wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Crop Production Class 8th

Total questions: 100

Worksheet time: 56mins

Name
Class
Date
1.

The process of loosening of the soil is called(a) tilling(b) harvesting(c) spraying(d) weeding

a)

a

b)

b

c)

c

d)

d

2.

Which is pesticides?(a) 2, 4-dichlorophenoxyacetic acid(b) Malathion(c) Metolachlor(d) Chloroform

a)

a

b)

b

c)

c

d)

d

3.

Seed drill is used for(a) harvesting(b) cleaning the seed(c) sowing(d) weeding

a)

a

b)

b

c)

c

d)

d

4.

Rabi crop is harvested in(a) January(b) March(c) October(d) Septembe

a)

a

b)

b

c)

c

d)

d

5.

Maize grow well during(a) June(b) January(c) April(d) September

a)

a

b)

b

c)

c

d)

d

6.

The agricultural instrument used for removal of weed is(a) sickle(b) khurpi(c) seed drill(d) plough

a)

a

b)

b

c)

c

d)

d

7.

Transplantation of seedling is done in(a) coffee(b) cocoa(c) rice(d) mango

a)

a

b)

b

c)

c

d)

d

8.

BHC (Benzene hexachloride) is a(a) weedicide(b) fertiliser(c) fungicide(d) pesticides

a)

a

b)

b

c)

c

d)

d

9.

The chemical substances rich in nutrients are called(a) fertiliser(b) weedicide(c) pesticides(d) herbicides

a)

a

b)

b

c)

c

d)

d

10.

The process of separation of grain from the chaff after harvesting is known as(a) tilling(b) threshing(c) spraying(d) weeding

a)

a

b)

b

c)

c

d)

d

11.

The soil matter formed by decayed organic matter is called(a) pesticide(b) fertiliser(c) humus(d) biocide

a)

a

b)

b

c)

c

d)

d

12.

Supply of water to crops at appropriate intervals is called(a) cultivation(b) irrigation(c) harvesting(d) sowing

a)

a

b)

b

c)

c

d)

d

13.

Which simple tool is used to remove weeds?(a) Sickle(b) Plough(c) Hoe(d) Seed drill

a)

a

b)

b

c)

c

d)

d

14.

Which instrument is used for spraying weedicides?(a) Sprayer(b) Cultivator(c) Plough(d) Combine

a)

a

b)

b

c)

c

d)

d

15.

…………. involves putting seeds in soil

(a)  

16.

…………. is organic matter obtained from plant or animal wastes.

(a)  

17.

…………. include all plants other than the crop.

(a)  

18.

…………. is a device to spread seeds in soil.

(a)  

19.

Which of the following is rich in organic nutrients?

a)

Potash

b)

Ammonium Sulphate

c)

Urea

d)

Compost

20.

IDENTIFY THE AGRICULTURAL TOOL

a)

SPADE

b)

KHURPI

c)

PLOUGH

d)

SICKLE

21.

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

22.

VERMICOMPOST IS A

a)

FERTILISER

b)

PESTICIDE

c)

MANURE

d)

NONE OF THESE

23.

THIS INSTRUMENT IS USED FOR

a)

HARVESTING

b)

CUTTING

c)

IRRIGATION

d)

TILLING

24.

SPECIFY THE PICTURE WHICH HELPS IN SOWING OF SEEDS

a)
b)
c)
d)
25.

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

26.

The process of loosening and turning of the soil using a tool or an implement is called___________

a)

Ploughing

b)

Levelling

c)

Sowing

d)

Broadcasting

27.

What happens if the seedling are sown without leaving a gap between them?

a)

They will grow quickly

b)

They will become strong

c)

They will get lost

d)

They will become unhealthy

28.

Which of these crops requires less water for growth?

a)

Paddy

b)

Groundnut

c)

Wheat

d)

cotton

29.

Urea is a _______________

a)

Manure

b)

Fertilizer

30.

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

31.

VERMICOMPOST IS A

a)

FERTILISER

b)

PESTICIDE

c)

MANURE

d)

NONE OF THESE

32.

THIS INSTRUMENT IS USED FOR

a)

HARVESTING

b)

CUTTING

c)

IRRIGATION

d)

TILLING

33.

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

34.

SPECIFY THE PICTURE WHICH HELPS IN SOWING OF SEEDS

a)
b)
c)
d)
35.

