10th Science EM Creative inside 1 mark online test part 1 CentumStudy.com

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. The anticogular present in saliva of leech is called ------?

Ethelene
Iodine
Heparin
Hirudin

A fielder giving a swing while catching a ball is an example of ------?

Newton‘s II law
Impulse
Inertia
Newton’s I law

. Mitocondrial membarane size of ---------- .

60-70 Å
50-70Å
40-50Å
50-60 Å

The mitochondria shape is -------------.

all the above
0.5-2.0micrometer
0.2-2 micrometer
0.2-0.5micrometer

. Change in momentum can be achieved by,

A large force acting for a longer period of time
A short force acting for a longer period of time
A large force acting for a short period of time
Both a and c

. Who discovered the basic principles of Heridity?

Punnet
Erwin Chargaff
Darwin
Mendel

. Which country first in world to launch the national wide family planning programme in 1952?

Russia
America
India
China

. Which instrument used for records the electrical impulses of brain.

. Example of liquid metal?

The melting point of aluminum ------------?

6600C
620 0C
6000C
640 0C

. The value of Boltzmann constant?

1.38x10-23 J/K
1.38x1023 J/K
1.38x10-33 J/K
1.38x1033 J/K

. The molecular formula of Rust?

Fe2O3.xH2O
Fe2O3.4H2O
Fe2O3.3H2O
Fe2O3.2H2O

. The gram molar mass of the ca3 (Po4)2 is---?

308g
408g
44g
16g

. Each neuron can transmit ----- nerve impulses per second?

100
1000
100000
1000

. Leeches prevent blood clotting by secreting a protein called---------.

none
papillae
hirudin
crop

. Compound microscope has -------- times more magnification power than simple microscope.

50—200
50—250
50—100
100—150

. The floor of the buccal cavity is occupied by a --------tongue

tear
None
caecum
muscular

. --------- lenses are used in wide angle spy hole in doors.

Concave
biconcave
convex
both a&b

. Which hormone is called Time messenger hormone?

Oxytocin
Melatonin
Insulin
Thyroxine

. Pith tissue present in ------?

Dicot stem
none
both a&b
Monocot stem

. The life span of RBC is-----days?

. Atrioventricular bundle was discovered by ----?

W.Harvi
His
Darwin
N.Grew

The rate of change of momentum of an object is directly proportional to -----?

direction of the body
Velocity of the body
Mass of the body
Net force of the body

------- is the largest portion of alimentary canal.

Caeca
Pharynx
Crop
Sphincters

. Who is the father of modern physiology?

None
Negammaiah .grew
Bundle of His
William Harvi

. Which of the following is a homodiatomic molecule?

Oxygen
Hydrogen
Helium
Co2

. Parallel equal forces are acting in opposite direct ions in the same line of action, then resultant force is equal to--?

Zero
Greater than zero
Remains same
Lesser than zero

. A body will be in equilibrium, if the resultant force of all the forces acting on the body is equal to-----?

Same as actual weight
Lesser than actual weight
Greater than actual weight
Zero

. Change of momentum is equal to -----?

Velocity
Force
Couple
Impulse

Which is the first discovered hormone?

Relaxin
Thyroxine
Secretin
Oxytocin

. Which of the following the example of Hygroscopy?

CaCl2
KOH
NaOH
SiO2

. The body nervous system can transmit signals at speeds of ------?

350km/h
220
220mph
both a& c

The unit is impulsive force is ----------.

None
both a&b
Ns
kgm/s

. Menstrual Hygiene day is ------?

May 22
May 31
May 30
May 21

The pathway taken by nerve impulse to accomblishe reflex action is called-----?

Sensory neuron
Spinal cord
Reflex arc
Spinal nerves

. The SI unit of Temperature?

Kelvin
Degree
Watt
Fahrenheit

. Who is the Father of Endocrinology‘?

None
W.M. Baylis
Thomas Addison
Harrington

. The blister copper contains --------- % pure copper and -------% of impurities

99.5& 0.5
99 & 1
95.5& 4.5
98& 2

Qualitative definition of force is given by

Newton‘s II law of motion
Newton’s law gravitation
Newton’s III law of motion
Newton’s I law of motion

. Action of a lever is an example of ------?

