CBSE Class 8 Science Some Natural Phenomena MCQs

Chapter 15

SOME NATURAL PHENOMENA 

Question. 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

Question. 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: A

Question. During lightning actually _____________ takes place
a) Electric discharge
b) Electric charging
c) Electric charge accumulation
d) All of the above

Answer: A

Question. 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

Question. 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

Question. 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

Question. 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

Question. The process of transferring charge from a charged body to earth is called
a) transferring
b) Processing
c) Charging
d) Earthing

Answer: D

Question. Seismograph is an instrument used to
a) Record strength of wind
b)  Record vibrations of earthquake
c)  Record lightening
d) Record temperature

Answer: B

Question. 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