3.2.17

Work

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Calculating work

Work in Physics is the energy transformation that has taken place. If you work hard in your Science lessons you will transfer lots of energy to your learning.

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Work

  • Work is the term used in Physics for energy transfer.
  • As work is energy it is measured in Joules (J).
  • One Joule (1J) is the equivalent of 1 Newton-meter (Nm).
  • Whenever an object is moved by a force ‘work’ is done.
  • As you reach up and put a book on a bookcase you are doing work.
  • As you walk up a flight of stairs you are doing work.
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Calculating work

  • The equation to calculate is: Work = Force x Distance.
    • When Work is measured in Joules (J).
    • When Force is measured in Newtons (N).
    • When Distance is measured in Metres (m).
  • If you kick a ball 3m with a force of 3N what is the work?
    • Work = 3x3 =9J. You have transferred 9J of energy.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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