A battery converts ________ into electrical energy.
1.Potential energy
2.Chemical energy
3.Nuclear energy
4.Mechanical energy
Posted Date:-2021-07-22 10:58:49
Absolute zero, which is the lower limit of the thermodynamic temperature scale, is equivalent to ________ on the Celsius scale.
1.273 °C
2.0 °C
3.100 °C
4.973 °C
Posted Date:-2021-07-22 10:58:49
Battery was invented by
1.Volta
2.Hero
3.Fermi
4.Maiman
Posted Date:-2021-07-22 10:58:49
Between the melting point and boiling point of a substance, the substance is a?
1.Solid
2.Liquid
3.Gas
4.Crystal
Posted Date:-2021-07-22 10:58:49
Bronze is an alloy of
1.Iron, Carbon
2.Copper, Tin
3.Nickel, Zinc
4.Mercury, Lead
Posted Date:-2021-07-22 10:58:49
Current is the flow of
1.Electrons
2.Protons
3.Neutrons
4.Voltage
Posted Date:-2021-07-22 10:58:49
Electrons were discovered by
1.James Chadwick
2.J.J. Thomson
3.F.W. Aston
4.Rutherford
Posted Date:-2021-07-22 10:58:49
Energy can be converted from one form to another, but all energy ends up as
1.Kinetic energy
2.Potential energy
3.Heat energy
4.Chemical energy
Posted Date:-2021-07-22 10:58:49
he average salinity of the Earths oceans in 1 kilogram of sea water is about ________ grams of salt.
1.90
2.25
3.30
4.35
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he Earths atmosphere is divided into ________ main layers.
1.4
2.5
3.6
4.1
Posted Date:-2021-07-22 10:58:49
Marble and slate are examples of
1.igneous rocks
2.metamorphic rocks
3.sedimentary rocks
4.crystals
Posted Date:-2021-07-22 10:58:49
Mass Spectrograph was invented by
1.Einstein
2.James Chadwick
3.F.W. Aston
4.Rutherford
Posted Date:-2021-07-22 10:58:49
Molecules with identical molecular formulae but with different structural formulae are called
1.Isotopes
2.Isomers
3.Electrode
4.Compound
Posted Date:-2021-07-22 10:58:49
Molten rock above the surface of the Earth is called?
1.Lava
2.Magma
3.Crystals
4.Granite
Posted Date:-2021-07-22 10:58:49
Molten rock below the surface of the Earth is called?
1.Lava
2.Magma
3.Crystals
4.Granite
Posted Date:-2021-07-22 10:58:49
Neutrons were discovered by
1.Einstein
2.James Chadwick
3.F.W. Aston
4.Rutherford
Posted Date:-2021-07-22 10:58:49
Nucleus was discovered by
1.Einstein
2.James Chadwick
3.F.W. Aston
4.Rutherford
Posted Date:-2021-07-22 10:58:49
One way of transfer of heat energy is convection which occurs in
1.Liquids only
2.Gasses only
3.Liquids and gasses
4.Liquids, gasses and solids
Posted Date:-2021-07-22 10:58:49
Rocks which are formed by high temperature and pressure on existing rocks over a period of time are called ________ rocks.
1.igneous
2.metamorphic
3.sedimentary
4.crystal
Posted Date:-2021-07-22 10:58:49
Salty water can be made pure by the method of
1.filtration
2.evaporation
3.chromatography
4.distillation
Posted Date:-2021-07-22 10:58:49
Sandstone and limestone are examples of
1.igneous rocks
2.metamorphic rocks
3.sedimentary rocks
4.crystals
Posted Date:-2021-07-22 10:58:49
The boiling point of alcohol is
1.78 °C
2.86 °C
3.94 °C
4.100 °C
Posted Date:-2021-07-22 10:58:49
The diameter of the Earths equator is larger than the pole-to-pole diameter by
1.40 km
2.43 km
3.46 km
4.49 km
Posted Date:-2021-07-22 10:58:49
The Earths atmosphere is divided into ________ layers.
1.4
2.5
3.6
4.7
Posted Date:-2021-07-22 10:58:49
The entropy of the universe is
1.Increasing
2.Decreasing
3.Constant
4.None of these
Posted Date:-2021-07-22 10:58:49
The fresh water on the Earth is ________ of the total water.
