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Unit-1 Chapter-1 MDC Eng

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What is the practice of environment and its rules called?

a)

Mathematics

b)

Physics

c)

Science

d)

Chemistry

2.

What is the reason behind the revolution of the moon around the Earth?

a)

Newton's laws of motion

b)

Coulomb's law

c)

Laws of electromagnetic force

d)

All of the above

3.

Which of the following is true in the law of gravitation?

a)

Fα(m1m2)/r2Fα(m_1m_2)/r^2

b)

Fα(m1m2)(r2)Fα(m_1m_2)\left(r^2\right)

c)

Fα1(m1m2)r2Fα\frac{1}{(m_1m_2)r^2}

d)

Fαr2(m1m2)F\alpha\frac{r^2}{(m_1m_2)}

4.

What term is used to describe the basic signs of all other signs that can be obtained from them?

a)

Basic sign

b)

Primary sign

c)

Derived sign

d)

Foundational sign

5.

What term is used to refer to a unit of understanding for fundamental quantities?

a)

Base Unit

b)

Derived Unit

c)

Primary Unit

d)

Fundamental Unit

6.

What is the word for the unit obtained for the fundamental quantity in the context of measuring the fundamental quantity?

a)

Primary unit

b)

Secondary unit

c)

Derived unit

d)

Fundamental unit

7.

How are various systems designed to choose a fundamental unit for each system?

a)

Disorganized way

b)

Based on historical significance

c)

According to the convenience of calculations

d)

In a standardized way

8.

What can be obtained by the multiplication and division of fundamental quantities?

a)

Fundamental quantity

b)

Derived quantity

c)

Base quantity

d)

All of the above

9.

What rules are applied to explain the fundamental sign?

a)

It should be independent of each other.

b)

All signs should be made from the fundamental sign.

c)

Both (a) and (c)

d)

None of the above

10.

According to the given information, how many basic elements are declared?

a)

6

b)

5

c)

8

d)

7

11.

Which fundamental quantity is represented in the given image?

a)

Kilogram

b)

Length

c)

Force

d)

Intensity of light

12.

What can be shown by the measurement of the given instrument?

a)

Mass

b)

Length

c)

Temperature

d)

Time

13.

What unit will be used to measure the given device?

a)

Minute

b)

Hour

c)

Second

d)

All of the above

14.

If a physical quantity is measured in basic units, what is the importance of this choice?

a)

It affects the measurement's color

b)

It ensures the accuracy of the measurement

c)

It affects the weight of the measurement

d)

It affects the height of the measurement

15.

What is the reason for displaying physical quantities in a basic unit's relationship?

a)

To make it easier for people to understand

b)

To create complex calculations

c)

To simplify the presentation

d)

To hide information

16.

Who is responsible for determining the units used for measurement?

a)

Engineers

b)

Scientists

c)

Politicians

d)

International Standards organizations

17.

In the context of physical measurement, if the weight of an elephant is 200 units and the weight of a goat is 20 units, then how much heavier is the elephant compared to the goat?

a)

5 units

b)

15 units

c)

10 units

d)

20 units

18.

What is the SI unit for length?

a)

meter

b)

kilogram

c)

ampere

d)

centimeter

19.

What is the SI unit for electric current?

a)

Meter

b)

Kilogram

c)

Second

d)

Ampere

20.

What SI unit is used to measure temperature?

a)

Mole

b)

Candela

c)

Kelvin

d)

Empire

21.

What is the SI unit for the quantity of substance?

a)

mole

b)

kelvin

c)

candela

d)

ampere

22.

Which SI unit is used to measure the intensity of light?

a)

Calvin

b)

Candela

c)

Mole

d)

Empire

23.

1 millimeter = _____ meter

a)

10-5

b)

103

c)

10-3

d)

10-1

24.

1 Giga Hertz = _____ Hertz

a)

199

b)

166

c)

10-9

d)

10-6

25.

10-6 meter = 1 ______

a)

nanometer

b)

megameter

c)

kilometer

d)

micrometer

26.

What is the value of the exponent shown in the figure 10?

a)

+6

b)

-6

c)

+3

d)

-3

27.

What will be the length of a pencil in meters?

a)

2×10-2

b)

2×122

c)

2×10-3

d)

2×10-1

28.

What is the primary characteristic of an element?

a)

Stability

b)

Regularity

c)

Availability

d)

Compatibility

29.

What is the fundamental characteristic of an element?

a)

Stability

b)

Regularity

c)

Availability

d)

Compatibility

30.

આંતરરાષ્ટ્રીય સિસ્ટમ તરીકે ઓળખાતી એકમોની પધ્ધતિ કોણ દ્વારા નક્કી કરવામાં આવી હતી?

a)

CPGM

b)

CPMG

c)

CMPG

d)

CGPM

31.

Translate this question to English language

a)

rad

b)

sr

c)

srd

d)

All of the above

32.

What is the explanation of the term 'timekeeping' for the cesium atom's time scale of 9,192,631,770 cycles?

a)

Minute

b)

Hour

c)

Second

d)

Day

33.

What is the Avogadro's constant?

a)

6.02214076 x 1023

b)

6.02214076 x 1022

c)

6.023 x 1022

d)

6.02214076 x 1021

34.

What does one mole represent in chemistry?

a)

Atoms or molecules in a specific number

b)

A type of chemical bond

c)

Unit of mass

d)

A type of reaction

35.

3 × 108 કિમત નીચે પૈકી કોના માટે સાચી છે?

a)

b)

c)

d)

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