Balanced force
Impulse
Torque
Unbalance force

The value of acceleration due to gravity on the surface of the moon is ---------.

1.925 ms-2
1.625 ms-2
all the above
1.725 ms-2

. The unit of ionization energy is ------------

kJmol-1
both a&b
kg
kJ/mol

Astronauts feel weightlessness in space because------?

They are under free fall condition
There is no gravitational force in space coat
They are floating in space
They wear a weightless

. If a person whose mass is 60kg stands on the surface of Earth, his weight would be 588 N his weight in moon is -----?

97.5 N
98 N
97 N
96.5 N

. The unit of moment a couple is ----------.

None
Newton
N/m
Nm

The gap between the incisors and premolar is called-------?

Heterodont
Buccalcavity
Teeth
Diastema

The resistivity of Copper?

12.9x10-8 ῼm
1.62x10-8 ῼm
12.6x10-8 ῼm
6.84x10-8 ῼm

Which of the following hygroscopic substance?

FeCl3
P2O5
CaCl3
NaOH

The diameter of chloroplast is ----------.

5-10 micrometer
2-10micrometer
2-8 micrometer
None

. Which of the four chambered heart animal?

Amphibians
Aves
Reptiles
Fishes

metal? Which of the following low density

all the above
Copper
Aluminum
Iron

. The unit of specific resistance?

Ohm
watt
ampere
Ohm.meter

. Which is the first plant hormone?

Auxin
Abscisic acid
Gibberlins
Cytokinin

. The first scientific theory of the atom was proposed by ----------.

Rutherford
J.J. Thomson
None
Neils Bohr

. The formula of calculate Mass of Earth --------------

M=G R2/g
both a&b
None
M=gR2/G

. If lift is falling down freely, apparent weight is equal to-------?

Same as actual weight
Greater than actual weight
Zero
Lesser than actual weight

The solubility of Glucose in 100g of water at 250C?

. Incomplete four chambered heart found in ------?

Fish
Reptiles
Amphibians
Aves

. --------- teeth are absent in rabbit

incisors
premolar
canines
molar

. A system can be brought to equilibrium by applying a force which is

Equal in magnitude but opposite direction as that of resultant force
Equal in magnitude and in opposite same direction as that of resultant force
Greater than the magnitude of resultant force but in opposite direction
Greater than the magnitude of resultant force and in same direction

. The mass of proton is approximately ------ amu .

2 amu
1amu
4 amu
3amu

The first Telescope was invented by ------------- in 1608.

Newton
Kepler
Edison
J.Lippershey

The molecular formula of Blue Vitrol is--------?

CaSO4. 2H2O
FeSO4. 7H2O
MgSO4. 7H2O
CuSO4. 5H2O

. Which hormone is called life saving hormone?

Cortisol
Aldosterone
Thymosin
Insulin

Which blood is called ‗Universal Donor‘?

AB+ve
AB-ve
O-ve
B+ve

. When a lift is moving upward, apparent weight is-----?

Same as actual weight
Lesser than actual weight
Greater than actual weight
Zero

Which microscope used in jewelers?

both a& b
simple
Compound
Cylindrical

. ------ helps in regulating respiration.

Forebrain
Hypothalamus
Hind brain
Pons

. The SI unit of gravitational unit of force if -----?

Kg
Kms
Kgf
None

. The value of universal Gas Constant?

8.31x10-23Jk-1
8.31Jmol-1k-1
8.31x10-23Jk-1
1.381x10-23Jk-1

. The ------- measures the impact of a force on a body.

Linear momentum
Balanced force
Torque
Impulse

. The SI unit of Heat Energy?

Degree
Fahrenheit
Joule
Watt

. The value of cubical expansion of mercury is --------

20.7 x10-5k-1
None
6 x10-5k-1
18.2x10-5k-1

. Calculate the velocity of a moving body of mass 5Kg whose linear momentum is 2.5Kgms-1

5 ms-1
2.5 ms-1
2 ms-1
0.5 ms-1

. --------- is the largest portion of alimentary canal

rectum
buccal cavity
crop
anus