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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

Distance-Time Graphs Flashcards

All 5 cards in this deck

What does a horizontal line on a distance–time graph show?: The object is stationary (not moving).
On a distance–time graph, what does a steeper line mean?: The object is moving faster.
How do you find the speed from a straight line on a distance–time graph?: Work out the gradient of the line: speed = distance ÷ time.
On a distance–time graph, what does a curved line show?: The speed is changing: if the gradient is increasing the object is speeding up; if the gradient is decreasing it is slowing down.
How do you find the speed at a particular time from a curved distance–time graph?: Draw a tangent to the curve at that time and work out the gradient of the tangent.