EM Waves & Atoms (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Practise the cards
13 cards from this deck
Absorption: electron orbit change
Absorption: electron orbit change
Electron moves to higher orbit (further from nucleus), atom absorbs EM radiation
Emission: electron orbit change
Emission: electron orbit change
Electron falls to lower orbit (closer to nucleus), atom emits EM radiation
Ion formation from atom
Ion formation from atom
Electron gains enough energy and leaves atom
Gamma ray origin
Gamma ray origin
Changes in nucleus of atom
3 hazardous EM waves to human tissue
3 hazardous EM waves to human tissue
UV light, X-rays, gamma rays
UV radiation skin hazard
UV radiation skin hazard
Skin ages prematurely, increases skin cancer risk
X-ray & gamma hazard
X-ray & gamma hazard
Ionising radiation causes gene mutation, cancer
Radio waves key property
Radio waves key property
Long wavelength travels far without losing quality
Microwave key property
Microwave key property
Penetrates atmosphere to reach satellites
Infrared key property
Infrared key property
Transfers thermal energy
Visible light use in fibre optics
Visible light use in fibre optics
Best reflection/scattering in glass
UV EM wave property
UV EM wave property
Radiates least heat but more energy
X-ray key properties
X-ray key properties
Very high energy, penetrates material easily