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Quiz 18
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Q.1
Which of the following is the second largest source of global energy?
Fossil fuel
Nuclear Energy
Renewable Energy
None of these
Q.2
For every action, there is an equal and opposite reaction, is Newton's
First law
Second law
Third law
Fourth law
Q.3
What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?
50
12
24
36
Q.4
When a number of resistors are connected in series in a circuit, the value of current:
Increases
Becomes half
Decreases
Remains the same
Q.5
Which of these travels in glass with minimum velocity ?
Red light
Violet light
Green light
Yellow light
Q.6
Land is considered a resource because it
Is used to produce things
Requires labor to be useful
Is always available to use
Costs little or nothing to use
Q.7
Solar cells work on the principle of
Photovoltaic effect
Photoelectric effect
Photoconductive effect
Photosynthesis
Q.8
Hot springs are heated geothermally by underlying
Water
Magma
Mitula
None of the above
Q.9
Which of the following is the cleanest source of energy?
Biofuel
Fossil fuel
Nuclear power
Wind energy
Q.10
When light passes from one medium to another, this phenomenon of change in its direction is called ________
Refraction
Diffraction
Propagation
No option is correct
Q.11
Which alternative energy source is exhaustible?
Tidal energy
Wind energy
Solar energy
Geothermal energy
Q.12
Stars appear twinkling because of ......... of light.
Reflection
Scattering
Emission
Absorption
Q.13
Stars in the sky appear to twinkle due to
A series of refractions
A series of reflections
A surface tension phenomenon
Multiple diminishing brightness
Q.14
A piece of wood is held under water. The upthrust on it will be:
Equal to the weight of the wood
Less than weight of the wood
More than weight of the wood
Zero
Q.15
Which of the following is a renewable source of energy
Natural gas
Coal
Wind
Oil
Q.16
The energy that generates wind comes from what source?
Anemometers
Solar radiation
Ocean currents
None of the above
Q.17
A good conductor while carrying current is
Alternately charged positive and negative
Negatively charged
Positively charged
Electrically neutral
Q.18
What is the source of energy for the water cycle?
Rain water
Sun
Clouds
Animals
Q.19
Which of the following is a non renewable source of energy ?
Biogas
Solar
Wind
Coal
Q.20
Wind and solar energy are examples of
Non renewable
Renewable
Unsustainable
Limited
Q.21
The Solar energy produced by
Fusion reaction
Fission reaction
Combustion reaction
None
Q.22
Which of the following is a Non Renewable Resource of Energy?
Wind Power
Hydrogen Fuel
Natural Gas
Solar Energy
Q.23
An egg sinks in soft water but floats in a concentrated solution of salt because
Egg absorbs salt from the solution and expands
Albumin dissolves in salt solution and egg becomes lighter
The density of salt solution exceeds the density of eggs
Water has high surface tension
Q.24
When a ship enters the sea from a river what will be the effect?
It lowers
It sways
It rises a little
It jolts
Q.25
Solar energy is due to
Fusion reactions
Fission reactions
Combustion reactions
Chemical reactions
Q.26
Which resource is both renewable and inexpensive?
Sunlight
Coal
Gold
Minerals
Q.27
Sources of geothermal power are
Water
Earth's heat
Both A & B
None of the above
Q.28
Electrostatic precipitator is used to control the pollution of
Air
Water
Noise
Thermal
Q.29
Hydro-electric power is a:
non-renewable natural resource
A mixture of renewable and non-renewable natural resource
Neither renewable nor non renewable resource
Renewable natural resource
Q.30
The oldest type of energy known to man is
Wind power
Solar power
Tidal energy
Geothermal energy
Q.31
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)
The gold piece will weigh more
The silver piece will weigh more
Both silver and gold pieces weigh equal
Weighing will depend on their masses
Q.32
Which of the following is a renewable resource of energy?
Hydrogen fuel
Wind energy
Solar energy
All of the above
Q.33
The group of solar cells joined together in a definite pattern is called a
Battery
Solar heater
Solar cooker
Solar cell panel
Q.34
Energy that is produced commercially from coal is called
Light energy
Kinetic energy
Thermal energy
Potential energy
Q.35
When a body is immersed in a liquid, the force acting on it is
Upthrust
Weight
Mass
Both (A) and (B)
Q.36
Which of the following uses a Non Renewable Energy Source?
Wind Mill Power Plant
Hydro Electric Plant
Nuclear Power Plant
Tidal Power Plant
Q.37
The shape of our milky way galaxy is
Circular
Elliptical
Spiral
None of the above
Q.38
The density of water is 1 g/cc. This is strictly valid at
0°C
4°C
25°C
100°C
Q.39
Vegetables are cooked in lesser time by adding a pinch of salt while cooking because
Boiling point of water increases
Latent heat of vaporization of water decreases
Latent heat of vaporization of water increases
Boiling point of water decreases
Q.40
Specific gravity is defined as the ratio of
Density of the substance to the density of water
Density of the substance to the density of water at 0°C
Density of water at 4°C to the density of the substance
Density of the substance to the density of water at 4°C
Q.41
The cause for the Tsunami, as deduced by the seismologists, is
Gravitational pull of the moon
Low pressure trough in the ocean
Deformation of sea floor and vertical displacement of water
Sudden change in the monsoon wind
Q.42
Which statement best describes an igneous intrusion?
Igneous intrusion for when ice crystals splash into lava
Magma is injected into surrounding rock forming an igneous intrusive
Magma is exported to an open area and forms iron
Magma explodes to the surface and forms a smooth outer layer of rock
Q.43
Which of the following is not an aerosol?
Mud
Dust
Smoke
Fog
Q.44
What is the process of conversion of solid state directly to gaseous state called?
Evaporation
Condensation
Sublimation
Distillation
Q.45
Solids have definite shapes.This is because
The forces of cohesion of the molecules within are very much less in them
The forces of cohesion are very large
The forces of adhesion are large
The forces of adhesion are less
Q.46
When heated from 0 to 100
o
C volume of a given mass of water will :
Increase gradually
Decrease gradually
Increase and then will decrease
Decrease and then will increase
Q.47
When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of
Surface tension
Capillarity
Viscosity
Diffusion
Q.48
Who measured the velocity of light first ?
Galileo
Newton
Romer
Einstein
Q.49
Light houses are places with powerful lights to :
Guide and resolve traffic jams in crowded metro-cities during nights
Guide and help large crowds at religious gathering during nights
Indicate to the incoming warships, the location of a harbour during night
Guide and warn the ships coming from different directions in the ocean
Q.50
Which is a common first indicator of an approaching thunderstorm?
Too hot
Heavy wind
A buildup of dark clouds
Lightning
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