ) swollen cloth
Ans – ( B )
71. Which of the following allows the transfer of electric charge from one charged object to another?
( A ) Vacuum
( B ) Air
( C ) Insulator
( D ) Conductor
Ans – ( D )
72.When a glass rod is rubbed with a piece of silk cloth the rod:
( A ) and the cloth both acquire positive charge
( B ) becomes positively charged while the cloth has a negative charge
( C ) and the cloth both acquire negative charge
( D ) becomes negatively charged white the cloth has a positive charge
Ans – ( B )
73. Sparks can be seen on an electric pole when wires become
( A ) loose
( B ) tight
( C ) wrinkle
( D ) none
Ans – ( A )
