TheLearnDen

Year 9 · Science

Energy efficiency, power and cost

12 checked activities 9 video matches

Start here

Focus on calculating energy cost and power. Start with “Calculate Energy and Cost of Electricity Bills”, then explain the idea in your own words.

Year 9 learners practise calculating energy cost and power.

The activities include Calculate Energy and Cost of Electricity Bills, Compare Advantages and Disadvantages of Different Energy Resources, Define and Calculate Power, and related practice. The checked support below includes video, worksheet, teaching. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.

Activities covered

  • Calculate Energy and Cost of Electricity Bills
  • Compare Advantages and Disadvantages of Different Energy Resources
  • Define and Calculate Power
  • Describe Multi-Step Energy Changes
  • Describe Processes of Heat Transfer
  • Explain How Simple Machines Work
  • Identify and Compare Fuels and Energy Resources
  • Identify Energy Changes in Electrical Circuits
  • Interpret the Energy Information on Food Labels and Use Different Units of Energy
  • Investigate Multi-Step Energy Changes
  • Understand Energy Changes
  • Understand How to Calculate Fuel Uses and Costs

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Watch — a video of a teacher explaining it

Learn — a lesson or teaching page to read and work through

Practise — questions or activities to try

Print — a worksheet you can print, usually with answers

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Oak National Academy, BBC Bitesize, Corbettmaths and Mathsframe normally open with no account. Twinkl access varies by resource, so we only show a free label after checking the resource's own page. Unconfirmed access appears only under Everything.

1

Watch it explained

a teacher walks through it

WatchOak National Academy

Mains electricity

Best for: a clear explanation before you practise

FreeVerified match
Open video
WatchOak National Academy

Using renewable energy resources

Best for: a clear explanation before you practise

FreeVerified match
Open video
WatchOak National Academy

Transferring energy

Best for: a clear explanation before you practise

FreeVerified match
Open video
WatchOak National Academy

Levers

Best for: a clear explanation before you practise

FreeVerified match
Open video
WatchOak National Academy

Comparing fuels

Best for: a clear explanation before you practise

FreeVerified match
Open video
2

Learn it properly

lessons and teaching pages

LearnOak National Academy

Forces: lesson sequence

Best for: worked examples and step-by-step teaching

FreeVerified match
Open lesson
LearnOak National Academy

Hidden forces: lesson sequence

Best for: worked examples and step-by-step teaching

FreeVerified match
Open lesson
3

Practise it

questions and activities to try

4

Print and finish

worksheets away from the screen

PrintBBC Bitesize

Energy - KS3 Physics

Best for: pencil-and-paper practice away from the screen

FreeVerified match
Open worksheet