BuiltWithNOF
Energy

Energy is a really important topic but where do we start?

energy mind map 1

Here are some things that famous scientists and engineers have said, or found out, about energy...

ENERGY CANNOT BE CREATED NOR DESTROYED

ENERGY IS CONSTANTLY BEING TRANSFORMED FROM ONE FORM INTO ANOTHER EG. Light into Heat or Electricity into Sound etc.

ENERGY IS SIMPLY THE ABILITY TO DO WORK SUCH AS MOVING AN OBJECT OVER A CERTAIN DISTANCE

ENERGY AND MASS ARE RELATED BY THE EQUATION E=MC2

FORMS of ENERGY

These are the forms of energy which we are most familiar with...

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speaker sound

HEAT

A glowing hot horseshoe being forged by a blacksmith

LIGHT

Light from the Sun being split up by a prism into the spectrum of colours

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MECHANICAL

A wind up clockwork mouse from the Victorian age is made to move by the energy we put into it

appliances

ELECTRICAL

A few of the many hundreds of gadgets which are powered by electricity

SOUND

Sound is produced by vibration of a loudspeaker or our own vocal chords

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CHEMICAL

Energy in the form of heat or light can often be produced or absorbed during a chemical change

We experience these forms of energy all around us every day in the lives we lead and in the gadgets we use. Our senses detect some forms of energy and all of these forms of energy are involved in the function of our own bodies.

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When a lightning storm occurs we see the LIGHT produced form the lightning bolt which itself is a stream of ELECTRICAL charge. We hear the SOUND of the thunder. We may feel the VIBRATION of the Earth. The storm was caused by the MOTION of air and water molecules in the atmosphere which have acquired energy from the effect of the Sunís HEAT on land and sea and air. The lightning causes a CHEMICAL change in the air causing the formation of Ozone from Oxygen.