Unit 5 energy deborah and ana s

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Unit 5 energy deborah and ana s

  1. 1. By Ana and Deborah
  2. 2.  Energy is the ability of an object to change things around it.  Energy can be mechanical , light , sound , thermal electrical , chemical or nuclear
  3. 3.  Can be:  Renewable such as water, wind, sun, biomass or waves and tidies  Non Renewable such as fuels or uranium and plutonium
  4. 4.  Our bodies transform chemical energy from food into mechanical energy for movement.
  5. 5. Electricity is a form of energy : • We can transport it easy through power lines. • It can transform into others types of energy, like the light energy of a light bulb.
  6. 6. Static electricity : it occurs when an object accumulate electrical charge. It can be :  Neutral  Positively charge  Negatively charge
  7. 7. • Conducting materials : electrical charges moves easily through them. • Insulating materials : electrical charges cannot move through them.
  8. 8. Electrical current is the movement of electrical charges through a conducting material.
  9. 9. Producing and using electricity cause problems to the environment.  Changes in landscapes  Depletion  Pollution
  10. 10. Use public transport Turn off heaters Practise the 3 R`s
  11. 11. Magnetism is the ability of materials to atract metals.
  12. 12. All magnets have two parts, their north poles (N) and their south poles (S)

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