Std : Vth
Slno
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Sub: Science, II nd Semester.
Title
Motion.
Force.
Simple Machines.
Energy.
Electricity.
Solar system.
Food.
Agriculture.
Family & Friends.
Work and play.
Shelter And Clothing.
1
1. MOTION
I)
Choose the most appropriate answer and put a tick  mark
against it.
1)
A book laying on a table is an example of a body at rest.
a)
A body at rest  b) a body in motion c) a body nether at rest nor in motion d)
none of these.
2)
The motion of pendulum is an example of oscillatory motion.
a)
Rotatory motion b) oscillatory motion  c)
curvilinear motion
circular motion.
d)
3)
A car moving on a curved road is an example of curvilinear motion.
a)
Linear motion b) rotator motion c) oscillatory motion d) curvilinear
motion. 
4)
a)
b)
Spinning of a top is an example of Rotatory motion.
Curvilinear motion
c)
Oscillatory motion
d)
II)
Fill in the blanks.
1)
2)
3)
4)
A tree in park is in a state of Rest.
The type of motion observed in a swing is oscillatory motion.
Motion of the earth around the sun is Circular motion.
Motion of the earth in its own axis Rotatory motion.
III)
Match the following.
1)
2)
3)
4)
5)
Linear motion
Curvilinear motion
Rotatory motion
Oscillatory motion
Circular motion
IV)
Answer the following.
1)
Ans:
When the body is said to be at rest?
When the position of body with respect to its surroundings, does not change with time the
body is said to be at rest.
2)
Ans:
When do you say a body is moving?
When body changes its position with respect to time it is said that body is moving.
3)
Ans:
Give an example to show that rest and motion are relative terms?
When the two trains are at rest, when one train will start to move. The person in the other
train feels that he is moving. when he looks at the other side, he seems that he is not moving.
Thus we can say that motion and rest are relative terms.
4)
Ans:
What is translatory motion? Name the two kinds of translatory motion.
Translatory motion is that, in which all the particles of a body move through the same
distance at the same time.
The two kinds of translatory motion are:- 1) Linear motion. 2) Curvilinear motion.
=
=
=
=
=
Rotatory motion
Linear motion
Moving train on the Straight track.
Moving car on curved path.
Spinning top.
Pendulum.
Motion of blades of fan
2
5)
Ans:
How does Rotatory motion differ from circular motion?
In rotatory motion a body moves without changing its position in its own axis.
In circular motion a object moves in a circular path which is at a constant distance from a
fixed point.
6)
Ans:
Eg:
Explain Oscillatory motion with an example?
The repeated to and fro motion of an object from a fixed point is called Oscillatory motion.
A girl on a swing.
7)
Ans:
Explain the curvilinear motion through an activity?
Imagine you are travelling in a bus. It is passing over a curved road and in such a situation it
is said to be curvilinear motion.
2.
FORCE AND WORK.
I)
Choose the most appropriate answer and put a tick mark against it.
1)
a)
b)
A ball thrown upward comes towards the earth. It is because of gravitational force.
Frictional force.
c)
Gravitational force. 
Magnetic force.
d)
Elastic force.
2)
a)
b)
The force that reduce the speed of moving object and finally stops that object is called
Frictional force.
Magnetic force.
c)
Electrostatic force.
d)
Elastic force.
Frictional force. 
II)
Fill in the blanks.
1)
2)
3)
A pull or push acting on an object is called Force.
Gravitational force was discovered by Sir Isaac Newton.
A stretched rubber band is an example of elastic force.
III)
Answer the following.
1)
Ans:
What is the force?
A pull or push acting on an object is called Force.
2)
Ans:
1)
2)
3)
Name the different types of force.
The different types of force are:
Gravitational force.
4)
Electrostatic force.
Frictional force.
5)
Electromotive force.
Magnetic force.
6)
Elastic force.
3)
Ans:
A rolling object stops after sometime why?
A rolling object stops after sometime because of the force of friction.
4)
Ans:
What is magnetic force?
Magnet has the proper of attracting Iron fillings. This force is called Magnetic force.
5)
Ans:
Explain the electrostatic force with an example?
Take a plastic comb and rub on to your hair. Then bring the comb near some pieces of paper.
The pieces are attracted towards the comb this type of force called electrostatic force.
