For Students
For Teachers
For Parents

Join class Login Sign up

For Students
For Teachers
For Parents
For Schools
Resources

Join class
Login

Revision notes
IGCSE
Physics
Edexcel IGCSE
Higher
Efficiency - Calculations

Efficiency - Calculations

Physics: Edexcel IGCSE, topic 4.2.5

Test yourself on Efficiency - Calculations

Practise this topic for free

Previous topic4.2.4 Reducing Unwanted Energy Transfer Next topic4.2.6 Grade 9 - Energy & Efficiency

Physics: Edexcel IGCSE contents

1 Forces & Motion
2 Electricity
3 Waves
4 Energy Resources & Energy Transfers
5 Solids, Liquids & Gases
6 Magnetism & Electromagnetism
7 Radioactivity & Particles
- 7.1 Atoms
  7.1.1 Atomic Model
  7.1.2 Structure of an Atom
  7.1.3 The Charges of Sub-Atomic Particles
  7.1.4 Alpha Particles
  7.1.5 The Model of the Atom
  7.1.6 Proton & Nucleon Numbers
  7.1.7 Atoms & Ions
  7.1.8 Isotopes 1
  7.1.9 Isotopes 2
  7.1.10 Carbon Nuclides
- 7.2 Radioactivity
  7.2.1 Radioactive Decay
  7.2.2 Types of Radiation
  7.2.3 Three Types of Emission
  7.2.4 Ionising vs Penetration
  7.2.5 Nuclear Fission
  7.2.6 Nuclear Reactors
  7.2.7 Nuclear Fission - Uncontrolled Chain Reaction
  7.2.8 Radioactive Decay
  7.2.9 Decay Equations
  7.2.10 Nuclear Fission Equation
  7.2.11 Half Life & Background Radiation
  7.2.12 Measuring Half-Life From a Graph
  7.2.13 Background Radiation
  7.2.14 Practical Applications of Radiation
  7.2.15 Ions & Ionising Radiation
  7.2.16 Safety Precautions
  7.2.17 Peer Review
  7.2.18 End of Topic Test - Radioactivity & Particles
  7.2.19 Grade 9 - Radioactivity & Particles
  7.2.20 Exam-Style Questions - Radioactive Decay
8 Astrophysics
- 8.1 Motion in the Universe
  8.1.1 The Solar System
  8.1.2 Gravitational Field Strength
  8.1.3 Orbits
  8.1.4 Orbital Motion
- 8.2 Evolution of Stars
  8.2.1 Life Cycle of a Star like the Sun
  8.2.2 Life Cycle of a Star Much Bigger than the Sun
  8.2.3 Absolute Magnitude
  8.2.4 Hertzsprung-Russell Diagrams
  8.2.5 Exam-Style Questions - Life Cycle of a Star
- 8.3 Cosmology
  8.3.1 The Big Bang
  8.3.2 Evidence for the Big Bang
  8.3.3 CMB Radiation
  8.3.4 End of Topic Test - Astrophysics

Seneca

Teachers
Parents
Students
Your school
Join class
Get mobile app
Evidence Seneca works

Resources

Revision Notes
International A Level
IGCSE
IB Diploma
Maths
Teacher CPD
Resource Hub
Blog
Free CPD courses
Definitions
Mental health & wellbeing
Find tutors
Become a tutor

Legal

Terms
Privacy - UK
GDPR
Cookies
Privacy - DE + AT
Privacy - ES
Privacy - FR
Privacy - IT

Contact us

learnmore@seneca.io
Instagram
Facebook
YouTube
X
TikTok
Help & FAQs
Press kit

A Level Courses

A Level Biology Revision
A Level Business Revision
A Level Chemistry Revision
A Level Physics Revision
A Level Economics Revision
A Level English Language Revision
A Level English Literature Revision
A Level Geography Revision
A Level History Revision
A Level Political Studies Revision
A Level Psychology Revision
A Level Sociology Revision
A Level Maths Revision

GCSE Courses

GCSE Biology Revision
GCSE Business Revision
GCSE Chemistry Revision
GCSE Physics Revision
GCSE Computer Science Revision
GCSE Design Technology Revision
GCSE English Language Revision
GCSE English Literature Revision
GCSE Food Preparation & Nutrition Revision
GCSE French Revision
GCSE Geography Revision
GCSE German Revision
GCSE History Revision
GCSE Maths Revision
GCSE Media Studies Revision
GCSE Music Revision
GCSE Physical Education Revision
GCSE Religious Studies Revision
GCSE Sociology Revision
GCSE Spanish Revision

International A Level

International A Level Biology Revision
International A Level Chemistry Revision
International A Level Physics Revision

IGCSE

IGCSE Biology Revision
IGCSE Chemistry Revision
IGCSE Physics Revision
IGCSE Geography Revision
IGCSE English Language Revision
IGCSE Computer Science Revision

IB Diploma

IB Biology Revision
IB Physics Revision
IB Chemistry Revision
IB Business Revision
IB Economics Revision

KS3 Courses

KS3 English Revision
KS3 French Revision
KS3 Spanish Revision
KS3 Geography Revision
KS3 History Revision
KS3 Maths Revision
KS3 Science Revision

KS2 Courses

KS2 Computing
KS2 English
KS2 French
KS2 Geography
KS2 History
KS2 Maths
KS2 Science