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Science term 1 quiz

Total questions: 239

Worksheet time: 2hrs 10mins

Name
Class
Date
1.

IDENTIFY THE AGRICULTURAL TOOL

a)

SPADE

b)

KHURPI

c)

PLOUGH

d)

SICKLE

2.

IDENTIFY THE PLOUGH FROM THE FOLLOWING FIGURES

a)
b)
c)
d)
3.

NAME THE CROP

a)

WHEAT

b)

MAIZE

c)

BARLEY

d)

NONE OF THESE

4.

WHICH OF THE FOLLOWING CROP GROWS IN WINTER?

a)

PEA

b)

PADDY

c)

MAIZE

d)

SOYABEAN

5.

WHICH OF THE FOLLOWING IS NEITHER KHARIF CROP NOR RABI CROP?

a)

PADDY

b)

WHEAT

c)

MAIZE

d)

WATERMELON

6.

THIS INSTRUMENT IS USED FOR

a)

HARVESTING

b)

CUTTING

c)

IRRIGATION

d)

TILLING

7.

WHICH AGRICULTURAL PRACTICE HELPS IN TURNING AND LOOSENING OF SOIL?

a)

SELECTION AND SHOWING OF SEEDS

b)

IRRIGATION

c)

WEEDING AND CROP ROTATION

d)

SOIL PREPARATION

8.

OUT OF FERTILIZER AND MANURE WHICH ONE IS EASILY ABSORBED BY THE ROOTS ?

a)

FERTILIZER

b)

MANURE

c)

BOTH MANURE AND FERTILIZER

d)

NONE OF THESE

9.

SPECIFY THE PICTURE WHICH HELPS IN SOWING OF SEEDS

a)
b)
c)
d)
10.

WHEN YOU WILL PUT SEEDS IN WATER ,WHAT IS TRUE ABOUT DAMAGED SEEDS?

a)

THEY WILL SINK

b)

THEY WILL FLOAT

c)

THEY ARE HEAVIER

d)

ALL OF THESE

11.

WHICH OF THE FOLLOWING IS NOT A FERTILIZER?

a)

UREA

b)

NPK

c)

POTASH

d)

RHIZOBIUM

12.

WHILE SOWING OF SEEDS PROPER DISTANCE MUST BE MAINTAINED BETWEEN EVERY SEED .WHY?

a)

TO PREVENT FROM OVERCROWDING

b)

TO PREVENT FROM COMPETITION FOR NUTRIENTS,WATER, SHELTER, SUNLIGHT ETC.

c)

TO PROTECT FROM DISEASE

d)

TO PROTECT FROM WEEDS

13.
Can manure be used as fertilizer?
a)
No
b)
Yes
14.
Harvesting is a process of
a)
separating grains from stalk
b)
preparing soil for sowing seeds
c)
collecting ripened crops from the field
d)
removing undesired plants from the crop field
15.
Threshing is a process of
a)
Separating grains from the stalk
b)
 preparing soil for sowing seeds
c)
collecting crops from the field
d)
removing undesired plants from the crop field
16.
In order to obtain a higher yield, farmers must undertake various agricultural practices. Which is the first step in this process?
a)
Addition of manure
b)
Preparation of soil
c)
Harvesting
d)
Irrigation 
17.
A seed drill helps in  _____i____ and _____ii______ . The information in which alternative completes the given statement?
a)
sowing seeds at a uniform distance, harvesting the produce
b)
sowing seeds at a uniform distance, saving time
c)
saving time, spreading manure
d)
harvesting the produce, spreading manure
18.

WHICH OF THE FOLLOWING CROP GROWS IN WINTER?

answer choices

a)

PEA

b)

PADDY

c)

MAIZE

d)

SOYABEAN

19.

Weeds can be defined as

a)

Useful plants present in the field

b)

Undesirable plants present in the field

c)

Plants that cannot be used at all

d)

Undesirable insects present in the field.

20.

The plant roots contain nitrogen fixing bacteria _________________.

a)

Orange

b)

Pea

c)

Mango

d)

Tomato

21.

____is a modern tool driven by tractor for ploughing.

a)

Cultivator

b)

Seed drill

c)

Plough

d)

None of these

22.

