1.11.13

Energy Wastage

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Wasted Energy

When one type of energy is converted into another type of energy, some energy is wasted (transferred into unwanted types of energy). This dissipates (is spread out) to anything nearby.

Illustrative background for Car engines - noise and heatIllustrative background for Car engines - noise and heat ?? "content

Car engines - noise and heat

  • Car engines make a lot of noise and get hot when they are being used to move you about.
  • The useful energy here is kinetic energy because you want the car to move you from one place to another.
  • The heat and sound energy are wasted energy because they are of no use to you.
Illustrative background for Wires - heatIllustrative background for Wires - heat ?? "content

Wires - heat

  • When wires are used in an electrical circuit they heat up.
  • This is often not useful energy so is wasted.
Illustrative background for Friction - heatIllustrative background for Friction - heat ?? "content

Friction - heat

  • In almost every energy transfer, friction creates heat energy and this energy is often wasted.

Jump to other topics

1Motion, Forces & Energy

1.1Physical Quantities & Measurement Techniques

1.2Motion

1.3Mass & Weight

1.4Density

1.5Forces: Effects of Forces

1.6Forces: Turning Effects of Forces

1.7Forces: Centre of Gravity

1.8Momentum

1.9Energy, Work, & Power: Energy

1.10Energy, Work & Power: Work

1.11Energy, Work & Power: Energy Resources

1.12Energy, Work & Power: Power

1.13Pressure

2Thermal Physics

3Waves

4Electricity & Magnetism

4.1Simple Phenomena of Magnetism

4.2Electrical Quantities: Electric Charge

4.3Electrical Quantities: Electric Current

4.4Electromotive Force & Potential Difference

4.5Electrical Quantities: Resistance

4.6Electrical Energy & Electrical Power

4.7Electric Circuits: Circuit Diagrams & Components

4.8Electric Circuits: Series & Parallel Circuits

4.9Electric Circuits: Action & Use

4.10Electrical Safety

4.11Electromagnetic Effects: Electromagnetic Induction

4.12Electromagnetic Effects: The A.C. Generator

4.13Magnetic Effect of a Current

4.14Force on a Current-Carrying Conductor

4.15Electromagnetic Effects: The D.C. Motor

4.16Electromagnetic Effects: The Transformer

5Nuclear Physics

6Space Physics

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