Radiation Flashcards
1
Q
What is radiation?
A
Radiation is described asthetransfer of heatenergy by electromagnetic waves without involving particles
2
Q
Do all objects absorb or emit radiation?
A
Emit(give out)
3
Q
What process do the Sun use to heat the Earth?
A
Radiation
4
Q
How radiation is different to conduction or convection?
A
It involves waves/ does not involve particles
5
Q
What can we use to observe radiation?
A
Infrared camera, thermal images
6
Q
Which surface emit more radiation: black or shiny silver?
A
Black
7
Q
What real life examples of radiation can you name?
A
Solar panel is black, white houses in hot countries
8
Q
Which method of heat transfer does not involve particles?
A
Radiation
9
Q
What method of heat transfer can occur in a vacuum?
A
Radiation