The chemicals used for weeding are called ____.

a)

Weedecides

b)

Weedicides

c)

Weidicides

d)

None of these

23.

Which of the following has correct spelling.

a)

Chain phump

b)

Chain punp

c)

Chain pump

d)

All of these

24.

Which of these is correct full form of N.S.C.

a)

National Seed Company

b)

National Seed Community

c)

All of these

d)

None of these

25.

Damaged seeds are lighter thatswhy sink in water.

a)

True

b)

False

26.

Preparation of soil contain 3 steps.

a)

True

b)

False

27.

The quality of plant depend on SEED.

a)

True

b)

False

28.

Groundnuts and pea both are example of kharif crop.

a)

True

b)

False

29.

Cutting of crops when they are mature is called (a)   .

30.

The first step before growing crops is (a)   of the soil.

31.

Seed drill is usedfor (a)   with the help of tractor.

32.

Substances which are added to the soil in the form of nutrients for the growth of the plants are called (a)   .

33.

Bacteria is known as__________________ in an ecosystem when feeding on dead organisms.

a)

Decomposers

b)

Herbivore

c)

Pathogens

d)

Infections

34.

Fungi is beneficial to us beacause of the following reason

a)

They are a source of oxygen

b)

They can clean up pollution

c)

They are a source of antibiotics

d)

They help to clean run off from waste

35.

Influenza is a disease caused due to

a)

bacteria

b)

Virus

c)

Protozoa

d)

None of the above

36.

A Bacteria responsible for curdling of milk is

a)

Rhizobium

b)

Oscillatoria

c)

Lactobacillus

d)

Plasmodium

37.

The Fermentation process is discovered by

a)

Louis Pasture

b)

Alexander flaming

c)

Edward jenner

d)

John Mendal

38.

Mushroom belongs to

a)

Algae

b)

Virus

c)

Fungi

d)

None of the above

39.

Rhizobium bacteria

a)

Help in Digestion

b)

Help in nitrogen fixation

c)

Cause diseases

d)

All the above

40.

Penicillium is a

a)

Algae

b)

Fungus

c)

Bacteria

d)

Yeast

41.

Malaria is caused bby

a)

Protozoa

b)

Virus

c)

Algae

d)

Bacteria

42.

Amoeba belongs to

a)

Algae

b)

Fungi

c)

Virus

d)

Protozoa

43.
A tiny, nonliving particle that invades and then reproduces inside a living cell.
a)
Bacteria
b)
Virus
c)
Protist
d)
Fungi
44.
A preparation of weakened or killed pathogens.
a)
Bacteria
b)
Antibiotic Resistance
c)
Vaccine
d)
Capsid
45.
Antibiotics can be used to treat a viral infection.
a)
True
b)
False
46.

Bacteria is known as__________________ in an ecosystem when feeding on dead organisms.

a)

Decomposers

b)

Herbivore

c)

Pathogens

d)

Infections

47.

Fungi is beneficial to us beacause of the following reason

a)

They are a source of oxygen

b)

They can clean up pollution

c)

They are a source of antibiotics

d)

They help to clean run off from waste

48.

A Bacteria responsible for curdling of milk is

a)

Rhizobium

b)

Oscillatoria

c)

Lactobacillus

d)

Plasmodium

49.

Rhizobium bacteria

a)

Help in Digestion

b)

Help in nitrogen fixation

c)

Cause diseases

d)

All the above

50.

Penicillium is a

a)

Algae

b)

Fungus

c)

Bacteria

d)

Yeast

51.
This microorganism has whip-like flagella, that help them move.
a)
Virus
b)
Bacteria
c)
Algae
d)
Fungi
52.
Some bacteria is known as ________________ and cause disease.
a)
pathogens
b)
flagella
c)
influenza
d)
ebola
53.
Are microorganisms helpful or harmful?
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
54.
Yogurt contains harmful bacteria.
a)
True
b)
False
55.
Some fungus can provide food.
a)
True
b)
False
56.
Microorganisms can be found:
a)
The the ocean, inside and outside your body
b)
On plants and animals
c)
In medicine and your food
d)
All of the above
57.
_________________ bacteria are in your _________________ to help digest food.
a)
Helpful; throat
b)
Helpful; stomach
c)
Harmful; esophagus
d)
Harmful; lungs
58.

