Question # 1

Breaking of the heavy nucleus of an atom is called:

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Nuclear fission

Nuclear fusion

conservation

pollution

The cause of thermal pollution;

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only green house effect

only nuclear reactors

only fossil fuels

All , A, B and C

Energy possessed bu a body due to its motion is known as:

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Kinetic energy

Heat energy

Electric energy

Chemical

The part of atmosphere where all living bodies reside is................ thick.

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4 to 10 km

6 to 18 km

8 to 20 km

10 to 20 km

Prodcut of forces and distance is called.

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Work

Energy

Power

Heat

Cause of air pollution is.

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Carbon Monoxide

Sulphur di oxide

Nitrogen oxide

All of them

By burning fossil fuels we get.

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Solar power

Tidal power

Nuclear power

Thermal power

Sunlight is directly transformed to electricity with the help of:

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Solar cells

Diod

Rectifier

Transistor

The unit of energy is.

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Newton

Metre

Joule

Second

The energy due to motion is called.

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Potential energy

Kinetic energy

Nuclear energy

Chemical energy

One kilowatt-hour is the amount of energy that is consumed by a ........ applicance in one hour.

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1000 watt

100 watt

10000 watt

500 watt

Production of electricity with help of high tides is called.

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Tidal power

Tharmal power

Wind power

Geothermal power

We can save eenrgy.

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1- By increaisng personal vehicles.

2- By making vehicles of beavier bodies.

3- By not walking

4- By avoiding unnecessary of energy.

Excessive growth in population is also one reason of enhancement in.

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Pollution

Radiations

Conduction

None of them

One Btu is equal to.

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1100 joules

1055 Joules

1050 Joules

1040 Joules

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