3
7)
Nuclear force.
6)
Ans:
What is work? Give three examples of work done?
Work is said to be done when the on object moves in the direction of the force applied
Eg: 1) Drawing water from well. 2) Throwing a ball.
7)
Ans:
Give an example for electromotive force?
An example of electromotive force is Electric iron box.
3. SIMPLE MACHINES.
I)
Choose the most appropriate answer and put a tick mark against it.
1)
a)
b)
A sloping surface which is used to push or pull heavy object to a certain height is called
Inclined Plane.
c)
Lever.
Inclined plane. 
d)
Pulley.
Wheel and axle.
2)
a)
b)
c)
Wheel of a sewing machine is an example of Wheel and axle.
Screw
d)
Pulley.
Wheel and axle. 
Inclined plane.
II)
Fill in the blanks.
1)
2)
3)
The tools which make our work easy are machine.
An inclined surface wrapped around a cylinder that has sharp pointed end is called Screw.
A lever which is used to cut a nut is called nut cracker.
III)
1)
2)
3)
4)
5)
IV)
Match the following.
Lever - crow bar.
Wheel and axle – steering wheel of car.
Wedge – the head of an axe.
Pulley – Flag pole.
Inclined plane – sloping surface in hospital.
Answer the following.
1)
Ans:
What do mean by simple machines?
When it is difficult to do work by hands we use some tools. These tools are called simple
machines.
2)
Ans:
What is pulley? Give the two example of its use.
A pulley is a simple machine which has a grooved wheel and a rope running over the
grooves of the wheel.
Eg : 1) To draw a pot of water from a well.
2) Pulley helps to hoist a flag.
3)
Ans:
What are the levers give four examples with their function?
A lever is a simple machine used to lift or to move heavy weights, cut things, open a tin.
Eg : 1) A crow bar is used to lift the stone.
2) A pair of scissors used to cut cloth.
3) A knife used to cut a fruit.
4) A spoon is used to open a lid of a tin.
4
4)
Ans:
Why is Inclined plane used to pull or push the heavy object?
Inclined plane is used to push or pull the heavy object to bring the object to a certain height.
4.
ENERGY.
I)
Choose the most appropriate answer and put a tick mark against it.
1)
a)
b)
The energy that we get from sun is called Solar energy.
c)
Wind energy.
Solar energy. 
d)
Water’s stored energy.
Muscular energy.
2)
a)
b)
c)
The kind of energy produced in gobar gas plant is bio energy.
Heat energy.
d)
Electric energy.
Bio energy. 
Chemical energy.
II)
Fill in the Blanks.
1)
2)
3)
4)
The ability to do work is Energy.
The energy which is released by burning of the fuels is Heat energy.
Any object that is moving has Kinetic energy.
The SI unit of energy and work is Joule.
III)
Answer the following.
1)
Ans:
In which instances do you use muscular energy in your day to day life?
When I walk, run, climb, Pull and push the things from one place to another, during this
instance I use muscular energy in day to day life.
2)
Ans:
How is water used to produce electricity?
Water is stored in dams built across the rivers. The stored water is made to run through pipes
from a height the running water hits the turbines with great force, which in turn produces
electricity.
3)
Name three appliances where electricity energy is used?
Ans: Appliances such as washing machine, computer and Microwave are the appliances were
electrical energy is used.
4)
Ans:
How can mechanical energy be converted into the heat energy? Explain with the example
when we beat a metal strip continuously with a hammer it becomes hot. This is how
mechanical energy can be converted into heat energy.
5)
a)
Ans:
Think how energy changes from one from to another form in.
A Solar energy
b)
An electric energy
Solar energy: Here light energy is converted into heat energy.
Electric heater: Here electric energy is converted into heat energy.
6)
Ans:
State the laws of conservation of energy.
Law of conservation of energy:5
Energy can neither be created nor be destroyed it can be only changed from one form to another.
5.
ELECTRICITY.
I)
Choose the most appropriate answer and put a tick mark against it.
1)
a)
b)
In a torch the source of electricity is:
Battery. 
Bulb.
2)
a)
b)
c)
Electric bulb was invented by:
William Gilbert.
James Prescott.
Michael Fardy.
II)
Fill in the blanks.