Many small unit combine together to form a large unit called (a)  

59.

Many small unit combine together to form a large unit called (a)  

60.

Name the plastic used for making water pipes

a)

PVC

b)

Iron

c)

Steel

d)

PCV

61.

Select 2 polyester fibers

a)

Polythene

b)

Melamine

c)

PET

d)

Terylene

62.

Name the plastic used for non - stick coating

(a)  

63.

Which is the first fully made Synthetic fibre?

a)

Rayon

b)

Nylod

c)

Nylon

d)

Acrylic

64.

Poly + Cot = _____

a)

Polcot

b)

Pollycot

c)

polycot

d)

polycotton

65.

Identify the product based on the given features.

I. It is a man-made product.

II. It has a linear arrangement of monomer units.

III. It is used for making goods like toys, combs, containers, etc.

a)

Thermplastics

b)

Thermoplastics

c)

Thermoseting plastics

d)

Thermosetting plastics

66.

A parachute is made of ------------

a)

Nylen

b)

Nylon

c)

Polyester

d)

Bakelite

67.

What material is commonly used to make umbrella 's?

a)

Nylon

b)

Terylene

c)

Malamine

d)

Polyester

68.

(a)   synthetic fibres contain large number of ester groups.

69.

Which of the following statements are false?

a)

Cellulose is a polymer that is made up of a large number of small glucose molecules joined one after the other.

b)

Wood contains a very less amount of cellulose polymer.

c)

The small molecules that join together to form a polymer are called monomers

70.

Which of the following is not a property of nylon?

a)

Nylon fibers are fairly strong and elastic

b)

Nylon is a Synthetic fibre

c)

It is cheaper than natural silk and can be woven like silk fiber.

d)

Nylon fibers are lightweight and lustrous.

71.

Which of the following is a fire-resistant plastic and is used to coat the uniforms of firemen?

a)

PVC

b)

Teflon

c)

Melamine

d)

Bakelite

72.

The plastics which do not remould again on heating are called:

a)

None of these

b)

Thermosetting plastics

c)

Both of these

d)

Thermoplastics

73.

Chemical treatment of wood pulp

(a)  

74.

Nylon was prepared from ____________

a)

Coal and Oil

b)

Coal and Mixture of whatever and oil

c)

Coal and Water

d)

Coal, Water and Air

75.

PET full form

a)

polyethylene terephthalate

b)

polythylene terephthalate

c)

polyethylene terephhalate

d)

polyethylene terehthalate

76.

Synthetic fibres are synthesised from raw material called (a)  

77.

The full form of PVC is _____.

a)

Polyvenyl Chloride

b)

Polyvinil Chloride

78.

Rayon is the different from synthetic fiber because

a)

it has a silk like appearance

b)

it is obtained from wood pulp

c)

its fibers can also be woven like those of natural fibers

d)

All the above

79.

The small unit of polymer is called....

a)

Nylon

b)

Terylene

c)

Monomer

d)

Naphthalene

80.

The first rayon factory in India is in......

a)

Andhra Pradesh

b)

Kerala

c)

Karnataka

d)

Maharastra

81.

Rayon mixed with cotton to make ... ...

a)

bed sheets

b)

carpets

c)

diapers

d)

door mats

82.

Which is a natural fiber among the following?

a)

Rayon

b)

Nylon

c)

Acrylic

d)

Silk

83.

........ is called fake fur.

a)

Nylon

b)

Rayon

c)

Acrylic

d)

Terylene

84.

.... ... fiber is as strong as steel

a)

Nylon

b)

Rayon

c)

Acrylic

d)

Terylene

85.

...... is not a natural fiber.

a)

cotton

b)

silk

c)

wool

d)

nylon

86.

...... is a synthetic fiber, prepared from coal, water and air.

a)

nylon

b)

rayon

c)

acrylic

d)

polyster

87.

