MCQ Questions for Class 8 Science Chapter 15 : NCERT CBSE RBSE other Board MCQ Questions for Class 8 Science Chapter 15 Some Natural Phenomena with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern.
MCQ Questions for Class 8 Science Chapter 15 Some Natural Phenomena with Answers
Q1. 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
Answer: (a) earthing
Q2. 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
Answer: (b) air beata up and explode
Q3. The power of an earthquake is expressed on a scale called
(a) seismic scale
(b) iron scale
(c) richter scale
(d) large scale
Answer: (c) richter scale
Q4. It is safe to be in ………………… daring a lightning.
(a) open
(b) building
(c) car or bus
(d) both (b) and (c)
Answer: (d) both (b) and (c)
Q5. Which instrument is used to measure earthquake?
(a) Richter scale
(b) Seismograph
(c) Polygraph
(d) None of these
Answer: (b) Seismograph
Q6. Areas falling on joints of seismic pintes are called:
(a) safe zones
(b) fault zones
(c) high zones
(d) none of these
Answer: (d) none of these
Q7. Which is not a natural phenomena?
(a) Earthquakes
(b) Cyclones
(c) Lightning
(d) Earthing
Answer: (d) Earthing
Q8. The power of an earthquake is expressed on scale called:
(a) metre scale
(b) richter scale
(c) centimetre scale
(d) none of these
Answer: (b) richter scale
Q9. How many types of charges are gained by rubbing objects?
(a) 2
(b) 1
(c) 3
(d) 4
Answer: (a) 2
Q10. 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
Answer: (c) one will gain electrons and other will lose electrons
Q11. 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
Answer: (a) On the top of the building
Q12. Which of the following occurs during lightning:
(a) nitrogen fixation
(b) greenhouse effect
(c) acid ram
(d) none of these
Answer: (a) nitrogen fixation
Question 13.
Which of the following occurs during lightning?
(a) Acid rain
(b) Nitrogen fixation
(c) Green house effect
(d) Earthing
Answer: (b) Nitrogen fixation
Question 14.
Which of the following can be charged by rubbing?
(a) Ebonite
(b) Plastic
(c) Amber
(d) All of these
Answer: (d) All of these
Question 15.
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
Answer: (b) equal and unlike charges
Question 16.
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
Answer: (b) Positive
Question 17.
A device used to test whether an object is carrying charge or not is called ______.
(a) Electrometer
(b) Charge meter
(c) Electroscope
(d) Chargoscope
Answer: (c) Electroscope
Question 18.
During lightning actually _____________ takes place
(a) Electric discharge
(b) Electric charging
(c) Electric charge accumulation
(d) All of the above
Answer: (a) Electric discharge
Question 19.
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
Answer: (c) Using a mobile phone
Question 20.
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
Answer: (b) Install lightning conductors
Question 21.
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)
Answer: (d) Bhuj (Gujarat)
Question 22.
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
Answer: (b) Take shelter under short trees
Question 23.
The process of transferring charge from a charged body to earth is called
(a) transferring
(b) Processing
(c) Charging
(d) Earthing
Answer: (d) Earthing
Question 24.
Seismograph is an instrument used to
(a) Record strength of wind
(b) Record vibrations of earthquake
(c) Record lightening
(d) Record temperature
Answer: (b) Record vibrations of earthquake
Question 25.
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
Answer: (c) Richter Scale
Match the following items given in Column ‘A’ with that in Column ‘B’:
| Column A | Column B |
| (i) Richter scale | (a) Sudden shaking of the earth |
| (ii) Waves recorder | (b) Conductor |
| (iii) Earthquake | (c) Earthing |
| (iv) Copper | (d) Earthquake under sea |
| (v) Transfer of charge to the earth | (e) Lightning |
| (vi) Tsunami | (f) Seismograph |
| (vii) Nitrogen fixation | (g) Power of earthquake |
| (viii) Insulator | (h) Plastic |
Answer:
| Column A | Column B |
| (i) Richter scale | (g) Power of earthquake |
| (ii) Waves recorder | (f) Seismograph |
| (iii) Earthquake | (a) Sudden shaking of the earth |
| (iv) Copper | (b) Conductor |
| (v) Transfer of charge to the earth | (c) Earthing |
| (vi) Tsunami | (d) Earthquake under sea |
| (vii) Nitrogen fixation | (e) Lightning |
| (viii) Insulator | (h) Plastic |