A combination of two or more cells is called battery.
The longer line in the symbol of a cell indicates the Positive terminal.
1)
2)
III)
c)
d)
Switch.
Spring.
d)
Thomas Alva Edison. 
1)
Ans:
Answer the following.
What is electric current?
The flow of electric charge is called electric current.
2)
Ans:
List out the source of electricity.
Computer, Fan, Bulb, Television etc. are the source of electricity.
3)
Ans:
Why should an electrician use rubber gloves while repairing electric switch at your house?
An electrician use rubber gloves while repairing an electric switch because he may get
electric shock.
4)
Ans:
Mention any three way of conserving electrical energy in your house.
1)
Switch off the Fans and lights when not in use.
2)
Use C.F.L bulbs which are designed to consume less energy.
3)
Switch off electric applications when not in use.
5)
Ans:
What is a cell?
The system consisting of anode and cathode is called a cell.
6)
Ans:
Describe the working of a cell?
Electric cell consist of two electrode kept in a suitable electrolytic solution. One is positive
called anode, where as other is negative called cathode. When these electrodes are connected
by a conducting wire, electrons flow from cathode to anode called electron current. But flow
of current is conventionally indicated from anode to cathode and it is called conventional
electric current.
7)
Ans:
Mention the uses of cell.
Cell is used in Torch, Batteries, Watches, Calculators, Cameras and T.V. Remotes.
6
8)
Ans:
Draw a schematic diagram of a dry cell and label the following part
6.
SOLAR SYSTEM.
I)
Fill in the blanks.
1)
2)
3)
4)
5)
A powerful astronomical telescope was developed by Galileo Galilei .
Phobos and Demos are the two moons of the planet Mars.
The furthest planet from the sun is Neptune.
The only known planet on which life exists is Earth.
The planet known for its rings is Saturn.
II)
Fill in the blanks.
1)
2)
3)
4)
5)
Red planet
The brightest planet
Planet with dark spot
The biggest planet
The planet with thick
Blue –green fog
-
Mars.
Venus.
Neptune.
Jupiter.
-
Uranus.
III)
Answer the following.
1)
Ans:
What is solar system?
The sun and the celestial bodies revolving round the sun is together called the solar system.
2)
Differentiate between geocentric and heliocentric model of the solar system?
7
Ans:
In ancient time, it was thought that the moon, the sun, stars and other planets move around
the earth. This is called geocentric model.
Aryabhata proposed that the earth along with other planets move around the sun. This model
is called as heliocentric model of solar system.
3)
Ans:
Who proposed the geocentric model of solar system?
Ptolemy proposed the geocentric model of solar system.
4)
Ans:
Who proposed the heliocentric model of the solar system?
Aryabhatta proposed the heliocentric model of the solar system.
5)
Ans:
How many planets are there in our solar system?
There are 8 Planets in our solar systems.
6)
Ans:
Name the planets depending on the distance from the sun.
Mercury, Venous, Earth, Mars, Jupiter, Saturn, Uranus and Neptune are the planets
depending upon the distance from the sun.
7)
Ans:
Name the planet nearest to the sun.
Mercury planet is the nearest to the sun.
8)
Ans:
What is the natural satellite?
An object that orbits a planet or other body larger than itself and which is not man-made is
called a Natural satellite of the earth.
9)
Ans:
Explain – Meteors and Asteroids?
Meteors: Meteors are small piece of matter that enter the earth’s atmosphere from outer
space. They make bright streaks of light across the night sky as they burn.
Asteroids: Asteroids are rocky materials having no definite shape. They are from between
the path of mars and Jupiter.
10)
Ans:
What are the comets?
Comets are made of rocks, dust and ice that orbit the sun. They periodically come into the
solar system. When comets come near the sun, due to sun’s heat they start to evaporate
forming long tails of gas and dust that we can see during night.
7.
FOOD.
I)
Choose the most appropriate answer and put a tick mark against it.
1)
a)
b)
Food items that provides energy is:
Bread. 
Spanish.
c)
d)
Tomato.
Egg.
2)
a)
b)
The food item that has carbohydrate is:
Ghee.
Pulses.
c)
d)
Rice. 
Salt.
II)
Fill in the blanks.
1)
Carbohydrates give us energy.