All the winter wear now-a-days is made of a synthetic fiber called.......

a)

nylon

b)

rayon

c)

acrylic

d)

polyester

88.
Which of the following option is incorrect statement about rayon?
a)
It is highly absorbent and soft
b)
it is obtained from wood pulp
c)
it is mixed with cotton to make bedsheets
d)
it is a natural fibre
89.
Jute is
a)
a man made fibre
b)
an animal fibre
c)
it melts on heating
d)
it is a plant fibre
90.

Who looked at cork and named what he saw cells?

a)

Anton van Leeuwenhoek

b)

Robert Hooke

c)

Rudolph Virchow

d)

Matthias Schleiden

91.
The organelle that is the control center of the cell.
a)
nucleus
b)
cell membrane
c)
ER
d)
ribosomes
92.
The organelle that allows things in and out of the cell.  Also protects the cell.
a)
nucleus
b)
cell membrane
c)
ER
d)
ribosomes
93.
The jelly-like fluid that supports the organelles in place. 
a)
nucleus
b)
cell membrane
c)
chloroplast
d)
cytoplasm
94.

This organelle stores water and other materials. It is larger in plant cells.

a)

vacuole

b)

cell wall

c)

chloroplast

d)

cytoplasm

95.
Which organelle collects sunlight to make sugar during photosynthesis?
a)
Chloroplast
b)
Cell Wall
c)
Cell Membrane
d)
Vacuole
96.
Which organelle is found in both plant and animal cells but is larger in plant cells?
a)
Chloroplast
b)
Cell Wall
c)
Cell Membrane
d)
Vacuole
97.
Which organelle is found in both plant and animal cells and converts sugars into energy?  (the powerhouse of the cell)
a)
Mitochondria
b)
Cell Wall
c)
Cell Membrane
d)
Vacuole
98.

Which two organelles are NOT found in animal cells?

a)

Cell membrane

b)

Cell wall

c)

Cytoplasm

d)

Nucleus

e)

Chloroplast

99.

What is the function of a cell wall?

a)

to protect and support the cell

b)

to perform different functions in each cell

c)

to prevent water from passing through it

d)

to prevent oxygen from entering the cell

100.

Cells were first observed by Robert Hooke in cork in the year (a)   .

101.

The cytoplasm and nucleus make up the (a)   .

102.

The shape and the size of the cell is related to its (a)   .

103.

Tisssues make up an (a)   .

104.

Organ systems make up an (a)   .

105.

The other name of cell membrane is

a)

plasma membrane

b)

cell wall

c)

nuclear membrane

d)

none of these

106.

Cell wall is found in

a)

plant cells only

b)

animal cells only

c)

both

d)

none of them

107.

Nucleus is separated from cytoplasm by

a)

nucleoplasm

b)

cell membrane

c)

nuclear membrane

d)

plasma membrane

108.

The power house of a cell is

a)

Golgi bodies

b)

Chloroplast

c)

Mitochondria

d)

Nucleus

109.

If your father has brown eyes, you may also have brown eyes. If your mother has curly hair, you might also end up having curly hair. This transfer of characteristics is due to the transfer of ______.

a)

Mitochondria

b)

Lysosomes

c)

Chloroplast

d)

Chromosomes

110.

Which of the following combinations are present in plant cell but not in animal cell

a)

Cell Wall & Plastid

b)

Cell wall and Cell membrane

c)

Plastid and Nucleus

d)

Cell Membrane and Cytoplasm

111.

The liquid substance present between nucleus and plasma membrane is called

a)

Cytoplasm

b)

Nucleoplasm

c)

Protoplasm

d)

None of these

112.

Choose the correct statement

a)

Genes are located on the chromosomes

b)

The cell is located in the nucleus

c)

Chromosomes are found in the cytoplasm

d)

Cell membrane surrounds the nucleus

113.

Which of the following statements is true for eukaryotic cells?

a)

They do not have a nuclear membrane.

b)

They have a well organised nucleus.

c)

Bacteria is a eukaryotic cell

d)

none

114.

Cheek cells do not have

a)

Cell membrane

b)

Nucleus

c)

Golgi bodies

d)

Plastids

115.

