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VIII SCIENCE QUIZ

Total questions: 30

Worksheet time: 14mins

Name
Class
Date
1.
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
2.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
3.
Force depends on
a)
Force
b)
mass
c)
acceleration
d)
mass and acceleration 
4.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
5.
Which one is balanced?
a)
top
b)
bottom
c)
both
d)
neither
6.
Find the net force: 15 N to the right, and another 15 N to the right.
a)
0 N Right
b)
0 N Left
c)
30 N Left
d)
30 N Right
7.
You and your friend are playing tug of war. Your friend pulls with a force of 55 N to the right. You pull with a force of 65 N to the left. What is the net force on the rope?
a)
10 N left
b)
20 N
c)
10 N left
d)
10 N right
8.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
9.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
10.

The use of lubricants in motor vehicles ______________

the excessive frictional force in the engine

compartment.

a)

reduces

b)

increases

c)

reuses

d)

enlarge

11.

IDENTIFY THE AGRICULTURAL TOOL

a)

SPADE

b)

KHURPI

c)

PLOUGH

d)

SICKLE

12.

NAME THE SEASON OF OF THIS CROP

a)

WINTER

b)

SUMMER

c)

RAINY

d)

SPRING

13.

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

14.

WHAT IS CROP?

a)

WHEN DIFFERENT PLANTS ARE CULTIVATED ON SAME PATCH OF LAND ON LARGE SCALE

b)

WHEN SAME TYPE OF PLANTS ARE CULTIVATED IN SAME PATCH OF LAND ON LARGE SCALE

c)

WHEN SAME TYPE OF PLANTS ARE CULTIVATED IN DIFFERENT LANDS IN LESS NUMBER

d)

NONE OF THE ABOVE

15.

WHICH OF THE FOLLOWING CROP GROWS IN WINTER?

a)

PEA

b)

PADDY

c)

MAIZE

d)

SOYABEAN

16.

DURATION OF RABI CROP IS

a)

JUNE TO SEPTEMBER

b)

JUNE TO DECEMBER

c)

OCTOBER TO MARCH

d)

MARCH TO JUNE

17.

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

18.

WHICH OF THE FOLLOWING IS NOT A FERTILIZER?

a)

UREA

b)

NPK

c)

POTASH

d)

RHIZOBIUM

19.

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

20.

Which of the following is rich in organic nutrients?

a)

Potash

b)

Ammonium Sulphate

c)

Urea

d)

Compost

21.
What are some advantages of synthetic materials?
a)
Cheaper to manufacture 
b)
Stronger than similar products made from natural material
c)
Often better quality 
d)
All of the above
22.
What is the difference between a natural and synthetic material?
a)
Natural material is made from chemicals and synthetic is made from nature
b)
Natural material is made directly from nature and synthetic material is made from chemicals
c)
Natural material is made from petroleum and synthetic material is made from wool
d)
Natural material is made from trees and synthetic materials are made from plastics
23.
Which of the following is a synthetic fibre?
a)
Terrywool
b)
Terrycot
c)
Terylene
d)
All of them.
24.
It is not advisable to wear clothes made of synthetic fibre while working near fire because 
a)
They are uncomfortable in those works
b)
They melt on heating and cause heavy burns
c)
They do not absorb moisture
d)
They are shiny and lustrous.
25.
Lycra is a synthetic fibre which is also known as
a)
nylon.
b)
acrylic
c)
spandex
d)
rayon.
26.

Read the given statements and mark the appropriate answer.

Statement 1: Fabric made from this polyester does not get wrinkled easily.

Statement 2: Polyester is a natural fibre.

a)

Both statements 1 and 2 are true and

statement 2 is the correct explanation

of statement 1.

b)

Both statements 1 and 2 are true

but statement 2 is not the correct

explanation of statement 1.

c)

Both statements 1 and 2 are false.

d)

Statement 1 is true and statement 2

is false.

27.

Atul was climbing mountain and he wondered about the strength of rope in his hand which was stronger than a steel wire. This rope would have been made up of:

a)

Polyester

b)

Nylon

c)

Rayon

d)

Cotton

28.

Which of the following is not a blended fibre?

a)

Terrycot

b)

Terrylene

c)

Polycotton

d)

Terywool

29.

The first synthetic fibre formed from a natural material wood pulp is

a)

acrylic

b)

rayon

c)

nylon

d)

polyester

30.

Main source of raw material for producing synthetic fibre is :

a)

CNG

b)

LPG

c)

Refined oil.

d)

Petroleum

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