1
Q
Define radiation.
A
The emission of energy as electromagnetic waves.
2
Q
Define what radiation is formally known as.
A
Electromagnetic Radiation.
3
Q
State the three effects of light hitting an object.
A
Absorption, reflection and transmission.
4
Q
Electromagnetic radiation is emitted by all objects on the basis that?
A
The object is above absolute zero.
5
Q
List the factors impacting the rate of emission and absorption.
A
- Surface area - The larger the higher the rate of absorption and emission.
- Temperature - The greater the difference, the greater rate of energy transfer.
- Wavelength of the incident radiation - Matte black surfaces are almost perfect absorbers and emitters of radiant energy at all wavelengths.
- Surface colour and texture - Roughened, dark surfaces will heat up faster than a shiny, light one.
Physics
flashcards
Decks in class (24)
# Cards
-
Chapter 1.1 - 'Heat Temperature'12
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Chapter 1.5 - 'Convection'6
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Chapter 1.6 - 'Radiation'5
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Chapter 5.2 - 'The Big Bang'15
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Chapter 6.1 - 'Atoms, Isotopes And Radioisotopes'11
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Chapter 6.2 - 'Radioactivity'12
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Chapter 6.3 - 'Properties Of Alpha, Beta And Gamma Radiation'3
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Chapter 6.4 - 'Half-Life And Decay Series'7
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Chapter 7.1 - 'Nuclear Fission And Energy'11
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Chapter 7.2 - 'Nuclear Fusion'7
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Chapter 7.3 - 'Electromagnetic Waves And Synchrotron Radiation'9
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Chapter 7.4 - 'The Production Of Light'2
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Chapter 5.3 - 'Particles Of The Standard Model'13
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Chapter 9.4 - Formula4
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Chapter 1.2 - 'Specific Heat Capacity'4
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Chapter 1.3 - 'Latent Heat'8
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Chapter 1.4 - 'Conduction'10
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Chapter 3.1 - 'Behaviour Of Charged Particles'10
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Chapter 3.2 - 'Electric Current and Circuits'10
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Chapter 3.3 - 'Energy in Electric Circuits'13
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Chapter 3.4 - 'Resistance'4
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Chapter 4.1 - 'Series and parallel circuits'4
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Chapter 4.2 - 'Using Electricity'9
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Chapter 5.1 - 'Measurements in the Universe'24
