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Sources of Electrical Energy

 
Energy is the ability to do work. There are various type of energy and electrical energy is one of them. Electricity is a phenomenon that resulted from the existence and flow of electrical charge.
 
5.1  Sources of Electrical Energy
 
  • Electrical energy is invisible but its function can be observed all  the times.
  • Electrical energy is used to produce light, heat, sound and to move things.
  • There are 6 electrical enery sources, namely: 
  1. Hydroelectric Power
  2. Solar cells
  3. Dry cell
  4. Dinamo
  5. Accumulator
  6. Generator
 
Hydroelectric Power
  • Hydroelectric power stations use kinetic energy of water to move the water turbine and generate electricity
  • Hydroelectric power stations use the kinetic energy of water (released from a damn or waterfall) to turn the water turbine and generate electricity
 
Solar cell
  • Solar cells convert sunlight energy into electrical energy
  • Solar cells are used in tools such as satellites and calculators
 
Dry cell
  • Dry cells store chemical energy
  • Chemical energy is converted into electrical energy to move tools such as toy cars
  • Dry cells are used because of their small size and easy to carry
 
Dynamo
  • Dynamo is a magnetic rotation in a loop of wire that converts kinetic energy into electrical energy
  • A dynamo is mounted on the bike to turn on the lights on the bike
  • When the bicycle tire rotates, the small wheels on the dynamo also rotates
 
Accumulator
  • Accumulator converts chemical energy into electrical energy
  • Accumulator is used to move motor vehicles such as cars
 
Generator
  • Penjana menukarkan tenaga kimia daripada bahan api fosil kepada tenaga elektrik
 
 

 

The views expressed in the notes here are those of the contributor and don’t necessarily represent the views of pandai.

Sources of Electrical Energy

 
Energy is the ability to do work. There are various type of energy and electrical energy is one of them. Electricity is a phenomenon that resulted from the existence and flow of electrical charge.
 
5.1  Sources of Electrical Energy
 
  • Electrical energy is invisible but its function can be observed all  the times.
  • Electrical energy is used to produce light, heat, sound and to move things.
  • There are 6 electrical enery sources, namely: 
  1. Hydroelectric Power
  2. Solar cells
  3. Dry cell
  4. Dinamo
  5. Accumulator
  6. Generator
 
Hydroelectric Power
  • Hydroelectric power stations use kinetic energy of water to move the water turbine and generate electricity
  • Hydroelectric power stations use the kinetic energy of water (released from a damn or waterfall) to turn the water turbine and generate electricity
 
Solar cell
  • Solar cells convert sunlight energy into electrical energy
  • Solar cells are used in tools such as satellites and calculators
 
Dry cell
  • Dry cells store chemical energy
  • Chemical energy is converted into electrical energy to move tools such as toy cars
  • Dry cells are used because of their small size and easy to carry
 
Dynamo
  • Dynamo is a magnetic rotation in a loop of wire that converts kinetic energy into electrical energy
  • A dynamo is mounted on the bike to turn on the lights on the bike
  • When the bicycle tire rotates, the small wheels on the dynamo also rotates
 
Accumulator
  • Accumulator converts chemical energy into electrical energy
  • Accumulator is used to move motor vehicles such as cars
 
Generator
  • Penjana menukarkan tenaga kimia daripada bahan api fosil kepada tenaga elektrik
 
 

 

The views expressed in the notes here are those of the contributor and don’t necessarily represent the views of pandai.
Chapter : Electricity
Topic : Sources of Electrical Energy
Year 5 Science
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