Agree Learning Outcomes: Topic: 7.2.2 – Energy analysis - electric current Spec link: P7.1c and d, P7.2a and f Time: 70 mins Recorded Assessment: Review: Check answer and deal with misconceptions. Present New Knowledge: TLD – Discuss that increasing the energy in a thermal store usually means burning a field or using an electric current. Explain that a termperature difference will result in heat transfer from hot to cold. The difference in termperature is uaully referred to as thre temperature gradient. A steeper gradient means faster heat transfer. Agree Learning Outcomes: How is energy transferred to or from a thermal store? How do you analyse systems where things heat up or cool down? What is energy dissipation? Apply To Demonstrate: Complete questions. Construct Meaning: Talk through the energy analysis diagram. Students discuss and offer ideas to complete. Talk through dissipation table. Students discuss and offer ideas to complete.

Bell As you enter the room What can you tell me about this image? What conclusions can you draw from this image?

LO Learning questions How is energy transferred to or from a thermal store? How do you analyse systems where things heat up or cool down? What is energy dissipation?

How is energy transferred to or from a thermal store? NK How is energy transferred to or from a thermal store? .

How do you analyse systems where things heat up or cool down? CM How do you analyse systems where things heat up or cool down? Discuss and write down your thoughts for the covered parts below.

How do you analyse systems where things heat up or cool down? CM How do you analyse systems where things heat up or cool down?

What is energy dissipation? CM What is energy dissipation? You can reduce energy dissipation due to friction using lubrication (e.g. oil). You can reduce energy dissipation due to heating using insulation (e.g. foam walls).

What is energy dissipation? CM What is energy dissipation? You can reduce energy dissipation due to friction using lubrication (e.g. oil). You can reduce energy dissipation due to heating using insulation (e.g. foam walls).

What is energy dissipation? CM What is energy dissipation? You can reduce energy dissipation due to friction using lubrication (e.g. oil). You can reduce energy dissipation due to heating using insulation (e.g. foam walls).

ATD Try some questions

R Review  

LO Learning questions How is energy transferred to or from a thermal store? How do you analyse systems where things heat up or cool down? What is energy dissipation?