SSC I Sem Science 1 Test

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Value of g is zero at ...............

1 point

Extreme height

Centre of the earth

Polar zone

Equatorial zone

Clear selection

Newton gave the three laws of planetary motion.

1 point

True

False

Clear selection

…………… waves are called the waves on fabric of space-time.

1 point

Light waves

Electromagnetic

Gravitational

Gamma

Clear selection

2 points

Heating effect of electric current

Volt

Ampere

Safety device

Electric current

Electric Fuse

Clear selection

Methods to prevent corrosion are

1 point

Galvanising

Tin plating

Oil paints

All of the above

Clear selection

At dew point, the relative humidity is ...............

1 point

100%

10%

60%

50%

Clear selection

Which of the following is observed only during circular motion?

1 point

uniform acceleration

uniform velocity

Escape velocity

Centripetal Force

Clear selection

In the Mendeleev’s periodic table gaps were left for the elements to be discovered later. Which of the following elements found in the periodic table.

1 point

Germanium

Chlorine

Oxygen

Silicon

Clear selection

The force of gravitation increases as -

1 point

mass of object increases

the distance increases

mass of the object is halved

squaring the distance

Clear selection

Which of the following statements about the modern periodic table is correct.

1 point

It has 18 horizontal rows known as periods

It has 7 vertical columns known as periods

It has 18 vertical columns known as groups

It has 7 horizontal rows known as groups

Clear selection

LIGO stands for -

1 point

Laser Interferometry Gravitational wave observatory

Light Intermissionary Gravity observatory

Laser Intermissionary Gravitational observatory

Light Interference Gravitational waves observatory

Clear selection

The direction of induced current in an AC generator changes once in each ............... .

1 point

two revolutions

one revolution

half rotation

one fourth revolution

Clear selection

Speciﬁc heat is denoted by the letter ‘c’

1 point

True

False

Clear selection

If the distance between the two objects is doubled, the force between them-

1 point

increase by factor 4

doubles

decrease by factor 4

become hay

Clear selection

Value of g varies with altitude

1 point

True

False

Clear selection

The atoms attain a complete octet by …………… .

1 point

giving electrons

taking electrons

sharing electrons

All of the above.

Clear selection

A device which converts electrical energy into mechanical energy is called generator.

1 point

True

False

Clear selection

The S.I. unit of latent heat is ...............

1 point

KJ/Kg

KJ/g

cal/g

cal/kg

Clear selection

As we move across the period the number of electron shell

1 point

Increases

Decreases

Remains same

All of the above

Clear selection

.............. are used in domestic appliances like mixers, washing machines and refrigerators.

1 point

AC motors

DC motors

AC generators

DC generators

Clear selection

While rotating a stone tied to a string; on suddenly leaving the string, what happens to the stone?

1 point

Stone falls freely due to gravity

Stone moves along tangential force

Stone is projected upwards.

Stone continues the circular motion

Clear selection

The magnetic ﬁeld produced by a given current in the wire ............... as the distance from the wire increases.

1 point

increases

decreases

remains the same

doubles.

Clear selection

The temperature at which air becomes saturated with water vapor is called ...............

1 point

dew point

freezing point

melting point

boiling point

Clear selection

True unit of weight is Newton.

1 point

True

False

Clear selection

What is the weight of an object with 10 kg mass?

1 point

10 N

9.8 N

98 N

0.98 N

Clear selection

The magnetic ﬁeld produced due to a current through a circular loop depends directly on ............... .

1 point

radius of the loop

current passing through it.

resistance of the wire

thickness of the wire.

Clear selection

In domestic electric current, different appliances get different potential difference.

1 point

True

False

Clear selection

Chemical equation can be made more informative by …………… .

1 point

By indicating the physical states of reactants and products.

By indicating the heat changes taking places in the equation.

By indicating the condition under which the reaction takes place.

All of the above.

Clear selection

The right hand thumb rule is called Maxwell’s cork-screw rule.

1 point

True

False

Clear selection

The speciﬁc heat of ............... is maximum.

1 point

mercury

silver

water

iron

Clear selection

The device used for converting electrical energy to mechanical energy is ............... .

1 point

galvanometer

generator

motor

voltmeter

Clear selection

Dobereiner's Group Of Three Elements was known as ............... .

1 point

Octaves

Duplets

Triads

None Of The Above

Clear selection

Aquatic plants and animals survive in the cold region because of ...............

1 point

humidity

a dew point

speciﬁc heat capacity

anomalous expansion of water.

Clear selection

If the pressure is applied on ice, its melting point ...............

1 point

increases

decreases

remains the same

ﬂuctuates.

Clear selection

A Tungsten wire is used in an electric bulb.

1 point

True

False

Clear selection

Value of g is more at ..............

1 point

Polar region

equatorial region

about 100 km from surface

a pit 20km deep

Clear selection

As a solid undergoes a phase change to a liquid state, it ...............

1 point

releases the heat while remaining at a constant temperature

absorbs heat while remaining at a constant temperature.

releases heat as the temperature decreases.

absorbs heat as the temperature increases.

Clear selection

In India, the frequency of alternating current is 100Hz.

1 point

True

False

Clear selection

Electromagnetic induction means -

1 point

Charging of an electric conductor.

Production of magnetic ﬁeld due to a current ﬂowing through a coil.

Generation of a current in a coil due to relative motion between the coil and the magnet.

Motion of the coil around the axle in an electric motor.

Clear selection

The dampness or moisture of air due to water vapor it contains is ...............

1 point

dew

humidity

speciﬁc heat

an evaporation

Clear selection

The device used for producing current is called a ............... .

1 point

voltmeter

ammeter

galvanometer

generator

Clear selection

He arranged the elements in increasing order of their atomic masses in a group of three ...............

1 point

Mosely

Mendeleev

Dobereiner

Thompson

Clear selection

At the time of short circuit, the current in the circuit ............... .

1 point

increases

decreases

remains same

All of the above

Clear selection

The direction of the magnetic ﬁeld around a straight conductor carrying current is given by ............... .

1 point

Right hand thumb rule

Fleming’s left hand rule

Fleming's right hand rule

None of these.

Clear selection

All the 118 elements are now discovered.

1 point

True

False

Clear selection

Full Name *

2 points

Germanium

Silicon

Scandium

Gallium

Eka- Boron

Eka- Aluminium

Clear selection

The relation between electricity and magnetism was ﬁrst established by ............... .

1 point

Andre Marie Ampere

Fleming

Michael Faraday

Oersted

Clear selection

High tide and Low tide is result of gravitational force of Sun.

1 point

True

False

Clear selection

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