Physical World and Measurement Test

Result

Physical World and Measurement Test - 3

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Atomic and molecular phenomena are dealt with by

A
Newtonian Mechanics

B
Quantum Mechanics

C
fluid Mechanics

D
applied Mechanics

Solution

Quantum mechanics is a physical science dealing with the behaviour of matter and energy on the scale of atoms and subatomic particles / waves.
Question 2
1 / -0

Classical Physics deals mainly with

A
surface phenomena

B
microscopic phenomena

C
transport phenomena

D
macroscopic phenomena

Solution

Classical physics is the study of motion, projectiles, pulleys, and the planets. It mainly deals with the movement of large objects (macroscopic) through space at a relatively low slow speeds.

Classical physics deals with the mechanics of an object’s motion in response to a force. Because of this, classical physics is often referred to simply as mechanics or kinematics.
Question 3
1 / -0

The unit of 1/2 gt² (where g = acceleration due to gravity, and t = time) is equal to the unit of

A
height²

B
speed²

C
distance

D
time²
Question 4
1 / -0

In Physics, we attempt to explain

A
diverse physical phenomena in terms of a large number of concepts and laws

B
diverse physical phenomena in terms of a few concepts and laws

C
diverse physical phenomena in terms of logic

D
diverse physical phenomena in terms of Einstein’s and Newton’s laws

Solution

Physics, the study of matter and energy, is an ancient and broad field of science. The word 'physics' comes from the Greek 'knowledge of nature,' and in general, the field aims to analyze and understand the natural phenomena of the universe.
Question 5
1 / -0

The length, breadth and thickness of a block are given as l = 12 cm, b = 6 cm and t = 2.45 cm, respectively. The volume of the block, according to the idea of significant figures, should be

A
1 x 10² cm³

B
2 x 10² cm³

C
1.763 x 10² cm³

D
1.83 x 10²cm³
Question 6
1 / -0

If the distance covered by a particle in t seconds is x metres, which is given by x = a + bt – ct², where a, b and c are constants, then the unit of c is

A
ms^-1

B
m

C
ms^-2

D
ms
Question 7
1 / -0

Reductionism is

A
reducing all phenomena to logical consequences of Einstein’s laws

B
Deriving the properties of a bigger, more complex, system from first principles

C
Deriving the properties of a bigger, more complex, system from the properties and interactions of its constituent simpler parts.

D
reducing all phenomena to logical consequences of Newton’s laws

Solution

Reductionism is breaking down of a complex system in to simple constituent systems to so that laws of physics can be applied on these systems and we can understand the working of the complex system.
Question 8
1 / -0

The physical quantity having the dimensional formula [M^-1L^-3T³A²] is

A
resistance

B
resistivity

C
conductivity

D
electromotive force
Question 9
1 / -0

Which of the following is a possible final step in applying the scientific method

A
Formulation of a question

B
Analysis of test results

C
Formulating a hypothesis

D
Building a theory

Solution

Your experiment tests whether your prediction is accurate and thus your hypothesis is supported or not. It is important for your experiment to be a fair test.

You conduct a fair test by making sure that you change only one factor at a time while keeping all other conditions the same.

You should also repeat your experiments several times to make sure that the first results weren't just an accident.
Question 10
1 / -0

Which of the following is a possible first step in applying the scientific method

A
Building a theory

B
Conducting tests

C
Formulation of a question

D
Formulating a hypothesis

Solution

The scientific method starts when you ask a question about something that you observe: How, What, When, Who, Which, Why, or Where? For a science fair project some teachers require that the question be something you can measure, preferably with a number. Add image of question 16686

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Physical World and Measurement Test - 3

Result

Physical World and Measurement Test - 3

Score

-

Rank

-

SHARING IS CARING

Question 1

Newtonian Mechanics

Quantum Mechanics

fluid Mechanics

applied Mechanics

Solution

Question 2

surface phenomena

microscopic phenomena

transport phenomena

macroscopic phenomena

Solution

Question 3

height2

speed2

distance

time2

Question 4

diverse physical phenomena in terms of a large number of concepts and laws

diverse physical phenomena in terms of a few concepts and laws

diverse physical phenomena in terms of logic

diverse physical phenomena in terms of Einstein’s and Newton’s laws

Solution

Question 5

1 x 102 cm3

2 x 102 cm3

1.763 x 102 cm3

1.83 x 102 cm3

Question 6

ms-1

m

ms-2

ms

Question 7

reducing all phenomena to logical consequences of Einstein’s laws

Deriving the properties of a bigger, more complex, system from first principles

Deriving the properties of a bigger, more complex, system from the properties and interactions of its constituent simpler parts.

reducing all phenomena to logical consequences of Newton’s laws

Solution

Question 8

resistance

resistivity

conductivity

electromotive force

Question 9

Formulation of a question

Analysis of test results

Formulating a hypothesis

Building a theory

Solution

Question 10

Building a theory

Conducting tests

Formulation of a question

Formulating a hypothesis

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

height²

speed²

time²

1 x 10² cm³

2 x 10² cm³

1.763 x 10² cm³

1.83 x 10²cm³

ms^-1

ms^-2