Physics GCSE
Particle spacing and number density
What Particle spacing and number density means in Physics GCSE, as defined for OCR.
Definition of Particle spacing and number density
Check what you remember
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Reference: OCR
In a larger volume the particles are spread more thinly, so the number of particles per unit volume falls.
Topics that use Particle spacing and number density
- Pressure (OCR GCSE)
Related terms
- Atmospheric pressure and weight of air
- Cause-and-effect explanation
- Closed systems
- Collisions with container walls
- Comparing pressures at different heights
- Constant temperature and constant average particle speed
- Density and depth
- density comparison
Using Particle spacing and number density in the exam
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