4.1.2.2

Efficiency

Content

Students should describe the idea of lost or useful energy

Students should : (HT only) Students should be able to describe ways to increase the efficiency of an intended energy transfer.

(HT only) WS 1.4 Explain everyday and technological applications of science; evaluate associated personal, social, economic and environmental implications; and make decisions based on the evaluation of evidence and arguments.

MS 1a - Recognise and use expressions in decimal form

MS 1c - Use ratios, fractions and percentages

MS 3b Change the subject of an equation

MS 3c Substitute numerical values into algebraic equations using appropriate units for physical quantities

lessons

P1.7 Efficiency

Resources

Efficiency

Foundation

Efficiency Ans

Foundation

Efficiency

Higher

Efficiency Ans

Higher

Videos

P8RtkjZ73AxnCL7A.mp4

Energy and Efficiency

Efficiency calculations

Practical

Practical

The Efficiency of a bouncy ball. Introduce accuracy (recall paralax error) and repeatability (mean)