Physical World and Measurement Test

Result

Physical World and Measurement Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

The density of material of a cube is measured by measuring its mass and length of its side. If the maximum errors in the measurement of mass and length are 3% and 2%, respectively, then the maximum error in the measurement of density is

A
1%

B
5%

C
7%

D
9%
Question 2
1 / -0

The word Science originates from the Latin verb Scientia meaning

A
to know

B
to experience

C
to observe

D
to see

Solution

The phrase "scientia potentia est" (or "scientia est potentia" or also "scientia potestas est") is a Latin aphorism meaning "knowledge is power"
Question 3
1 / -0

Find the area of a plate of length 5 ± 0.1 cm and breadth 2 ± 0.01 cm.

A
10 ± 0.2 cm²

B
10 ± 0.025 cm²

C
10 ± 0.001 cm²

D
10 ± .25cm²
Question 4
1 / -0

What is the unit of Reynold Number?

A
Mole^–1

B
No unit

C
Area

D
Pascal
Question 5
1 / -0

The displacement of a particle moving along x-axis is given as x = at + bt²- ct³, where t is time. The respective dimensions of a, b and c are

A
L², T, LT²

B
LT², LT, LT^-2

C
LT^-1, LT^-2, LT^-3

D
L, LT, T²
Question 6
1 / -0

The physical quantity having the same dimensions as those of surface tension is

A
angular momentum

B
linear momentum

C
force constant

D
Boltzmann constant
Question 7
1 / -0

Physics is a

A
Natural Science

B
Engineering Science

C
Applied Science

D
Mathematical Science
Question 8
1 / -0

A scientific theory

A
can be revised if required to fit new phenomenon or data

B
cannot be changed but can be reformulated

C
is changed to suit new fashion among scientists

D
is fixed once and for all because it is logical
Question 9
1 / -0

A scientific theory is accepted if

A
The theory is derivable from other theories logically.

B
predictions of the theory are confirmed by experiments

C
The theory is approved by a panel of people after studying the theory only

D
The theory is very simple elegant or very complicated

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Re-Attempt Weekly Quiz Competition

Physical World and Measurement Test - 2

Result

Physical World and Measurement Test - 2

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Rank

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SHARING IS CARING

Question 1

1%

5%

7%

9%

Question 2

to know

to experience

to observe

to see

Solution

Question 3

10 ± 0.2 cm2

10 ± 0.025 cm2

10 ± 0.001 cm2

10 ± .25cm2

Question 4

Mole–1

No unit

Area

Pascal

Question 5

L2, T, LT2

LT2, LT, LT-2

LT-1, LT-2, LT-3

L, LT, T2

Question 6

angular momentum

linear momentum

force constant

Boltzmann constant

Question 7

Natural Science

Engineering Science

Applied Science

Mathematical Science

Question 8

can be revised if required to fit new phenomenon or data

cannot be changed but can be reformulated

is changed to suit new fashion among scientists

is fixed once and for all because it is logical

Question 9

The theory is derivable from other theories logically.

predictions of the theory are confirmed by experiments

The theory is approved by a panel of people after studying the theory only

The theory is very simple elegant or very complicated

User

Question Analysis

My Perfomance

Score

-

Rank

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10 ± 0.2 cm²

10 ± 0.025 cm²

10 ± 0.001 cm²

10 ± .25cm²

Mole^–1

L², T, LT²

LT², LT, LT^-2

LT^-1, LT^-2, LT^-3

L, LT, T²