Work and Energy

Class 9 Work & Energy - Fact

Learn more about Work and Energy of Class 9.


Sound is just another form of energy, and one that isn?t too different from heat. Sound waves are the momentary compression and expansion of air molecules as they travel away from their source. What separates sound from heat is essentially how organized t


Class 1



Class 1 Air & Water - Fact
Share :
Class 1 Animals - Fact
Share :
Class 1 Good Habits & Safety Rules - Fact
Share :
Class 1 Human Beings & Their Needs - Fact
Share :
Class 1 Living & Non- Living Things - Fact
Share :
Class 1 Plants - Fact
Share :

Class 2



Class 2 Animals - Fact
Share :
Class 2 Family And Festivals - Fact
Share :
Class 2 Food - Fact
Share :
Class 2 Housing And Clothing - Fact
Share :
Class 2 Human Body - Fact
Share :
Class 2 Occupations - Fact
Share :

Class 3



Class 3 Birds - Fact
Share :
Class 3 Earth And Universe - Fact
Share :
Class 3 Food - Fact
Share :
Class 3 Housing And Clothing - Fact
Share :
Class 3 Human Body - Fact
Share :
Class 3 Light, Sounds And Force - Fact
Share :
Class 3 Matter And Materials - Fact
Share :
Class 3 Our Environment - Fact
Share :
Class 3 Plants And Animals - Fact
Share :
Class 3 Transport And Communication - Fact
Share :

Class 4



Class 4 Animals - Fact
Share :
Class 4 Clothing - Fact
Share :
Class 4 Earth And Universe - Fact
Share :
Class 4 Food And Digestion - Fact
Share :
Class 4 Human Body And Health - Fact
Share :
Class 4 Our Environment - Fact
Share :
Class 4 Plants - Fact
Share :

Class 5



Class 5 Animals - Fact
Share :
Class 5 Earth & Universe - Fact
Share :
Class 5 Human Body & Health - Fact
Share :
Class 5 Water - Fact
Share :

Class 6



Class 6 Change Around Us - Fact
Share :
Class 6 Components Of Food - Fact
Share :
Class 6 Electricity And Circuits - Fact
Share :
Class 6 Fibre To Fabric - Fact
Share :
Class 6 Fun With Magnets - Fact
Share :

Class 7



Class 7 Winds, Storms and Cyclones - Facts
Share :
Class 7 Nutrition in Plants & Animals - Facts
Share :
Class 7 Respiration in Organisms - Facts
Share :
Class 7 Acids, Bases & Salts - Fact
Share :
Class 7 Heat - Fact
Share :
Class 7 Natural Resources And Their Conservation - Fact
Share :
Class 7 Nutrition In Plants & Animals - Fact
Share :
Class 7 Respiration In Organism - Fact
Share :
Class 7 Transportation In Plants - Fact
Share :
Class 7 Winds, Storms And Cyclones - Fact
Share :

Class 8



Class 8 Cell - Fact
Share :
Class 8 Coal And Petroleum - Fact
Share :
Class 8 Combustion And Flame - Fact
Share :
Class 8 Crop Production And Management - Fact
Share :
Class 8 Force And Pressure - Fact
Share :
Class 8 Friction - Fact
Share :
Class 8 Reproduction In Animals - Fact
Share :
Class 8 Sound - Fact
Share :
Class 8 Synthetic Fibres And Plastics - Fact
Share :

Class 9



Class 9 Atoms & Molecules - Fact
Share :
Class 9 Cell - The Fundamental Unit Of Life - Fact
Share :
Class 9 Force And Laws Of Motion - Fact
Share :
Class 9 Gravitation - Fact
Share :
Class 9 Improvement In Food Resources - Fact
Share :
Class 9 Is Matter Around Us Pure - Fact
Share :
Class 9 Motion - Fact
Share :
Class 9 Naturalresources - Fact
Share :
Class 9 Sound - Fact
Share :
Class 9 Structure Of Atom - Fact
Share :
Class 9 Tissues - Fact
Share :
Class 9 Why Do We Fall Ill - Fact
Share :

Class 10



Class 10 Acids, Bases And Salts - Fact
Share :
Class 10 Carbon And Its Compounds - Fact
Share :
Class 10 Chemical Reactions And Equations - Fact
Share :
Class 10 Electricity - Fact
Share :
Class 10 Heredity And Evolution - Fact
Share :

 

Explore

SchoolPlus Program

Yearlong program for Olympiads preparation & to build necessary skills for future.

Explore More icon

Olympiad Exam Dates

Time to mark your calendar with the upcoming Olympiads exam schedule.

Explore More icon

LIVE Classes for Olympiads

Take your Olympiad preparation to next-level by taking LIVE Classes.

Explore More icon

Olympiad Test Series

Assess your performance by taking topic-wise and full length mock tests.

Explore More icon

International Olympiads

Online tuitions for international compeitions like SASMO, SEAMO, etc for Grades 1-11.

Explore More icon

70%