Complete the sentence. Friction always ____________

a)

helps the motion

b)

opposes the motion

c)

both of these

d)

none of these

116.

Which one of these characteristics does a smooth surface has?

a)

Less frictional force

b)

More frictional force

c)

Sometimes less and sometimes more force

d)

All of above

117.

Friction is a __________

a)

Contact force

b)

Non-contact force

c)

Magnetic force

d)

None of these

118.

What kind of substances are known as lubricants

a)

Increase friction

b)

Decrease friction

c)

Increase or decrease friction

d)

None of these

119.

Fluid are____

a)

Gases

b)

Liquids

c)

Gases and liquids both

d)

None of these

120.

On what force of friction depends?

a)

Smoothness of surface

b)

Roughness of surface

c)

Inclination of surface

d)

All of above

121.

Friction is a /an_______

a)

Evil

b)

Friend

c)

Both (a) and (b)

d)

None

122.

Lubricants ________

a)

Increase friction

b)

Reduce friction

c)

Both (a) and (b)

d)

None

123.

Rolling friction is smaller than?

a)

Sliding friction

b)

Static friction

c)

Fluid friction

d)

All of the above

124.

The shape of the airplane is like a

a)

Bird

b)

Car

c)

Dog

d)

All

125.
What is the force acting between any two objects in the known universe all the time?
a)
Gravitational Force 
b)
Force of Friction 
c)
Normal Force 
d)
Electromagnetic Force 
126.

Frictional force depends on ____

a)

surface area in contact

b)

roughness of surface

c)

both a and b

d)

none of the above

127.
Imagine you travel to another planets. What will change as you walk around the surface of the planet- your mass or your weight?
a)
Mass
b)
Weight 
c)
Both 
d)
Neither 
128.
Friction is a force that acts in a(n) ___________ direction relative to a moving object.
a)
similar
b)
opposite
c)
parallel
d)
perpendicular
129.
To calculate net force, when forces are acting in the same direction, the forces are ...
a)
added 
b)
subtracted 
c)
mutiplied 
d)
divided 
130.
How would the absence of friction affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately. 
d)
The marble would remain at a constant speed.
131.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
132.
How do you lower the friction force?
a)
By a smooth surface
b)
By a rough surface
c)
By not pushing hard
d)
By pushing down
133.

What is rolling friction?

a)

friction between two surfaces that aren't moving relatively to each other

b)

friction between a rolling object and the surface that it is rolling on

c)

friction where an object rubs against another surface

d)

friction of something going through any type of liquid or air

134.
What type of fluid friction acts on an object moving through the air?
a)
Friction 
b)
Normal Force 
c)
Gravity 
d)
Air resistance 
135.
 What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
136.

Which of the following best describes two surfaces that are in contact with each other but are not in motion?

a)

kinetic friction

b)

static friction

137.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
d)
less friction doesn't affect speed
138.
The force of gravity acting on an object is the object's ______.
a)
Mass
b)
Matter
c)
Weight 
d)
Terminal velocity 
139.

When we rub our hands together _________.

a)

frictional force works between them

b)

energy is released

c)

our hands become warm

d)

all off the above

140.

Friction is one of many forces. Which type of force is it?

a)

Contact force

b)

Non-contact force

141.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
142.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
143.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
144.
Which of the statements is true?
a)
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
b)
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
c)
The bottom of the shoe exerts the same pressure as the bottom of the boot.
145.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
146.
Army tank tracks are useful for travelling through the mud because..
a)
they decrease the force the vehicle exerts on the ground
b)
they increase the force the vehicle exerts on the ground
c)
they decrease the pressure the vehicle exerts on the ground
d)
they increase the pressure the vehicle exerts on the ground
147.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
148.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
149.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
150.

Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test?

a)

How does the height of a ramp affect the distance a car will roll?

b)

How does the mass of the car affect the distance a car will roll?

c)

How does the surface of a ramp affect how fast a car will travel?

d)

How does the surface of a ramp affect the distance a car will roll?

151.

Watch the green man. Which force(s) are acting in this situation?

a)

Frictional Force only.

b)

Gravitational Force only.

c)

Muscular Force only.

d)

Muscular and Gravitational Force.

152.

