We use energy to do. . .

• We use energy to do work and make all movements. When we eat, our bodies transform the food into energy to do work. When we run or walk or do some work, we ‘burn’ energy in our bodies. Cars, planes, trolleys, boats, and machinery also transform energy into work. Work means moving or lifting something, warming or lighting something. There are many sources of energy that help to run the various machines invented by man.

Measuring Energy

Energy is measured in Joules (J). A kJ is one thousand joules, just like a km is a thousand metres.

Different Types of Energy

Kinetic Energy

• Electrical Energy
• Radiant Energy
• Thermal Energy
• Motion Energy
• Sound

Potential Energy

• Chemical Energy
• Stored Mechanical Energy
• Nuclear Energy
• Gravitational Energy

Energy In Transportation

Energy In Transportation

• 35% Automobiles
• 26% Light Trucks
• 19% Other Trucks
• 8% Aircraft
• 5% Water
• 4% Construction & Agriculture
• 4% Pipelines
• 3% Trains & Buses

Energy % Among Mobile Homes

Main Heating Fuel and Equipment: 

• 32% use Natural Gas
• 43% use Electricity
•   3% use Fuel Oil
• 15% use LPG
•   4% use Kerosene

For Appliances:

• 85% have a clothes washer
• 76% have a clothes dryer
• 40% have a personal computer

Energy % in Multi familys

Main Heating Fuel and Equipment:

• 48% use Natural Gas
• 42% use Electricity
•   7% use Fuel Oil
• almost no one uses LPG or Kerosene

For Appliances:

• 32% have a clothes washer
• 27% have a clothes dryer
• 41% have a personal computer

Energy % in Single familys

Main Heating Fuel and Equipment:

•  60% use Natural Gas
•  23% use Electricity
•   8% use Fuel Oil
•   5% use LPG
•   1% use Kerosene

For Appliances:

• 95% have a clothes washer
• 90% have a clothes dryer
• 63% have a personal computer

Energy in houses and transportation eg.

        

• You can see in the first picture that you use most energy in  industry & manufacturing with 32%
•  In the second picure you can see that space heating is the most with 47%

windmills

• These are windmills they use the force of wind to convert wind movement to energy.

Energy

 Energy

The energy sources have been split into three categories: fossil fuels, renewable sources, and nuclear sources. The fossil fuels covered here are coal, petroleum, and natural gas. The renewable energy sources are solar, wind, hydroelectric, biomass, and geothermal power. The nuclear-powered sources are fission and fusion.

Sources of energy

• Non-renewable
• oil (petroleum)
• natural gas
• coal
• uranium (nuclear)

• Renewable
• solar
• wind
• hydro
• ocean
• biomass
• geothermal