প্রাথমিক শিক্ষা সমাপনি পরীক্ষা Elementary Science's Short Questions(M.C.Q) , Class - 5 ( Chapter - 9)

Chapter-9

Written by: Mohammad Arif Mohiuddin           Phone : 01553516901

1)     What is called technology?

Ans: the instruments or material which men has invented and used to control environment and solve problems are called technology.

2)     Why we are transforming materials and energy?

Ans: we are transforming materials and energy in different areas in order to sustain our lives.

3)     How many years ago weapons were made by human grinding stones?

Ans: About two million years ago.

4)     How many years ago man has learnt how to make fire?

Ans: About fifty thousand years ago.

5)     Which is changing and improving with the passage of time?

Ans: Technology

6)     The more civilization advances, the more we see the new technologies.

7)     In the modern civilization it is very important to be punctual.

8)     Our feelings of necessity and the will to solve the problems have encouraged the inventions of technology.

9)     Science and technology are deeply related.

10)Necessity is the mother of invention.

11)What is the foundation of science?

Ans: The foundation of science was inquisitiveness or the will to know. To know the nature of different objects and events. To discover the causes of different events and find out the relation among them.

12)How we measure our fever or body temperature?

Ans: By using thermometer.

13)Which is the main area of the modem technology?

Ans: The main area of the modem technology is information technology.

14)Which have encouraged the inventions of technology?

Ans: Our feeling of necessity and the will to solve problems have encouraged the inventions of technology.

15)Scientists have come to know the laws of nature after die progress of science over a long period of time.

16)Scientists discover the reasons behind the origin of the earth.

17)What is the relation between scientists and biologists?

Ans: Biologists have discovered the laws relating to the characteristics, structure, growth and development of plants. Scientists conduct researches to know how light, air ,water and other things influence plants

18)Why we are dependent on technology?

Ans: We are dependent on technology for our life, expectations, protections against disasters and all other things.

19)The invention of new technology was accidental.

20)Scientists and a technologists work with different objects.

21)Which were the reasons behind the tools and instruments invented by man during the early stages?

Ans: The tools and instruments invented by man during the early stages were the results of trial and experiment.

22)With what technology is related?

Ans: Technology is related to the solving of practical problems by making tools and inventing different techniques.

23)Who discovered the reasons behind the origin of the earth?

Ans: Scientists

24)Scientists have discovered the structure of objects and the effects of energy on them.

25)What is the relation between science and technology?

Ans: The relation between science and technology is that Science discovers the laws of nature and technology applies the laws to invent instruments and solve practical problems.

26)Which must be followed to invent technology consciously?

Ans: The laws of nature.

27)What technologists apply?

Ans: Technologists apply the obtained knowledge to increase the production of crops.

28)What technology teaches us?

Ans: What technology teaches us how the use of technology increases our efficiency in work and improves the environment.

29)Due to the deep relation between science and technology the progress of science and technology has become fast.

30)Technology is as old as civilization.

31)Technology is not dependent on science only, the progress of science is also dependent on technology.

32)For what are the two main reasons, major change in agricultural technology took place?

Ans: A major change in agricultural technology took place due to two main reasons. One is that the biologists discovered how plants produce food taking energy from sunlight and other required elements from soil, water and air. The other is the invention of new agricultural instruments and mechanization of agriculture

33)What is the greatest revolution occurred during the end of the twentieth century?

Ans: The greatest revolution occurred during the end of the twentieth century through the use of bio-technology in agriculture.

34)In how many ages the progress of agricultural technology may be divided?

Ans: The progress of agricultural technology may be divided into three ages.

35)What is the most dangerous application of modern technology?

Ans: The most dangerous application of modern technology is the development of weapons of war and their uses.

36)The education of science and technology must be humane.