Question

correct option
Some Natural
Phenomena
slightly conducting
14
false
(iii)
substance Z?
Statement 1 The tyres af ancat are made
Statement 2 la conductor is connected
to ground the extra charge induced on the
conductor will be neutralized by the ground
The electroscopes one positively charged
and the other negatively changed are
connected with a copper wire as shown in
gure Which of the following will happen?
(A) Electrons will move from X to Y
(B) Protons will move from X to Y
(C) Electrons will move from Y to X
The lower part of a cloud has a negative
charge and is above a tall building. It induces
charge on the building as charged particles
flow through it Which of the following is
CHAPTER
(A) Both statements 1 and 2 are true and
statement 2 is the correct explanation
of statement 1
(6) Both statements 1 and 2 are true
A student has to name the diagrammatio
but statement 2 is not the correct
representation of how an earthquake occurs
explanation of statement 1.
What is the correct sequence starting from
(C) Statement is true but statement 2 is
the ?
(D) Both statements 1 and 2 are false.
if an object made of substance X is rubbed
with an object made of substance Y, then
X becomes positively charged and y
becomes negatively charged. If, however,
an object made of substance X is rubbed
()
(ii)
against an object made of substance Z
(A) Epicentre Focus Seismic
then X becomes negatively charged. What
waves
will happen if an object made of substance
(B) Focus Epicentre Seismic
D) Protons will move from Y tox
y is rubbed against an object made of
waves
(C) Seismic Focus Epicentre
5
(A) Both Y and Z becomes positively
waves
(D) Epicentre Seismic
Focus
charged
waves
(B) Y becomes positively charged and
Z becomes negatively charged.
When we rub glass rod with fur the glass correct?
rod will acquire
(C) Y becomes negatively charged and
Charge on
Z becomes positively charged
(A) Positive charge
the building particles through
(B) Negative charge
(D) Both Y and Z becomes negatively
the building
(C) Either positive or negative charge
charged
(D) Neither positive nor negative charge.
(A) Negative
Positively charged
Which of the following diagrams X and Y
particles move up the
Consider the following statements and
shows charging process by conduction and
elect the correct option which correctly
building
induction ? (Assume stands are insulating.)
entifies true (T) and false (F).
(B) Negative
Negatively charged
charged object may attract something
particles move down
at is neutral
the building
atom that gains electrons becomes
sitively charged
(C) Positive
Negatively charged
e passage of electric current in air due
particles move down
ovement of electric charges in called
the building
tric discharge
Positively charged
X
(D) Positive
(i) (ii) (iii)
Y
(i)(ii) (iii)
particles move up the
T
Conduction
FT (B) F
(A) Induction
T
building
F.
(B) Conduction
Induction
T
(D) T T F
(C) Induction
Induction
(D) Conduction
Conduction
electricity then
(A) Lightning could occur with high intensity
(B) Lightning could occur with lower
intensity
(C) Lightning could not occur at all
(D) None of these
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Which of the following is the best thing to
do during heavy lightning
(A) Lying on the ground in an open place
(B) Going into the nearest water body
(C) Staying indoors away from metallic
doors or windows
(D) Standing under a tall treo
11 Electroscope is used
(A) To detect and test small electric
charges
(B) To calculate the amount of electric
charge flowing through the conductor
in the given interval of time
(C) To find out the presence of positive
charge only
(D) To test the presence of magnetic
field
12. Which of the following scales is/are not
linear in nature?
Decibel (ID) Richter
(i) Meter
(A) (1) only (B) (ID) and (ID
(C) (l) only (D) () and (ID)
13. Which of the following plays an important role
in the early warning systems for cyclones?
(A) Helicopters (B) Submarines
(C) Satellites (D) Stars
14. Which of these things would you do if you
live in the earthquake prone area?
(0) You would always keep an emergency kit
ready.
(in You would have only open book shelves
and open cupboards in your house
(110) You would fix the cupboards to the walls
(iv) You would not keep breakable items on
the upper shelves.
(A) Only (ll) is correct.
(B) Only (l) and (il) are correct.
(C) Only (1). () and (lv) are correct
(D) All are correct.
Movement of charged
8
MOG NSO WORKBOOK
CLASS 8
53
уллох​

Answer 1

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