1.2.50%
2.5%
3.7.50%
4.10%
Posted Date:-2021-07-22 10:58:49
The key factor in determining the weather is the quantity of ________ in the atmosphere
1.Water vapour
2.Oxygen
3.Carbon dioxide
4.Hydrogen
Posted Date:-2021-07-22 10:58:49
The mass is highly concentrated form of
1.Weight
2.Energy
3.Force
4.Momentum
Posted Date:-2021-07-22 10:58:49
The metal which is liquid at room temperature is?
1.Zinc
2.Nickel
3.Lead
4.Mercury
Posted Date:-2021-07-22 10:58:49
The most abundant element in the earths crust is oxygen. The second most abundant element in the earths crust is
1.Hydrogen
2.Nitrogen
3.Brass
4.Silicon
Posted Date:-2021-07-22 10:58:49
The most abundant substance that constitutes the mass of the Earth is?
1.Iron
2.Oxygen
3.Nitrogen
4.Silicon
Posted Date:-2021-07-22 10:58:49
The nearest planet to the Sun is
1.Mercury
2.Venus
3.Mars
4.Jupiter
Posted Date:-2021-07-22 10:58:49
The ozone layer is at height of ________ kilometers from the surface of the Earth.
1.10 to 20
2.20 to 30
3.30 to 40
4.40 to 50
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The Ozone Layer lies in the
1.troposphere
2.stratosphere
3.mesosphere
4.thermosphere
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The ozone layer was discovered by
1.F.W. Aston and J.J Thomson
2.Albert Einstein
3.Rutherford
4.Charles Fabry and Henri Buisson
Posted Date:-2021-07-22 10:58:49
The Tectonic Plates of the Earth lies in
1.Inner Core
2.Outer Core
3.Lithosphere
4.Asthenosphere
Posted Date:-2021-07-22 10:58:49
The unit of current is
1.Volt
2.Ampere
3.Ohm
4.Watt
Posted Date:-2021-07-22 10:58:49
The unit of efficiency is
1.Volt
2.Watt
3.Joules
4.None of these
Posted Date:-2021-07-22 10:58:49
The visible cloud of dust and gas in space is called?
1.White Dwarf
2.Supernova
3.Nebula
4.Galaxy
Posted Date:-2021-07-22 10:58:49
The whole Earth can be covered by ________ geo-stationary satellites.
1.3
2.4
3.5
4.6
Posted Date:-2021-07-22 10:58:49
There are ________ major tectonic plates.
1.45
2.5
3.6
4.7
Posted Date:-2021-07-22 10:58:49
To prevent electric shocks, a/an ________ is placed in the circuit.
1.Ammeter
2.Voltmeter
3.Fuse
4.Diode
Posted Date:-2021-07-22 10:58:49
When molten rock cools and solidifies, the ________ are formed.
1.igneous rocks
2.sedimentary rocks
3.metamorphic rocks
4.none of these
Posted Date:-2021-07-22 10:58:49
Which from the following is incompressible?
1.Solids
2.Liquids
3.Gasses
4.All are compressible
Posted Date:-2021-07-22 10:58:49
Which from the following is NOT a non-renewable energy resource?
1.Coal
2.Natural gas
3.Nuclear
4.Geothermal
Posted Date:-2021-07-22 10:58:49
Which from the following is NOT a renewable energy resource?
1.Geothermal
2.Biomass
3.Solar
4.Nuclear
Posted Date:-2021-07-22 10:58:49
Which from the following is NOT a stored energy?
1.Thermal
2.Gravitational
3.Elastic potential energy
4.Chemical
Posted Date:-2021-07-22 10:58:49
Which from the following methods of heat transfer can take place in a vacuum?
1.Conduction
2.Convection
3.Radiation
4.All of the above
Posted Date:-2021-07-22 10:58:49
Which is the process of science?
1.Observation > Experiments > Hypothesis
2.Hypothesis > Observations > Experiments
3.Observation > Hypothesis > Experiments
4.Experiments > Observations > Hypothesis
Posted Date:-2021-07-22 10:58:49
Which type of rock may contain fossils?
1.Igneous
2.Metamorphic
3.Sedimentary
4.Crystals
Posted Date:-2021-07-22 10:58:49