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2)
3)
4)
5)
Lipids are made up of carbon, hydrogen and oxygen in the ratio 4.5:9:1.
The component of the food which helps in healing of wound is Protein.
The food which includes nutrients is called nutritious food.
Fiber found in vegetables and fruits are called Roughage.
III)
Match the following.
1)
2)
3)
4)
5)
Carbohydrate
Lipid
Protein
Vitamins
Roughage
IV)
Answer the following.
1)
Ans:
What do mean by food?
Substances from which an organism derives nutrient and energy for its growth and
development is known as food.
2)
Ans:
Why do we need food?
We need food because food provides nutrients and energy. For the growth and development
of an organism.
3)
Ans:
Mention the two types of nutrients?
The two types of nutrients are macro-nutrients and micro- nutrients.
4)
Ans:
-
Rice.
Butter.
Soyabean.
Orange.
Water.
Name the component of food?
The components of food are Carbohydrate, Protein, Lipids, Vitamins, minerals, Roughages
and Water.
5)
Ans:
What is balance diet?
The food which contains all the nutrients in a required quantity is called Balanced Diet.
6)
Ans:
Name any two food items rice in proteins?
The food item rich in protein are milk, Egg, fish, meat, pulses, Soyabean and green gram.
7)
Ans:
Name any six food items that we get from plants?
The six food items that we get from plants are fruits, vegetables, Pulses, oil, cereals and
ground nuts.
8. AGRICULTURE.
I)
Choose the most appropriate answer and put a tick mark against it.
1)
a)
b)
c)
d)
Cultivation of two or more crops on the same field in the same season is called:
Crop rotation.
Mixed cropping. 
Harvesting.
Ploughing.
2)
a)
Cultivation of two or more crops on the same field in different seasons is called.
Mixed cropping.
b)
Harvesting.
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Crop rotation. 
c)
Sowing.
II)
Match the following.
1)
2)
3)
4)
5)
Ploughing
Harvesting
Monuring
Irrigation
Protection
of crops
III)
Answer the following.
1)
Ans:
What is Agriculture?
Agriculture is a practice of growing plants on a large scale for food or other purpose.
2)
Ans:
1)
2)
3)
How many stages are there in agriculture?
There are six stages in agriculture:There are as follows:
Ploughing of field.
Use of the fertilizers.
Sowing seed.
3)
Ans:
How is crop rotation useful to farmers?
Crop rotation is important to farmers because it keeps the soil fertile.
4)
Ans:
What is seed drill?
Sowing of seed is usually done with the help of an instrument called seed drill.
-
Turning and loosing the soil.
Cutting and gathering the ripened crops.
Increases the fertility of the soil.
Watering the field.
Spraying of pesticides.
4)
5)
6)
Irrigation of fields.
Protection of crops.
Harvesting of crops.
9. FAMILY AND FRIENDS.
I)
Fill in the blanks.
1)
2)
Small families with only parents and children are called Nuclear families.
A joint family is usually a big family.
II)
Answer the following.
1)
Ans:
Define a family?
Family is group of blood related people living together with love.
2)
Ans:
Differentiate between a joint family and a nuclear family?
The different between a joint family and nuclear family are:
Joint family
Nuclear Family
A joint family is a big family with A nuclear family is a small family with
many persons belonging to three or only parents and their children living
four generation living together
together.
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3)
Ans:
1)
What are the benefits of living in a family?
The benefits of the living in a family are:
Family, Being the basic constituent of the community or society, helps its member to lead a
meaningful and successful life.
2)
Family is the basic need of every person as one finds an identity of oneself being a member
of the family.
3)
It ensure natural supports among children, parents and grandparents in different stages of
their life.
4)
It develops feeling of belongingness and security.
4)
Ans:
What is the family tree? Mention its use.
Knowing the names of parents, grandparents, grate grandparents, are recording them in the
form of branches of a tree called Family tree. We will able to know about our family
members.
5)
Ans:
1)
2)
3)
4)
What are the responsibilities of children in the family?
The responsibilities of children in the family are:
Respect the parents’ grandparents or elders in the family.
Go to the school regularly, study well and perform well as students.
Help the parents in house hold work beside their routine work.
Follow the good family tradition, values and culture of the family.
6)
Ans:
What is friendship? Why do we need friends?
