Sustainable Desk Light

Your task is to design and make a low energy desk light. In what 2 ways could the desk light be made sustainable?

• Use recycled material

• Use battery to power it

• Use an LED instead of a bulb

• Use Oak wood

Consider the design of your low energy desk light. What materials did you use in its construction?

• Acrylic

• Pine

• Polypropylene

• MDF

• Plywood

Define - What is meant by the term energy?

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Answer explanation

Energy is simply defined as 'The ability to do work'

What unit do we use to measure energy?

• Amps

• Joules

• Watts

• Metres

Which of these are different forms of energy?

• Calories

• Chemical

• Kinetic

• Speed

• Potential

Which of these are renewable sources of energy?

• Coal

• Nuclear

• Biomass

• Hydro

Give one disadvantage for Biomass.

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Answer explanation

Disadvantages of biomass energy

• Expensive. The production of biomass energy can come with a high price tag. ...

• Requires space. Biomass energy plants need quite a bit of space, mainly because of needing storage space. ...

• Greenhouse gas emissions.

  Inefficient.

The UK government energy target for 2050 is to achieve 'what'? carbon emissions?

Define what is meant by the term renewable energy.

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Answer explanation

Renewable energy is energy derived from natural sources that are replenished at a higher rate than they are consumed. Sunlight and wind, for example, are such sources that are constantly being replenished. Renewable energy sources are plentiful and all around us.

Think about how power gets from a powerstation to the lights in this room and put these in the correct order.

• Energy generated from chemical store at power plant

• Energy transferred as heat to Water and steam

• Energy transferred as movement in turbine

• Energy transferred as electricity in generator.

• Electricity transmitted from generator to transformer and onto homes via transmission lines.