English National Curriculum Science

7. Calculate the cost of electricity

Mission Objectives

Illustrate that the cost of electricity will vary

State how to calculation power in kWh and cost of electricity

Calculate the cost of electricity

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Keywords

Words and meanings to learn

electricity supplier

the business which sells electricity they have generated to customers, either from renewable or non-renewable sources

cost per unit

the price of electricity per kilowatt hour (£/kWh)

kWh

a unit of energy, standing for kilowatt hour; a kWh is equivalent to a 1,000 W appliance being on for one hour

smart meter

a device which allows customers to see how much electricity they are using in real time

customer

the person, or group, who buys from a supplier; in this case, the customer buys electricity from an electricity supplier to use in their home or business

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This lesson has been written by

Kate Richards

Kate’s journey as a science educator spans over 15 enriching years. Her passion for unravelling the complexities of the human body led her away from medicine (as she hates blood but loves medical t-shows) and into the world of teaching. She’s had the privilege of nurturing young minds in KS3 and KS4 science, guiding A-level Biology students, and even taught year 4 students in Spain, broadening her teaching horizons early in her career. Kate holds a Masters in Teaching (MTeach) and specialises in biology. Her research for her Master's degree focused on the profound impact of self-efficacy on classroom learning. Beyond the classroom, she finds solace in leisurely family walks and exploring new destinations through travel. She finds that the most rewarding aspect of teaching is witnessing those magical "light bulb moments" when students grasp the intricacies of science right before her eyes. 

Required Resources

Resources: Worksheets and calculators.

Handout: An investigation sheet for the students to complete.

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