Friendship is love and caring for each other we need friends to play with, read and share our
feelings, jokes, stories.etc..
10.
WORK AND PLAY.
I)
Fill in the blanks.
1)
2)
3)
4)
5)
6)
7)
The work done for earning livelihood is called Profession.
A work that involves skills is called a profession.
A person who drives vehicles are called drivers.
Every profession has dignity of labour.
A game in which many players play together is called team game.
We should play team games with groups.
Playing hide and seek is an example of local game.
II)
Choose the one which does not belong to the group and under line it.
1)
2)
Cricket, volley ball, Chess, Hockey.
Lagori, Chess, Basketball, Archery.
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3)
4)
5)
Dice, Chess, Hide and seek, Carom.
Boxing, Kabaddi, Chess, Table tennis.
Running Race, Hurdles, Relay, Long jump.
III)
Match the following.
1)
2)
3)
4)
5)
6)
A post man – distributes the letters.
A farmer – Produce the food crops.
A teacher – gives education in school.
A goldsmith – Makes jewels.
A conductor – issues tickets in bus.
A lawyer - Fights for justice.
IV)
Answer the following.
1)
Ans:
Mention any four types of work done by people for earning livelihood?
Selling vegetables, Doctor looking after patient, teacher teaching and employer working in
bank.
2)
Ans:
What is an occupation? Give two examples.
An occupation is any work done regularly with dedication as a source of income.
Example: Agriculture, fishing.
3)
Ans:
What is profession? When can a work be called perfection?
Profession is any work that involves specific skills. A work can called be a profession if a
person is doing particular work for many years.
4)
Ans:
What is dignity of labour? Why is dignity of labor important?
Dignity of labour is the inherent value of perfection or a profession having its own
importance in a society. Dignity of labour is important because all the works are equal and
we need them in our life any time.
5)
Ans:
What is hobby? Give two examples?
A hobby is a joyful work that is done regularly by a person to get some happiness, relaxation
of mind and satisfaction. Eg: Dancing and collection of stamps and collection of old age
coins and notes.
6)
Ans:
What are the games?
Any type of physical and mental activities performed at home or outside according to some
set rules to enjoy and get good health are called games.
7)
Ans:
Why should we play outdoor games?
We should play outdoor games to keep ourselves physically and mentally fit.
8)
Ans:
What are the individual games? Give two examples.
The games which are played by only one or two players at a time is called individual games.
Eg : Carrom, Chess, Snake and ladder and ludo.
9)
What are the local games or native games? Give two example.
12
Ans:
The games which are played by people in a given region as per their rules is called local or
native games. Eg: Hide and seek and Kabaddi.
11.
SHELTER AND CLOTHING.
I)
Match the following.
1)
2)
3)
4)
5)
Polar regions – Igloos.
Deserts – Tents.
Earth quake porn – Wooden houses region.
Flooded areas – Stilt houses.
Rainy places – slooping roofs.
II)
Answer the following.
1)
Ans:
What is the shelter?
A shelter is a place that protects and provides safety for any living being.
2)
Ans:
1)
2)
What is a home? Mention any four benefits of home to man
A home is a house where family members live together.
A house protects us from cold, heat, rain and thieves.
House provides us shelter.
3)
Ans:
1)
2)
3)
4)
Write any four features of a good house?
The four features of a good house are:
Should be clean and airy.
Should have thick walls for safety and high roofs to interior cool.
The sanitary system in the house should be good.
There should be proper water supply and storage system for continuous availability of good
Water.
4)
Ans:
How are pukka houses better than kuchha house?
Pukka houses are strong made up of bricks, cement and steel and kucha house are not strong,
built by mud, straw which will not stay for a long duration.
5)
Ans:
What is the need of clothing for man?
Clothing is necessary for protection from heat, cold, rain, Etc. and also for living in a civic
society.
6)
Ans:
1)
2)
What are the two types of natural fibre? Give two example
The two types of natural fibre are :
Planet fibre: are natural fibre obtained from plant sources. Eg: cotton.
Animal fibre: are natural fibre, which are obtained from animal source. Eg: Silk.
7)
Ans:
What are synthetic fibers?
Synthetic fibre are man – made, artificially obtained from petroleum products using
chemical processes. Eg: Nylon
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