School physics revision 14-16 GCSE level: Electricity equations and usefulness of electricity in the home

Use the page sub-index, scroll down, take time to study the content or [Use the website search box] re-edit 26/05/2023

ELECTRICITY Section 1: Useful electrical appliances in the home, safety fuses and earthing, transferring electrical energy in the home

ALSO power and energy transfer calculations including

P = IV = I2R = E/t, E = Pt = IVt and electricity cost calculations

IGCSE AQA GCSE Physics Edexcel GCSE Physics OCR GCSE Gateway Science Physics OCR GCSE 21st Century Science Physics Doc Brown's school physics revision notes: GCSE physics, IGCSE physics, O level physics,  ~US grades 8, 9 and 10 school science courses or equivalent for ~14-16 year old students of physics

Why are electrical devices so useful?  How do we calculate the energy transfers in an electrical appliance?  What do we mean by a unit of electricity used?  How do we calculate the cost of running an electrical device?


Sub-index for this section on electricity in the home

1. Important definitions, descriptions, formulae and units for electrical science

2. The usefulness of electrical appliances in the home

3. The a.c. electricity supply to the home, wiring, insulation, and plugs (more on safety in Part 5.)

4. Power ratings of appliances in the home and rate of energy transfer

5. More on the dangers of the live wire, fuses and earthing appliances for extra safety

6. Power, energy transfer and electricity cost calculation QUESTIONS

7. Power, energy transfer and electricity cost calculation ANSWERS

See also Electricity Part 3 for more on V = IR,  Q = It  and  E = QV calculations

and Types of energy and stores - examples compared and explained


  • Check out your practical work you did or teacher demonstrations you observed, all of this is part of good revision for your module examination context questions and helps with 'how science works'.

    • reading the electricity meter at home on a daily or weekly basis where you may have looked for trends in usage and try to explain these, eg in terms of weather conditions - extra usage of heating systems in cold weather,

    • plan and carry out an investigation using an electrical joulemeter to measure the energy transferred by low voltage bulbs of different powers, low voltage motors and low voltage immersion heaters.


 WHERE NEXT?

ALL my Physics Notes

Find your GCSE science course for more help links to revision notes

Use your mobile phone or ipad etc. in 'landscape' orientation

This is a BIG website, you need to take time to explore it [Website Search Box]

email doc brown - comment - query?

Electricity and magnetism revision notes index

1. Usefulness of electricity, safety, energy transfer, cost & power calculations, P = IV = I2R, E = Pt, E=IVt

2. Electrical circuits and how to draw them, circuit symbols, parallel circuits, series circuits explained

3. Ohm's Law, experimental investigations of resistance, I-V graphs, calculations V = IR, Q = It, E = QV

4. Circuit devices and how are they used? (e.g. thermistor and LDR), relevant graphs

5. More on series and parallel circuits, circuit diagrams, measurements and calculations

6. The 'National Grid' power supply, environmental issues, use of transformers

7. Comparison of methods of generating electricity (= energy part 6)

8. Static electricity and electric fields, uses and dangers of static electricity

9. Magnetism - magnetic materials - temporary (induced) and permanent magnets - uses

10. Electromagnetism, solenoid coils, uses of electromagnets

11. Motor effect of an electric current, electric motor, loudspeaker, Fleming's left-hand rule, F = BIL

12. Generator effect, applications e.g. generators generating electricity and microphone


HOME PAGE of Doc Brown's Science

UK KS3 Science Quizzes for students aged ~11-14, ~US grades 6 to 8

BiologyChemistryPhysics notes for GCSE/IGCSE  students aged ~14-16, ~US grades 9 to 10

Advanced Level pre-university Chemistry revision notes for students aged ~16-18 ~US grades 11 to 12


IGCSE revision notes electricity cost calculations KS4 physics Science notes on electricity cost calculations GCSE physics guide notes on electricity cost calculations for schools colleges academies science course tutors images pictures diagrams for electricity cost calculations science revision notes on electricity cost calculations for revising physics modules physics topics notes to help on understanding of electricity cost calculations university courses in physics careers in science physics jobs in the engineering industry technical laboratory assistant apprenticeships engineer internships in physics USA US grade 8 grade 9 grade10 AQA GCSE 9-1 physics science revision notes on electricity cost calculations GCSE notes on electricity cost calculations Edexcel GCSE 9-1 physics science revision notes on electricity cost calculations for OCR GCSE 9-1 21st century physics science notes on electricity cost calculations OCR GCSE 9-1 Gateway  physics science revision notes on electricity cost calculations WJEC gcse science CCEA/CEA gcse science revision study notes for 14-16 school physics AQA Edexcel OCR IGCSE/GCSE 9-1 physics science course topics modules for studying P = IV P = I2R electricity calculations explaining the usefulness of electrical appliances, calculations on transferring electrical energy using the power formula, household cost calculations, the need for electrical safety in the home, how to wire a plug wire, what do the colours mean on the electrical cable insulation igcse gcse physics Important electricity definitions, descriptions, formulae and units examples of the usefulness of electrical appliances e.g. in the home, describing the uses of electricity in the home including safety aspects - plugs, power ratings e.g. appliances in the home, the dangers of the live wire, fuses and need for earthing appliances for extra safety, calculations involving power, energy transfer and electricity cost calculations

KS3 BIOLOGY QUIZZES ~US grades 6-8 KS3 CHEMISTRY QUIZZES ~US grades 6-8 KS3 PHYSICS QUIZZES ~US grades 6-8 HOMEPAGE of Doc Brown's Science Website EMAIL Doc Brown's Science Website
GCSE 9-1 BIOLOGY NOTES GCSE 9-1 CHEMISTRY NOTES and QUIZZES GCSE 9-1 PHYSICS NOTES GCSE 9-1 SCIENCES syllabus-specification help links for biology chemistry physics courses IGCSE & O Level SCIENCES syllabus-specification help links for biology chemistry physics courses
Advanced A/AS Level ORGANIC Chemistry Revision Notes US K12 ~grades 11-12 Advanced A/AS Level INORGANIC Chemistry Revision Notes US K12 ~grades 11-12 Advanced A/AS Level PHYSICAL-THEORETICAL Chemistry Revision Notes US K12 ~grades 11-12 Advanced A/AS Level CHEMISTRY syllabus-specificatio HELP LINKS of my site Doc Brown's Travel Pictures
Website content Dr Phil Brown 2000+. All copyrights reserved on revision notes, images, quizzes, worksheets etc. Copying of website material is NOT permitted. Exam revision summaries & references to science course specifications are unofficial.

 Doc Brown's Physics exam study revision notes

*

Google ENTER specific physics words or courses e.g. topic, module, exam board, formula, concept, equation, 'phrase', homework question! anything of physics interest!    This is a very comprehensive Google generated search of my website

Find your GCSE science course for more help links to revision notes

INDEX of all my PHYSICS NOTES

TOP OF PAGE and sub-index