Which of the following is a derived quantity?

(a)

mass

(b)

time

(c)

area

(d)

length

SI unit of density is ________.

(a)

kg/m²

(b)

kg/m³

(c)

kg/m

(d)

g/m³

A particle is moving in a circular path of radius r. The displacement after half a circle would be _______.

(a)

Zero

(b)

R

(c)

2 r

(d)

r / 2

What is one way you might increase the stability of an object?

(a)

lower the centre of gravity

(b)

raise the centre of gravity

(c)

increase the height of the object

(d)

shorten the base of the object

Oxygen, hydrogen, and sulphur are examples for _______.

(a)

Metals

(b)

Non-metals

(c)

Metalloids

(d)

Inert gases

The sub-atomic particle which revolves around the nucleus is _______.

(a)

Atom

(b)

Neutron

(c)

Electron

(d)

Proton

Asexual reproduction in yeast is _________.

(a)

Spore formation

(b)

Fragmentation

(c)

Pollination

(d)

Budding

Climbing roots are seen in ______.

(a)

Betel

(b)

Black pepper

(c)

Both of them

(d)

None of them

Tobacco chewing causes ________ .

(a)

Anamia

(b)

Periodontitis

(c)

Tuberculosis

(d)

Pneumonia

Who uses the Photoshop software more ?

(a)

Teacher

(b)

Doctor

(c)

Painter

(d)

Photographer

The area of a leaf can be measured using a ________.

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graph sheet

The SI unit of volume is __________

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cubic metre or m³

The rate of change of velocity is_______.

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acceleration

____________ is the distance trtavelled by a body per unit time

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speed

Elements are made up of  ________ kinds of atoms.

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only one

_________is the most abundant gas in the atmosphere.

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Nitrogen

______________ is the total number atoms present in one molecule of an element, compound or a substance.

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Atomicity

The smaller particles found in the atom are called _______.

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Subatomic particles

__________is the basal swollen part of the Gynoecium.

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Ovary

Eyes are considered as ____ to the world.

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windows

Volume of liquids can be found using measuring containers.

(a) True

(b) False

A substance which contains less number of molecules per unit volume is said to be denser.

(a) True

(b) False

Lead is also known as plumbum.

(a) True

(b) False

A complete flower has four whorls.

(a) True

(b) False

Conical shaped root is carrot.

(a) True

(b) False

Area

(1)

Knot

Speed of ship

(2)

m²

Phylloclade

(3)

Yellow urine

Hepatitis

(4)

3D

Virtual Reality

(5)

Opuntia