At higher altitudes, which one becomes true?

a)

Higher the altitude, higher the atmospheric pressure.

b)

Higher the altitude, greater the force exerted by air molecules.

c)

It's an example of fluid pressure.

d)

The higher you go, lesser is the atmospheric pressure.

153.

Watch the green man skating. Choose all options that are correct.

a)

Both Contact and Non-Contact forces acting here.

b)

Non-Contact force is only acting here.

c)

Rolling Friction and Gravitational Force are present.

d)

Sliding Friction and Gravitational Force are present.

154.

Observe the image carefully. What's NOT happening here?

a)

People on the left side win the game.

b)

Nobody wins.

c)

This is balanced situation.

d)

Resultant Force is zero.

155.

Which sentence is the MOST RIGHT fit for this image?

a)

Flat shoes are better than heels.

b)

Pressure distribution is less for flat shoes.

c)

In muddy area, it's not a good idea to wear heels.

d)

Less the area, less is the pressure. So heels create less pressure.

156.

Let's say that the box in the picture will move. And it will move in the right direction. This is happening because-

a)

Both the men are pushing it towards right.

b)

Both the push and pull are in the opposite direction.

c)

Both the push and pull are in the same direction.

157.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

158.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
159.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
160.
How do you calculate Net Force if the forces are going different directions?
a)
add them together
b)
you don't
c)
using pi
d)
subtract them
161.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
162.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
163.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
164.
Army tank tracks are useful for travelling through the mud because..
a)
they decrease the force the vehicle exerts on the ground
b)
they increase the force the vehicle exerts on the ground
c)
they decrease the pressure the vehicle exerts on the ground
d)
they increase the pressure the vehicle exerts on the ground
165.
Atmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.
a)
True
b)
False
166.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
167.
Where is pressure the greatest on the dam?
a)
D
b)
C
c)
B
d)
A
168.

In Fig two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?

a)

Magnitude of force applied by A is greater than that of B

b)

Magnitude of force applied by A is smaller than that of B.

c)

Net force on the block is towards A.

d)

Magnitude of force applied by A is equal to that of B.

169.

A brick is kept in three different ways on a table as shown in Fig. The pressure exerted by the brick on the table will be

a)

maximum in position A

b)

maximum in position B

c)

maximum in position C

d)

equal in all cases.

170.

which force is non contact force

a)

gravitational

b)

magnetic

c)

electrostatic

d)

all of the above

171.

what kind of force is Friction

(a)  

172.

Watch the green man. Which force(s) are acting in this situation?

a)

Frictional Force only.

b)

Gravitational Force only.

c)

Muscular Force only.

d)

Muscular and Gravitational Force.

173.

At higher altitudes, which one becomes true?

a)

Higher the altitude, higher the atmospheric pressure.

b)

Higher the altitude, greater the force exerted by air molecules.

c)

It's an example of fluid pressure.

d)

The higher you go, lesser is the atmospheric pressure.

174.

Watch the green man skating. Choose all options that are correct.

a)

Both Contact and Non-Contact forces acting here.

b)

Non-Contact force is only acting here.

c)

Rolling Friction and Gravitational Force are present.

d)

Sliding Friction and Gravitational Force are present.

175.

Observe the image carefully. What's NOT happening here?

a)

People on the left side win the game.

b)

Nobody wins.

c)

This is balanced situation.

d)

Resultant Force is zero.

176.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
177.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

178.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
179.
How do you calculate Net Force if the forces are going different directions?
a)
add them together
b)
you don't
c)
using pi
d)
subtract them
180.

The sound of an object has 120 vibrations per minute. What is the frequency and time period?

a)

60 Hz & 0.167 seconds

b)

3 Hz & 0.33 seconds

c)

5 Hz & 0.2 seconds

d)

2 Hz & 0.5 seconds

181.

Which of the following is the inverse of time period?

a)

Amplitude

b)

Frequency

c)

Pitch

d)

Quality

182.
Sound waves travel the FASTEST through _____________.
a)
gases
b)
liquids
c)
solids
183.
Sound is caused by....
a)
molecules
b)
vibrations
c)
people
d)
space
184.
What is frequency?
a)
the number of vibrations per second
b)
how high or low a sound is
c)
the loudness or softness of a sound
d)
the back and forth movement of matter
185.
Sound does not travel in space because
a)
Space is too far away.
b)
There is no matter in space.
c)
Space is the final frontier
d)
Space has planets.
186.