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

36.

WHICH OF THE FOLLOWING IS NOT A FERTILIZER?

a)

UREA

b)

NPK

c)

POTASH

d)

RHIZOBIUM

37.

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

38.

WHICH OF THE FOLLOWING IS A CEREAL CROP?

a)

PADDY

b)

MAIZE

c)

BARLEY

d)

ALL OF THESE

39.

WHICH OF THE FOLLOWING IS NOT ECO FRIENDLY?

a)

VERMICOMPOST

b)

GREEN MANURE

c)

BIO FERTILIZER LIKE Rhizobium

d)

AMMONIUM SULPHATE

40.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
41.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
42.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
43.
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.
44.
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
45.
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
46.
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
47.
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
48.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
49.

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?

50.

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.

51.

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.

52.

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.

53.

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.

54.

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.

55.

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.

56.

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

a)

increases

b)

decreases

c)

stays the same

57.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
58.
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
59.
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
60.

What is Mickey doing?

a)

Pushing the door

b)

Pulling the door

61.

What kind of force acts on a spring balance when the weight of an object is being measured with it?

a)

Elastic force

b)

Normal force

c)

Frictional force

d)

Gravitational force

62.

The SI unit of force is

a)

Pascal, Pa

b)

Newton, N

c)

Newton Meter, N m

d)

Kilogram, kg

63.

Diagram above shows a boy pulling

a box. How can he move the box

more easily?

a)

Using wooden rollers

b)

Move the box on a carpet

c)

Increase the weight of the box

d)

Create a pattern on the surface of the box

64.

The swimmer pushes off of the wall of the pool and moves forward. What is the ACTION in this example?

a)

Swimmer pushes off the wall of the pool

b)

Swimmer moves forward

65.

Diagram above shows a toy car is pushed hardly from its backside while it is still moving. What is the effect of force shown?

a)

Force can move a static object.

b)

Force can stop a moving object.

c)

Force can change the speed of a moving object.

d)

Force can change the direction of a moving object.

66.

An object weighs 500 N. It displaces 150 N of water. What is the apparent weight of the objects?

a)

3.33 N

b)

350 N

c)

500 N

d)

650 N

67.

An object should float in a liquid if...

a)

It is denser than the liquid

b)

It is less dense than the liquid

c)

It has the same density as the liquid

68.

Diagram above shows an example of lever. Which device at below is classified in the same class of lever?

a)
b)
c)
d)
69.

The effort distance of a lever is 500 N and 50 m respectively. If the load is 1000 N, what is the distance of the load from the fulcrum in order to maintain the balance of lever?

a)

5 m

b)

10 m

c)

20 m

d)

25 m

70.

A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?

a)

The larger person moving further away from the center.

b)

Moving the smaller person further from the center.

c)

Moving the smaller person closer to the center.

d)

Making the smaller person do nothing.

71.

The easiest way to open a heavy door is by applying the force

a)

Near the hinges

b)

At the top of the door

c)

In the middle of the door

d)

At the edge of the door far from the hinges

72.

What pressure does a 4000N horse exert on the ground if each foot is 10cm2?

a)

10 N/cm2

b)

40 N/cm2

c)

100 N/cm2

d)

400 N/cm2

73.

A person wearing steel toe capped boots and a person wearing high heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?

a)

The person wearing the boots because the boots have a smaller surface area in contact with the floor

b)

The person wearing the boots because the boots have a larger surface area in contact with the floor

c)

The person with the high heels because they have a larger surface area in contact with the floor

d)

The person with the high heels because they have a smaller surface area in contact with the floor

74.

The pressure of the gas in the balloon in the ice water will be:

a)

Less than that of the balloon in the boiling water.

b)

Greater than that of the balloon in the boiling water.

c)

The same as that of the balloon in the boiling water.

d)

Not enough information to answer the statement.

75.

Where could a hole be made to enable the water to be sucked up ?

a)

P and Q

b)

R and S

c)

Q and R

d)

P and S

76.

Identify the correct pressure at X and Y.

a)

X and Y has the same pressure.

b)

X: High pressure; Y: Low Pressure

c)

X: Low pressure; Y: High Pressure

d)

Not enough information to answer the statement.

77.

Air pressure is greater

a)

at the top of the mountain

b)

at the center of the mountain

c)

at the bottom of the mountain

78.

