English National Curriculum - Science Science

6. Explore efficiency and reducing unwanted energy transfers

Mission Objectives

Describe energy transfers in a closed system using ideas about conservation of energy

Explain how energy can be dissipated in a system

Recall the equations and use them to calculate the efficiency of an energy transfer

Explain ways of reducing unwanted energy transfers

Rocket Words Quiz

See if you know all the meanings of the rocket words

Assessment Quiz

Test your knowledge of this lesson

Word Search Game

Find all the rocket words in the grid

Lesson Resources

Keywords

Words and meanings to learn

incandescent

the emission of visible light from a hot object

watt

the unit for power. The power when 1 J of work is done in 1 s

thermal

relating to heat or changes in temperature

efficiency

a measure of how much energy is converted into a useful form

conductivity

a measure of how easily an electric current or thermal energy flows through a material

Sponsored by

United Kingdom National Nuclear Laboratory

This lesson has been written by

Required Resources

Resources: Class presentation and handout.

Handout: Information on Carnot and his work on machines for the students to read and summarise. Calculations on efficiency, including changing the subject of the equation. Discuss machines that are 100% efficient. Is this possible? Why not?

Warning: You are now leaving Developing Experts.

These links are being provided as a convenience and for informational purposes only; they do not constitute an endorsement or an approval from Developing Experts of any of the products, services or opinions of the corporation or organisation or individual.

Developing Experts bears no responsibility for the accuracy, legality or content of the external site or for that of subsequent links. Contact the external site for answers to questions regarding its content.

You will be redirected to:

Expert film

Mission assignment film

Exemplar Work

View some great examples of student work from this unit

No exemplar works have been uploaded for this lesson yet.

Careers related to this lesson

Operations Support Worker

Nuclear Decomissioning Operative

Nuclear Decomissioning Team Leader

Nuclear Decomissioning Site Engineer

Manager of Production or Maintenance

Technical or Production Director