Speed of light in air is:

a)

5100 m s-1

b)

3*108m s-1

c)

330 m s-1

d)

3*1010 m s-1

187.
Which of the following would you hear as a low pitched sound? 
a)
sound wave with a frequency of 50 Hz
b)
sound wave with frequency of 10,000 Hz
c)
sound wave with an intensity of 10 dB
d)
sound wave with an intensity of 100 dB
188.
High pitch sounds are caused by a ______ vibration
a)
fast 
b)
slow
c)
hard
d)
soft
189.
If a sound has a high amplitude then it also has a ____________!!!
a)
fast echo
b)
slow pitch
c)
high volume
d)
low volume
190.

Ryan makes an instrument from a drinking straw as shown. If he cuts the straw in half, what will happen to the pitch?

a)

decreases

b)

increases

c)

it will remain the same

d)

there is no sound

191.
Area of a longitudinal wave where particles are CLOSE together.
a)
Compression
b)
Rarefaction
192.

The volume of a sound is measured in units called ________

a)

decibels

b)

liters

c)

sound waves

193.
If you want to change the pitch of a sound, you have to change the ___
a)
frequency
b)
amplitude
c)
speed
d)
volume
194.
When a sound is louder what measurement gets bigger?
a)
Frequency 
b)
Amplitude 
c)
Wavelength 
d)
Crest
195.
What is B?
a)
crest
b)
trough
c)
compression
d)
rarefaction
196.
After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram above? 
a)
The distance represented by C would increase. 
b)
The distance represented by C would decrease. 
c)
The distance represented by D would increase. 
d)
The distance represented by D would decrease. 
197.
A student holds two vibrating objects.  Object A is vibrating faster than object B.  Which statement is true?
a)
A is louder than B
b)
B is louder than A
c)
A will have a higher pitch than B
d)
B will have a higher pitch than A
198.
How is sound produced by these instruments?
a)
Striking the surface
b)
vibrating columns of air
c)
plucking the strings
199.

What will be the frequency, if the string of a guitar is tight?

a)

low

b)

high

c)

no change

d)

none of these

200.

A cloud of gas and dust is called a....

a)

Solar System

b)

Nebula

c)

Galaxy

d)

Red Giant

201.

What is the largest planet?

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

202.

What takes up 99.8% of the mass in the solar system?

a)

The moon

b)

The sun

c)

Jupiter

d)

Saturn

203.

This marks the boundary of our solar system.

a)

Asteroid Belt

b)

Kuiper Belt

c)

Comet Belt

d)

Oort Cloud

204.

What belt separates the Rocky Planets and the Gas Giants ?

a)

Kuiper Belt

b)

Asteroid Belt

c)

Comet Belt

d)

Joivian Belt

205.

This planet has 79 confirmed moons.

a)

Saturn

b)

Venus

c)

Jupiter

d)

Mercury

206.

Pluto and Ceres are both dwarf planets found in our solar system.

a)

True

b)

False

207.
A force of attraction between any two objects is called _____________.
a)
static electricity 
b)
rotation
c)
gravity
d)
orbit
208.

What type of galaxy is the Milky Way Galaxy?

a)

Spiral

b)

Elliptical

c)

Irregular

d)

Flat

209.

A group of dust, stars, gas, and planets bound together by gravitational forces is called a....

a)

Solar System

b)

Nebula

c)

Galaxy

d)

Red Giant

210.
Besides Pluto, which planet is the furthest planet from the sun?
a)
Mercury
b)
Earth
c)
Neptune
d)
Uranus
211.
What is similar about all of the Outer Planets?
a)
small
b)
large
c)
few moons
d)
takes a short amount of time to go around the sun
212.