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

a)

The cost of construction is lower.

b)

Water pressure increases with depth.

c)

The design of this structure is stronger.

d)

Water pressure acts uniformly in all directions.

79.

Why is it dangerous to hold your breathe when SCUBA diving?

a)

Water pressure can force water into your lungs

b)

Air in your lungs can expand as you ascend, damaging them

c)

Air in your lungs can expand as you descend, damaging them

d)

Your lungs stretch as you go deeper due to increasing pressure

80.

Diagram shows an example of lever. Which device is classified in the same class of lever?

a)
b)
c)
d)
81.

Diagram shows a type of force acting on a duck. what is the type of force?

a)

Normal force

b)

Frictional force

c)

Elastic force

d)

Buoyant force

82.

Diagram shows a toy car is pushed hardly from its backside while it is still moving. What is the effect of force shown?

a)

Force can move a static object

b)

Force can change the direction of a moving object

c)

Force can change the speed of a moving object

d)

Force can stop a moving object

83.

What are the factors affecting pressure?

a)

Load and force

b)

Surface area and force

c)

Surface area and load

d)

Surface area and volume

84.

Sarah wearing high-heeled shoes to school while teaching. What is the pressure exerted by the shoe on the floor if the base area of the shoe is 0.04 m2 and her body weight is 42 kg.

[1 kg = 10 N]

a)

10 000 Nm-2

b)

10 250 Nm-2

c)

10 500 Nm-2

d)

10 720 Nm-2

85.

Diagram shows a farmer carrying two baskets, P and Q with mass of 60 kg and 40 kg respectively. What is the distance between Q and the farmer so that the baskets are balance?

[1 kg = 10 N]

a)

1.0 m

b)

1.5 m

c)

2.0 m

d)

2.5 m

86.

Diagram shows a siphon. Which of the following enables the siphon to function?

a)

Gravitational force

b)

Water pressure

c)

Potential energy

d)

Atmospheric pressure

87.

Which of the following show the balance lever system?

a)

I and II

b)

III and IV

c)

II and III

d)

I and IV

88.

Which of the following use the principle of air pressure?

a)

I and II

b)

III and IV

c)

II and III

d)

I and IV

89.

What is the type of force based on the given statement below?

a)

Electrostatic force

b)

Magnetic force

c)

Gravitational force

d)

Frictional force

90.

Ali redecorated his house lawn. He used a wheelbarrow to help him to carry and move construction materials and plants for the purpose. Ali used wheelbarrow to transfer 48 kg of rock. Calculate the total force to lift the wheelbarrow.

[1kg = 10N]

a)

200 Newton

b)

100 Newton

c)

150 Newton

d)

250 Newton

91.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
92.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
93.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
94.
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
95.
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.
96.
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
97.
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
98.
Look at the pressure triangle. How do we calculate the force?
a)
f ÷ a
b)
f x p
c)
p x a
d)
f ÷ p
99.
A person wearing steel toe capped boots and a person wearing stilleto heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?
a)
The person wearing the boots because the boots have a larger surface area in contact with the floor
b)
The person with the stiletto heels because they have a larger surface area in contact with the floor
c)
The person wearing the boots because the boots have a smaller surface area in contact with the floor 
d)
The person with the stiletto heels because they have a smaller surface area in contact with the floor
100.

Which one of the following forces is a contact force?

a)

electrostatic force

b)

magnetic force

c)

force of friction

d)

force of gravity

Similar Resources on Wayground

Chapter 3

101 questions

Chapter 3

quiz

Worksheet

•

7th - 9th Grade

CCEA Single Award Biology

100 questions

CCEA Single Award Biology

quiz

Worksheet

•

8th Grade - University

Savci – celkové opakování

100 questions

Savci – celkové opakování

quiz

Worksheet

•

8th Grade

Cells Unit Review

105 questions

Cells Unit Review

quiz

Worksheet

•

8th - 10th Grade

Science 8 Final Review

100 questions

Science 8 Final Review

quiz

Worksheet

•

8th Grade

Cells Review #2

97 questions

Cells Review #2

quiz

Worksheet

•

8th Grade

Benchmark #3 Review

100 questions

Benchmark #3 Review

quiz

Worksheet

•

7th - 8th Grade

Exam 7 Practice Problems

105 questions

Exam 7 Practice Problems

quiz

Worksheet

•

7th Grade - University