Class 5 Social Science The Machine Age Question Answers

Class 5 The Machine Age Question Answers

 

Class 5 The Machine Age Question Answers | The Machine Age Notes for students.

Answer the following questions:

 

[Q] Which tools are made from iron

Tools such as axes, ploughs, and shovels were made from iron.

  

[Q] Who invented the steam engine?

James Watt invented the steam engine

[Q] Who made the first railway engine

George Stephenson built the first railway engine.

 

[Q] What is the Industrial Revolution?

The huge impact due to change from handmade goods to machine made goods is known as the industrial revolution

[Q] What is the meaning of mass production? How it is useful.

The term mass production refers to manufacturing large quantities of goods at a low cost in factories. Mass production allows the manufacture of a large number of articles in a short period of time, and the cost of manufacturing each article is reduced.

[Q] What are the different sources of energy?

Nuclear energy solar energy biogas and wind energy are resources of energy, machines get energy from coal and petroleum and electricity.

[Q] Who developed an engine that was run on petrol?

Gottlieb Daimler

[Q] Who invented engines that run on diesel?

Rudolf Diesel, a German engineer, invented the diesel engine.

 

[Q] Who discovered electricity?

Benjamin Franklin Discover electricity

[Q] Define terms 

Hydroelectricity – 

Electricity produced by the force of running water in huge dams is called hydroelectricity and such dams are called hydroelectric projects.

Nuclear energy- 

Nuclear energy is energy produced by splitting an atom.

Solar energy – 

The energy that we get from the heat of sun, called solar energy. It is used for cooking heating etc. Solar electricity is also used to light homes

Compressed natural gas (CNG)- 

CNG is an alternative to petrol used in many vehicles. It causes less pollution as compared to other fuels

Biogas

Biogas is produced from animal dung. This gas is also called Gobar gas it is usually set up in the villages and it is used for cooking and lighting the lamps.

Wind energy

Wind energy is used as a source of energy. It is designed windmills. Wind energy is also used in grinding grain when they are usually set up in coastal areas .

 

Fill in the blanks:

1. The first metal to be discovered was ………..
2. A mixture of two metals is called an ……….
3. ……….. was made by mixing copper and tin.
4. ……………. is harder than Copper and bronze
5. The industrial revolution begins in……………….
6. Nuclear energy is produced by splitting an ……………….
7. Biogas is produced from animal……………… 
8. Windmills are usually setup and …………. areas 
9. Steam engine was invented in ………….
10. Petroleum is also called ……………. oil which means Rock oil

Answer – Fill in the blanks

1. Copper
2. Alloy
3. Bronze
4. Iron
5. England
6. Atom
7. Dung
8. Coastal
9. 1769
10. Mineral

Class 5 Social Science