Which planet's average temperature make it the hottest planet in the solar system?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

213.
What celestial body is made of ice and cosmic dust?
a)
Meteor
b)
Meteoroid
c)
Asteroid
d)
Comet
214.
What theory tries to explain the origin of the universe?
a)
Big Bang Theory
b)
Copernican Theory
c)
Ptolemain Theory
d)
Galilean Theory
215.
Put the planets in order from the sun.
a)
Mercury, Venus, Mars Earth, Jupiter, Saturn, Uranus, Neptune, Pluto
b)
Mercury, Venus, Earth, Mars, Jupiter, Sarturn, Neptune, Uranus, Pluto
c)
Mercury, Venus, Earth, Mars, Jupiter, Sarturn,  Uranus, Neptune,Pluto
d)
Mercury, Venus, Earth, Mars, Sarturn, Jupiter, Neptune, Uranus, Pluto
216.

Galaxies are:

a)

gropus of Asteroids

b)

Groups of planets

c)

Groups of stars, gas and dust.

d)

Group of satellites

217.
What is true of all planets in our Solar System?
a)
They are large bodies in space that orbit the Sun
b)
Planets do not move, only stars move
c)
Planets make their own light
d)
Planets are larger than stars
218.
Planets form by a process called...
a)
accretion
b)
dark matter interactions
c)
electromagnetic radiation
d)
sun-dropping
219.
An irregular, rocky body that orbits the sun but is too small to be classified as a planet is known as a:
a)
asteroid
b)
meteor
c)
comet
d)
dwarf planet
220.

what pollutes the air

a)

pollutants

b)

pollutantants

c)

pollutiontants

d)

air

221.

what is greenhouse effect related to?

a)

animals

b)

water

c)

plants

d)

air

222.

what is the cause for starting of melting of Gangotri Glacier?

a)

Global Warming

b)

Altitude

c)

Heat

d)

None of these

223.

what is the MAJOR pollutant in the air?

a)

none of the above

b)

carbon monoxide

c)

propane

d)

oxygen

224.

which of these is a greenhouse gas

a)

carbon monoxide

b)

carbon dioxide

c)

helium

d)

sulfer

225.

The Taj Mahal is being affected by

a)

Air pollution

b)

Noise pollution

c)

Water pollution

d)

None of these

226.

Which of the following are the primary causes of water pollution?

a)

Plants

b)

Animals

c)

Human Activities

d)

None of these

227.

Highest percentage of air consists of

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Argon

228.

CNG is a

a)

Polluted fuel

b)

Clean fuel

c)

Harmful fuel

d)

None

229.

Pollution of water is responsible for

a)

. Oil refineries

b)

Paper factories

c)

Sugar mills

d)

All

230.
Which of these problems can be caused by air pollution?
a)
Respiratory problems
b)
Reduced food sources for humans
c)
Increased disease for humans
d)
Decrease in global temperatures
231.

What causes acid rain?

a)

High concentrations of sulfuric or nitric acid from pollution

b)

Fertilizer use

c)

Pesticide use

d)

CFCs

232.

Acid rain can damage

a)

Drinking water sources

b)

Aquatic life

c)

Architecture/buildings

d)

All options are correct

233.
Greenhouses gases
a)
Absorb and radiate heat
b)
Destroy the ozone layer
c)
Cause respiratory problems
d)
Create smog
234.
Greenhouse gases, in moderate amounts, keep the Earth's temperature stable
a)
True
b)
False
235.
Increase in which gas is primarily responsible for increased global warming?
a)
Carbon dioxide
b)
Water vapor
c)
Methane
d)
Nitric oxides
236.
TRUE or FALSE:  Although water pollution is bad, it doesn't actually cause anyone to die.
a)
TRUE
b)
FALSE
237.

Which of the following is NOT a source of water pollution?

a)

Discharge of untreated industrial waste

b)

Oil spills

c)

Sewage

d)

Usage of plastic straws

238.
What causes acid rain?
a)
High concentrations of sulfuric or nitric acid from pollution
b)
Fertilizer use
c)
Pesticide use
d)
CFCs
239.

Water pollution occurs when:

a)

Harmful substances enter a water supply

b)

Industries dispose of waste safely and correctly.

c)

Industries cut costs with waste disposal.

d)

None of the above.

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6th - 8th Grade