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Combined Science: Physics

GCSE · Edexcel · foundation

QuestionsFlashcards

Expressing Quantities & SI Units
- Units & Prefixes
  8
- Conversions & Standard Form
  6

Atomic Structure
Radioactive Decay
Dangers of Radiation
- Dangers of Radiation
  5
- Contamination & Irradiation
  6

Magnetism
Electromagnetism & The Motor Effect
- Magnetic Fields in Wires
  6
- Magnetic Fields in Solenoids
  6

Transformers & the National Grid
- The National Grid
  5
- The Ideal Transformer Equation
  3

Power Flashcards

All 4 cards in this deck

What is power?: The rate at which energy is transferred, i.e. the energy transferred each second.
What is one watt equal to?: One joule per second (1 W = 1 J/s).
What is the equation for power in terms of work done?: power (W) = work done (J) ÷ time taken (s), $P = E \div t$ .
What three measurements must be taken to find a student's power output as they climb a flight of stairs?: The weight of the student (N), the vertical height climbed (m) and the time taken (s).